COVID-19-associated stroke: Difference between revisions

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*[[Diagnosis]] of [[stroke]] associated to [[COVID-19]] is based on history of [[Symptoms|symptoms development]], [[physical examination]], [[Imaging studies|imaging findings]], plus a positive [[COVID-19 diagnostic study of choice|COVID-19 test]].
*[[Diagnosis]] of [[stroke]] associated to [[COVID-19]] is based on history of [[Symptoms|symptoms development]], [[physical examination]], [[Imaging studies|imaging findings]], plus a positive [[COVID-19 diagnostic study of choice|COVID-19 test]].
* There are no standard established criteria for the evaluation of [[stroke]] associated to [[COVID-19]].
* There are no standard established criteria for the evaluation of [[stroke]] associated to [[COVID-19]].
*General management protocols for [[COVID-19]]-associated [[stroke]] should be established so that brain imaging can be realized as promt as possible in patients who may be candidates for [[Fibrinolysis|IV fibrinolysis]] or mechanical [[thrombectomy]] or both.<ref name="PowersRabinstein2019" />
*General management protocols for [[COVID-19]]-associated [[stroke]] should be established so that brain imaging can be realized as prompt as possible in patients who may be candidates for [[Fibrinolysis|IV fibrinolysis]] or mechanical [[thrombectomy]] or both.<ref name="PowersRabinstein2019" />


===Diagnostic Study of Choice===
===Diagnostic Study of Choice===
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|83-year old, Female
|83-year old, Female


|[[fever]], [[slurring of speech]], [[facial droop]], and reduced oral intake <ref name="AvulaNalleballe2020">{{cite journal|last1=Avula|first1=Akshay|last2=Nalleballe|first2=Krishna|last3=Narula|first3=Naureen|last4=Sapozhnikov|first4=Steven|last5=Dandu|first5=Vasuki|last6=Toom|first6=Sudhamshi|last7=Glaser|first7=Allison|last8=Elsayegh|first8=Dany|title=COVID-19 presenting as stroke|journal=Brain, Behavior, and Immunity|volume=87|year=2020|pages=115–119|issn=08891591|doi=10.1016/j.bbi.2020.04.077}}</ref>
|[[Fever]], [[slurring of speech]], [[facial droop]], and reduced oral intake <ref name="AvulaNalleballe2020">{{cite journal|last1=Avula|first1=Akshay|last2=Nalleballe|first2=Krishna|last3=Narula|first3=Naureen|last4=Sapozhnikov|first4=Steven|last5=Dandu|first5=Vasuki|last6=Toom|first6=Sudhamshi|last7=Glaser|first7=Allison|last8=Elsayegh|first8=Dany|title=COVID-19 presenting as stroke|journal=Brain, Behavior, and Immunity|volume=87|year=2020|pages=115–119|issn=08891591|doi=10.1016/j.bbi.2020.04.077}}</ref>


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|88-year old, Female
|88-year old, Female


| An 15 minute episode of weakness and numbness of right arm and word finding difficulty <ref name="AvulaNalleballe2020">{{cite journal|last1=Avula|first1=Akshay|last2=Nalleballe|first2=Krishna|last3=Narula|first3=Naureen|last4=Sapozhnikov|first4=Steven|last5=Dandu|first5=Vasuki|last6=Toom|first6=Sudhamshi|last7=Glaser|first7=Allison|last8=Elsayegh|first8=Dany|title=COVID-19 presenting as stroke|journal=Brain, Behavior, and Immunity|volume=87|year=2020|pages=115–119|issn=08891591|doi=10.1016/j.bbi.2020.04.077}}</ref>
| An 15 minute episode of [[Muscle weakness|weakness]] and [[numbness]] of right arm and word finding difficulty <ref name="AvulaNalleballe2020">{{cite journal|last1=Avula|first1=Akshay|last2=Nalleballe|first2=Krishna|last3=Narula|first3=Naureen|last4=Sapozhnikov|first4=Steven|last5=Dandu|first5=Vasuki|last6=Toom|first6=Sudhamshi|last7=Glaser|first7=Allison|last8=Elsayegh|first8=Dany|title=COVID-19 presenting as stroke|journal=Brain, Behavior, and Immunity|volume=87|year=2020|pages=115–119|issn=08891591|doi=10.1016/j.bbi.2020.04.077}}</ref>


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|58-year old, Male
|58-year old, Male


| Dense Right-sided weakness and acute onset [[aphasia]] <ref name="ZandiManji2020">{{cite journal|last1=Zandi|first1=Michael S|last2=Manji|first2=Hadi|last3=Jäger|first3=Hans Rolf|last4=Hoskote|first4=Chandrashekar|last5=Werring|first5=David J|last6=Vincent|first6=Angela|last7=Howard|first7=Robin|last8=Spillane|first8=Jennifer|last9=Lunn|first9=Michael P|last10=Thom|first10=Maria|last11=Houlihan|first11=Catherine|last12=Carletti|first12=Francesco|last13=Farmer|first13=Simon F|last14=Longley|first14=Nicky|last15=Checkley|first15=Anna|last16=Simister|first16=Robert|last17=Perry|first17=Richard J|last18=Chandratheva|first18=Arvind|last19=Schott|first19=Jonathan M|last20=Silber|first20=Eli|last21=Sreedharan|first21=Jemeen|last22=Attwell|first22=David|last23=Yoong|first23=Michael|last24=Davies|first24=Nicholas W S|last25=Carswell|first25=Christopher|last26=Everitt|first26=Alex D|last27=Miller|first27=Thomas D|last28=Hotton|first28=Gary|last29=Foulkes|first29=Alexander J M|last30=Trip|first30=S Anand|last31=Yong|first31=Wisdom|last32=Keddie|first32=Stephen|last33=Levee|first33=Viva|last34=Mehta|first34=Puja R|last35=Lim|first35=Soon Tjin|last36=McLoughlin|first36=Benjamin|last37=McNamara|first37=Patricia|last38=Morrow|first38=Jasper|last39=Christofi|first39=Gerry|last40=Price|first40=Gary|last41=Tuzlali|first41=Hatice|last42=Boyd|first42=Elena|last43=Chinthapalli|first43=Krishna|last44=Geraldes|first44=Ruth|last45=Khoo|first45=Anthony|last46=Vivekanandam|first46=Vinojini|last47=Zambreanu|first47=Laura|last48=Raftopoulos|first48=Rhian E|last49=Kumar|first49=Guru|last50=Jayaseelan|first50=Dipa L|last51=Bharucha|first51=Tehmina|last52=Wiethoff|first52=Sarah|last53=Nortley|first53=Ross|last54=Benjamin|first54=Laura|last55=Brown|first55=Rachel L|last56=Paterson|first56=Ross W|title=The emerging spectrum of COVID-19 neurology: clinical, radiological and laboratory findings|journal=Brain|year=2020|issn=0006-8950|doi=10.1093/brain/awaa240}}</ref>
| Dense Right-sided [[Muscle weakness|weakness]] and acute onset [[aphasia]] <ref name="ZandiManji2020">{{cite journal|last1=Zandi|first1=Michael S|last2=Manji|first2=Hadi|last3=Jäger|first3=Hans Rolf|last4=Hoskote|first4=Chandrashekar|last5=Werring|first5=David J|last6=Vincent|first6=Angela|last7=Howard|first7=Robin|last8=Spillane|first8=Jennifer|last9=Lunn|first9=Michael P|last10=Thom|first10=Maria|last11=Houlihan|first11=Catherine|last12=Carletti|first12=Francesco|last13=Farmer|first13=Simon F|last14=Longley|first14=Nicky|last15=Checkley|first15=Anna|last16=Simister|first16=Robert|last17=Perry|first17=Richard J|last18=Chandratheva|first18=Arvind|last19=Schott|first19=Jonathan M|last20=Silber|first20=Eli|last21=Sreedharan|first21=Jemeen|last22=Attwell|first22=David|last23=Yoong|first23=Michael|last24=Davies|first24=Nicholas W S|last25=Carswell|first25=Christopher|last26=Everitt|first26=Alex D|last27=Miller|first27=Thomas D|last28=Hotton|first28=Gary|last29=Foulkes|first29=Alexander J M|last30=Trip|first30=S Anand|last31=Yong|first31=Wisdom|last32=Keddie|first32=Stephen|last33=Levee|first33=Viva|last34=Mehta|first34=Puja R|last35=Lim|first35=Soon Tjin|last36=McLoughlin|first36=Benjamin|last37=McNamara|first37=Patricia|last38=Morrow|first38=Jasper|last39=Christofi|first39=Gerry|last40=Price|first40=Gary|last41=Tuzlali|first41=Hatice|last42=Boyd|first42=Elena|last43=Chinthapalli|first43=Krishna|last44=Geraldes|first44=Ruth|last45=Khoo|first45=Anthony|last46=Vivekanandam|first46=Vinojini|last47=Zambreanu|first47=Laura|last48=Raftopoulos|first48=Rhian E|last49=Kumar|first49=Guru|last50=Jayaseelan|first50=Dipa L|last51=Bharucha|first51=Tehmina|last52=Wiethoff|first52=Sarah|last53=Nortley|first53=Ross|last54=Benjamin|first54=Laura|last55=Brown|first55=Rachel L|last56=Paterson|first56=Ross W|title=The emerging spectrum of COVID-19 neurology: clinical, radiological and laboratory findings|journal=Brain|year=2020|issn=0006-8950|doi=10.1093/brain/awaa240}}</ref>


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* The use of [[stroke]] scales such as the [[National Institutes of Health Stroke Scale|National Institutes of Health Stroke Scale (NIHSS)]] (Table 1) helps to measure the degree of [[neurological]] [[Disability|impairment]], ease communication, may help select patients candidates for [[Fibrinolysis|fibrinolytic]] or [[Thrombectomy|mechanical]] therapy, permits the evaluation of changing clinical status, and identifies those patients at higher risk for complications (eg. [[intracerebral hemorrhage]]).<ref name="AdamsDavis1999">{{cite journal|last1=Adams|first1=H. P.|last2=Davis|first2=P. H.|last3=Leira|first3=E. C.|last4=Chang|first4=K.-C.|last5=Bendixen|first5=B. H.|last6=Clarke|first6=W. R.|last7=Woolson|first7=R. F.|last8=Hansen|first8=M. D.|title=Baseline NIH Stroke Scale score strongly predicts outcome after stroke: A report of the Trial of Org 10172 in Acute Stroke Treatment (TOAST)|journal=Neurology|volume=53|issue=1|year=1999|pages=126–126|issn=0028-3878|doi=10.1212/WNL.53.1.126}}</ref>
* The use of [[stroke]] scales such as the [[National Institutes of Health Stroke Scale|National Institutes of Health Stroke Scale (NIHSS)]] (Table 1) helps to measure the degree of [[neurological]] [[Disability|impairment]], ease communication, may help select patients candidates for [[Fibrinolysis|fibrinolytic]] or [[Thrombectomy|mechanical]] therapy, permits the evaluation of changing clinical status, and identifies those patients at higher risk for complications (eg. [[intracerebral hemorrhage]]).<ref name="AdamsDavis1999">{{cite journal|last1=Adams|first1=H. P.|last2=Davis|first2=P. H.|last3=Leira|first3=E. C.|last4=Chang|first4=K.-C.|last5=Bendixen|first5=B. H.|last6=Clarke|first6=W. R.|last7=Woolson|first7=R. F.|last8=Hansen|first8=M. D.|title=Baseline NIH Stroke Scale score strongly predicts outcome after stroke: A report of the Trial of Org 10172 in Acute Stroke Treatment (TOAST)|journal=Neurology|volume=53|issue=1|year=1999|pages=126–126|issn=0028-3878|doi=10.1212/WNL.53.1.126}}</ref>
*The pre-stroke Modified Rankin Score (mRS) is an estimated score used to assess the patient’s pre-[[stroke]] level of function. An estimated mRS should be abstracted from current [[medical record]] documentation about the patient’s ability to perform activities of daily living prior to the hospitalization for the acute [[ischemic stroke]] event.<ref name="urlPre-Stroke Modified Rankin Score (mRS) (v2018B)" />
*The pre-stroke Modified Rankin Score (mRS) is an estimated score used to assess the patient’s pre-[[stroke]] level of function. An estimated mRS should be abstracted from current [[medical record]] documentation about the patient’s ability to perform activities of daily living prior to the hospitalization for the acute [[ischemic stroke]] event.<ref name="urlPre-Stroke Modified Rankin Score (mRS) (v2018B)" />
*[[ASPECT|Alberta stroke program early CT score (ASPECTS)]] is a 10 point quantitative score used to asses early [[Ischemia|ischemic]] changes in patients suspected of having acute large vessel anterior circulation oclussion.<ref name="urlHome" />
*[[ASPECT|Alberta stroke program early CT score (ASPECTS)]] is a 10 point quantitative score used to asses early [[Ischemia|ischemic]] changes in patients suspected of having acute large vessel anterior circulation [[occlusion]].<ref name="urlHome" />


{| class="wikitable"
{| class="wikitable"
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|-
|-
| rowspan="4" |1A
| rowspan="4" |1A
| rowspan="4" |Level of consciousness
| rowspan="4" |Level of [[consciousness]]
|0—Alert
|0—[[Alertness|Alert]]
|-
|-
|1—Drowsy
|1—[[Drowsiness|Drowsy]]
|-
|-
|2—Obtunded
|2—[[Obtundation|Obtunded]]
|-
|-
|3—Coma/unresponsive
|3—[[Coma]]/unresponsive
|-
|-
| rowspan="3" |1B
| rowspan="3" |1B
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|0—Normal horizontal movements
|0—Normal horizontal movements
|-
|-
|1—Partial gaze palsy
|1—Partial [[gaze palsy]]
|-
|-
|2—Complete gaze palsy
|2—Complete [[gaze palsy]]
|-
|-
| rowspan="4" |3
| rowspan="4" |3
| rowspan="4" |[[Visual fields]]
| rowspan="4" |[[Visual fields]]
|0—No visual field defect
|0—No [[Vision loss|visual field defect]]
|-
|-
|1—Partial hemianopia
|1—Partial [[Hemianopsia|hemianopia]]
|-
|-
|2—Complete hemianopia
|2—Complete [[Hemianopsia|hemianopia]]
|-
|-
|3—Bilateral hemianopia
|3—Bilateral [[hemianopia]]
|-
|-
| rowspan="4" |4
| rowspan="4" |4
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|0—Normal
|0—Normal
|-
|-
|1—Minor facial weakness
|1—Minor [[facial weakness]]
|-
|-
|2—Partial facial weakness
|2—Partial [[facial weakness]]
|-
|-
|3—Complete unilateral palsy
|3—Complete unilateral [[palsy]]
|-
|-
| rowspan="5" |5
| rowspan="5" |5
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b. Right
b. Right
|0—No drift
|0—No [[drift]]
|-
|-
|1—Drift before 10 s
|1—Drift before 10 s
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|2—Falls before 10 s
|2—Falls before 10 s
|-
|-
|3—No effort against gravity
|3—No effort against [[gravity]]
|-
|-
|4—No movement
|4—No movement
Line 351: Line 351:
| rowspan="3" |7
| rowspan="3" |7
| rowspan="3" |Limb [[ataxia]]
| rowspan="3" |Limb [[ataxia]]
|0—No ataxia
|0—No [[ataxia]]
|-
|-
|1—Ataxia in 1 limb
|1—[[Ataxia]] in 1 limb
|-
|-
|2—Ataxia in 2 limbs
|2—[[Ataxia]] in 2 limbs
|-
|-
| rowspan="3" |8
| rowspan="3" |8
| rowspan="3" |[[Sensory]]
| rowspan="3" |[[Sensory]]
|0—No sensory loss
|0—No [[sensory loss]]
|-
|-
|1—Mild sensory loss
|1—Mild [[sensory loss]]
|-
|-
|2—Severe sensory loss
|2—Severe [[sensory loss]]
|-
|-
| rowspan="4" |9
| rowspan="4" |9
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|0—Norma
|0—Norma
|-
|-
|1—Mild aphasia
|1—Mild [[aphasia]]
|-
|-
|2—Severe aphasia
|2—Severe [[aphasia]]
|-
|-
|3—Mute or global aphasia
|3—Mute or global [[aphasia]]
|-
|-
| rowspan="3" |10
| rowspan="3" |10
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|0—Norma
|0—Norma
|-
|-
|1—Mild dysarthria
|1—Mild [[dysarthria]]
|-
|-
|2—Severe dysarthria
|2—Severe [[dysarthria]]
|-
|-
| rowspan="3" |11
| rowspan="3" |11
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===Laboratory Findings===
===Laboratory Findings===


*[[Serum glucose]] assesment is the only lab study that should preceed [[Alteplase|IV alteplase]] initiation, this should be over 50 mg/dL for its administration.<ref name="PowersRabinstein2019" />
*[[Serum glucose]] assessment is the only lab study that should proceed [[Alteplase|IV alteplase]] initiation, this should be over 50 mg/dL for its administration.<ref name="PowersRabinstein2019" />
*[[Coagulation studies]] and [[complete blood count]] should be delayed until after [[Alteplase|IV alteplase]] initiation unless there is suspicion for a [[coagulopathy]] disorder.<ref name="PowersRabinstein2019" />
*[[Coagulation studies]] and [[complete blood count]] should be delayed until after [[Alteplase|IV alteplase]] initiation unless there is suspicion for a [[coagulopathy]] disorder.<ref name="PowersRabinstein2019" />
* Troponin should be assesed in patients presenting with ischemic stroke.<ref name="PowersRabinstein2019" />
* Troponin should be assessed in patients presenting with ischemic stroke.<ref name="PowersRabinstein2019" />
*In adults who are 20 years of age or older and not on [[Lipid-lowering medication|lipid-lowering therapy]], measurement of either a fasting or a nonfasting [[Lipid profile|plasma lipid profile]] is effective in estimating [[Coronary heart disease|atherosclerotic cardiovascular disease (ASCVD)]] risk and documenting baseline low-density lipoprotein cholesterol (LDL-C).  4 to 12 weeks after statin initiation or dose adjustment and every 3 to 12 months thereafter based on need to assess adherence or safety.<ref name="PowersRabinstein2019" />*
*In adults who are 20 years of age or older and not on [[Lipid-lowering medication|lipid-lowering therapy]], measurement of either a fasting or a nonfasting [[Lipid profile|plasma lipid profile]] is effective in estimating [[Coronary heart disease|atherosclerotic cardiovascular disease (ASCVD)]] risk and documenting baseline low-density lipoprotein cholesterol (LDL-C).  4 to 12 weeks after statin initiation or dose adjustment and every 3 to 12 months thereafter based on need to assess adherence or safety.<ref name="PowersRabinstein2019" />*
*In patients older than 75 years of age with clinical [[Coronary heart disease|ASCVD]], it is reasonable to initiate moderate or high-intensity [[statin]] therapy after evaluation of the potential for [[Coronary heart disease|ASCVD]] risk reduction, [[adverse effects]], and [[Drug interaction|drug interactions]].*
*In patients older than 75 years of age with clinical [[Coronary heart disease|ASCVD]], it is reasonable to initiate moderate or high-intensity [[statin]] therapy after evaluation of the potential for [[Coronary heart disease|ASCVD]] risk reduction, [[adverse effects]], and [[Drug interaction|drug interactions]].*
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===MRI===
===MRI===


*[[MRI]] of the head before [[Alteplase|IV alteplase]] administration to exlude microbleeds is not recommended.<ref name="PowersRabinstein2019" />
*[[MRI]] of the head before [[Alteplase|IV alteplase]] administration to exclude microbleeds is not recommended.<ref name="PowersRabinstein2019" />
* Multinodal [[MRI]] of the head should be done in patients who present within 24 hours of the initiation of symptoms.<ref name="QureshiAbd-Allah2020" />
* Multimodal [[MRI]] of the head should be done in patients who present within 24 hours of the initiation of symptoms.<ref name="QureshiAbd-Allah2020" />
* In patients who wake up with clinical symptoms of [[stroke]] of unknown onset (more than 3 hours?), an [[MRI]] with diffusion-positive [[Fluid attenuated inversion recovery|FLAIR]] may be useful for selecting those who can benefit from [[Alteplase|IV alteplase]] administration.<ref name="PowersRabinstein2019" />
* In patients who wake up with clinical symptoms of [[stroke]] of unknown onset (more than 3 hours?), an [[MRI]] with diffusion-positive [[Fluid attenuated inversion recovery|FLAIR]] may be useful for selecting those who can benefit from [[Alteplase|IV alteplase]] administration.<ref name="PowersRabinstein2019" />


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===Medical therapy===
===Medical therapy===


* The reported cases of treatment for [[COVID-19]]-associated [[stroke]] have followed the same pattern as regular [[stroke]] with few changes. The following recomendations are mainly based on the current guidelines of management for stroke of the AHA 2019.
* The reported cases of treatment for [[COVID-19]]-associated [[stroke]] have followed the same pattern as regular [[stroke]] with few changes. The following recommendations are mainly based on the current guidelines of management for stroke of the AHA 2019.
* The use of [[thrombolysis]] via ultrasound waves concomitant to [[Fibrinolysis|IV fibrinolysis]] is not recommended.<ref name="NacuKvistad2017">{{cite journal|last1=Nacu|first1=Aliona|last2=Kvistad|first2=Christopher E.|last3=Naess|first3=Halvor|last4=Øygarden|first4=Halvor|last5=Logallo|first5=Nicola|last6=Assmus|first6=Jörg|last7=Waje-Andreassen|first7=Ulrike|last8=Kurz|first8=Kathinka D.|last9=Neckelmann|first9=Gesche|last10=Thomassen|first10=Lars|title=NOR-SASS (Norwegian Sonothrombolysis in Acute Stroke Study)|journal=Stroke|volume=48|issue=2|year=2017|pages=335–341|issn=0039-2499|doi=10.1161/STROKEAHA.116.014644}}</ref>
* The use of [[thrombolysis]] via ultrasound waves concomitant to [[Fibrinolysis|IV fibrinolysis]] is not recommended.<ref name="NacuKvistad2017">{{cite journal|last1=Nacu|first1=Aliona|last2=Kvistad|first2=Christopher E.|last3=Naess|first3=Halvor|last4=Øygarden|first4=Halvor|last5=Logallo|first5=Nicola|last6=Assmus|first6=Jörg|last7=Waje-Andreassen|first7=Ulrike|last8=Kurz|first8=Kathinka D.|last9=Neckelmann|first9=Gesche|last10=Thomassen|first10=Lars|title=NOR-SASS (Norwegian Sonothrombolysis in Acute Stroke Study)|journal=Stroke|volume=48|issue=2|year=2017|pages=335–341|issn=0039-2499|doi=10.1161/STROKEAHA.116.014644}}</ref>
*[[Alteplase|IV alteplase]] is always prefered over mechanical [[thrombectomy]] when there are no contraindications.<ref name="SaverGoyal2016">{{cite journal|last1=Saver|first1=Jeffrey L.|last2=Goyal|first2=Mayank|last3=van der Lugt|first3=Aad|last4=Menon|first4=Bijoy K.|last5=Majoie|first5=Charles B. L. M.|last6=Dippel|first6=Diederik W.|last7=Campbell|first7=Bruce C.|last8=Nogueira|first8=Raul G.|last9=Demchuk|first9=Andrew M.|last10=Tomasello|first10=Alejandro|last11=Cardona|first11=Pere|last12=Devlin|first12=Thomas G.|last13=Frei|first13=Donald F.|last14=du Mesnil de Rochemont|first14=Richard|last15=Berkhemer|first15=Olvert A.|last16=Jovin|first16=Tudor G.|last17=Siddiqui|first17=Adnan H.|last18=van Zwam|first18=Wim H.|last19=Davis|first19=Stephen M.|last20=Castaño|first20=Carlos|last21=Sapkota|first21=Biggya L.|last22=Fransen|first22=Puck S.|last23=Molina|first23=Carlos|last24=van Oostenbrugge|first24=Robert J.|last25=Chamorro|first25=Ángel|last26=Lingsma|first26=Hester|last27=Silver|first27=Frank L.|last28=Donnan|first28=Geoffrey A.|last29=Shuaib|first29=Ashfaq|last30=Brown|first30=Scott|last31=Stouch|first31=Bruce|last32=Mitchell|first32=Peter J.|last33=Davalos|first33=Antoni|last34=Roos|first34=Yvo B. W. E. M.|last35=Hill|first35=Michael D.|title=Time to Treatment With Endovascular Thrombectomy and Outcomes From Ischemic Stroke: A Meta-analysis|journal=JAMA|volume=316|issue=12|year=2016|pages=1279|issn=0098-7484|doi=10.1001/jama.2016.13647}}</ref>
*[[Alteplase|IV alteplase]] is always preferred over mechanical [[thrombectomy]] when there are no contraindications.<ref name="SaverGoyal2016">{{cite journal|last1=Saver|first1=Jeffrey L.|last2=Goyal|first2=Mayank|last3=van der Lugt|first3=Aad|last4=Menon|first4=Bijoy K.|last5=Majoie|first5=Charles B. L. M.|last6=Dippel|first6=Diederik W.|last7=Campbell|first7=Bruce C.|last8=Nogueira|first8=Raul G.|last9=Demchuk|first9=Andrew M.|last10=Tomasello|first10=Alejandro|last11=Cardona|first11=Pere|last12=Devlin|first12=Thomas G.|last13=Frei|first13=Donald F.|last14=du Mesnil de Rochemont|first14=Richard|last15=Berkhemer|first15=Olvert A.|last16=Jovin|first16=Tudor G.|last17=Siddiqui|first17=Adnan H.|last18=van Zwam|first18=Wim H.|last19=Davis|first19=Stephen M.|last20=Castaño|first20=Carlos|last21=Sapkota|first21=Biggya L.|last22=Fransen|first22=Puck S.|last23=Molina|first23=Carlos|last24=van Oostenbrugge|first24=Robert J.|last25=Chamorro|first25=Ángel|last26=Lingsma|first26=Hester|last27=Silver|first27=Frank L.|last28=Donnan|first28=Geoffrey A.|last29=Shuaib|first29=Ashfaq|last30=Brown|first30=Scott|last31=Stouch|first31=Bruce|last32=Mitchell|first32=Peter J.|last33=Davalos|first33=Antoni|last34=Roos|first34=Yvo B. W. E. M.|last35=Hill|first35=Michael D.|title=Time to Treatment With Endovascular Thrombectomy and Outcomes From Ischemic Stroke: A Meta-analysis|journal=JAMA|volume=316|issue=12|year=2016|pages=1279|issn=0098-7484|doi=10.1001/jama.2016.13647}}</ref>
*The usefulness of [[anticoagulants]] such as [[thrombin]] inhibitors ([[dabigatran]]) and [[factor Xa]] inhibitors ([[rivaroxaban]], [[apixaban]], [[edoxaban]]) is not well established in the acute setting of [[stroke]].<ref name="GioiaKate2016">{{cite journal|last1=Gioia|first1=Laura C.|last2=Kate|first2=Mahesh|last3=Sivakumar|first3=Leka|last4=Hussain|first4=Dulara|last5=Kalashyan|first5=Hayrapet|last6=Buck|first6=Brian|last7=Bussiere|first7=Miguel|last8=Jeerakathil|first8=Thomas|last9=Shuaib|first9=Ashfaq|last10=Emery|first10=Derek|last11=Butcher|first11=Ken|title=Early Rivaroxaban Use After Cardioembolic Stroke May Not Result in Hemorrhagic Transformation|journal=Stroke|volume=47|issue=7|year=2016|pages=1917–1919|issn=0039-2499|doi=10.1161/STROKEAHA.116.013491}}</ref>
*The usefulness of [[anticoagulants]] such as [[thrombin]] inhibitors ([[dabigatran]]) and [[factor Xa]] inhibitors ([[rivaroxaban]], [[apixaban]], [[edoxaban]]) is not well established in the acute setting of [[stroke]].<ref name="GioiaKate2016">{{cite journal|last1=Gioia|first1=Laura C.|last2=Kate|first2=Mahesh|last3=Sivakumar|first3=Leka|last4=Hussain|first4=Dulara|last5=Kalashyan|first5=Hayrapet|last6=Buck|first6=Brian|last7=Bussiere|first7=Miguel|last8=Jeerakathil|first8=Thomas|last9=Shuaib|first9=Ashfaq|last10=Emery|first10=Derek|last11=Butcher|first11=Ken|title=Early Rivaroxaban Use After Cardioembolic Stroke May Not Result in Hemorrhagic Transformation|journal=Stroke|volume=47|issue=7|year=2016|pages=1917–1919|issn=0039-2499|doi=10.1161/STROKEAHA.116.013491}}</ref>
*In patients who are 75 years of age or younger with clinical [[Coronary heart disease|ASCVD]], high-intensity [[statin]] therapy should be initiated or continued with the aim of achieving a 50% or greater reduction in [[LDL-C]] levels.*
*In patients who are 75 years of age or younger with clinical [[Coronary heart disease|ASCVD]], high-intensity [[statin]] therapy should be initiated or continued with the aim of achieving a 50% or greater reduction in [[LDL-C]] levels.*
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* The dose of [[Alteplase|IV alteplase]] is 0.9 mg/kg (maximum dose 90 mg) over 60 min, with 10% of the dose given as a bolus over 1 min.<ref name="PowersRabinstein2019" />
* The dose of [[Alteplase|IV alteplase]] is 0.9 mg/kg (maximum dose 90 mg) over 60 min, with 10% of the dose given as a bolus over 1 min.<ref name="PowersRabinstein2019" />
*[[Hyperglycemia]] should be treated during the first 24 hours after [[ischemic stroke]], to achieve values of 140 to 180 mg/dL.<ref name="PowersRabinstein2019" />
*[[Hyperglycemia]] should be treated during the first 24 hours after [[ischemic stroke]], to achieve values of 140 to 180 mg/dL.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] should be iniciated as soon as possible, having been demostrated better outcomes the sooner is administered.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] should be initiated as soon as possible, having been demonstrated better outcomes the sooner is administered.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] may cause bleeding and [[angioedema]].<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] may cause bleeding and [[angioedema]].<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] (0.9 mg/kg, maximum dose 90 mg over 60 minutes with initial 10% of dose given as [[bolus]] over 1 minute) is recommended for selected patients who can be treated within 3-4.5 hours of [[ischemic stroke]] [[symptom]] [[onset]] or patient last known well or at [[Baseline (medicine)|baseline]] state.<ref name="LeesEmberson2016">{{cite journal|last1=Lees|first1=Kennedy R.|last2=Emberson|first2=Jonathan|last3=Blackwell|first3=Lisa|last4=Bluhmki|first4=Erich|last5=Davis|first5=Stephen M.|last6=Donnan|first6=Geoffrey A.|last7=Grotta|first7=James C.|last8=Kaste|first8=Markku|last9=von Kummer|first9=Rüdiger|last10=Lansberg|first10=Maarten G.|last11=Lindley|first11=Richard I.|last12=Lyden|first12=Patrick|last13=Murray|first13=Gordon D.|last14=Sandercock|first14=Peter A.G.|last15=Toni|first15=Danilo|last16=Toyoda|first16=Kazunori|last17=Wardlaw|first17=Joanna M.|last18=Whiteley|first18=William N.|last19=Baigent|first19=Colin|last20=Hacke|first20=Werner|last21=Howard|first21=George|last22=Marler|first22=John|last23=Halls|first23=Heather|last24=Holland|first24=Lisa|last25=Mathews|first25=Clare|last26=Smith|first26=Samantha|last27=Wilson|first27=Kate|last28=Koga|first28=Masatoshi|last29=Albers|first29=Gregory|last30=Brott|first30=Thomas|last31=Cohen|first31=Geoffrey|last32=Koga|first32=Masatoshi|last33=Olivot|first33=Jean Marc|last34=Parsons|first34=Mark|last35=Tilley|first35=Barbara|last36=Wahlgren|first36=Nils|last37=del Zoppo|first37=Gregory J|title=Effects of Alteplase for Acute Stroke on the Distribution of Functional Outcomes|journal=Stroke|volume=47|issue=9|year=2016|pages=2373–2379|issn=0039-2499|doi=10.1161/STROKEAHA.116.013644}}</ref><ref name="PowersRabinstein2019" /><ref>{{cite journal|title=The benefits and harms of intravenous thrombolysis with recombinant tissue plasminogen activator within 6 h of acute ischaemic stroke (the third international stroke trial [IST-3]): a randomised controlled trial|journal=The Lancet|volume=379|issue=9834|year=2012|pages=2352–2363|issn=01406736|doi=10.1016/S0140-6736(12)60768-5}}</ref>
*[[Alteplase|IV alteplase]] (0.9 mg/kg, maximum dose 90 mg over 60 minutes with initial 10% of dose given as [[bolus]] over 1 minute) is recommended for selected patients who can be treated within 3-4.5 hours of [[ischemic stroke]] [[symptom]] [[onset]] or patient last known well or at [[Baseline (medicine)|baseline]] state.<ref name="LeesEmberson2016">{{cite journal|last1=Lees|first1=Kennedy R.|last2=Emberson|first2=Jonathan|last3=Blackwell|first3=Lisa|last4=Bluhmki|first4=Erich|last5=Davis|first5=Stephen M.|last6=Donnan|first6=Geoffrey A.|last7=Grotta|first7=James C.|last8=Kaste|first8=Markku|last9=von Kummer|first9=Rüdiger|last10=Lansberg|first10=Maarten G.|last11=Lindley|first11=Richard I.|last12=Lyden|first12=Patrick|last13=Murray|first13=Gordon D.|last14=Sandercock|first14=Peter A.G.|last15=Toni|first15=Danilo|last16=Toyoda|first16=Kazunori|last17=Wardlaw|first17=Joanna M.|last18=Whiteley|first18=William N.|last19=Baigent|first19=Colin|last20=Hacke|first20=Werner|last21=Howard|first21=George|last22=Marler|first22=John|last23=Halls|first23=Heather|last24=Holland|first24=Lisa|last25=Mathews|first25=Clare|last26=Smith|first26=Samantha|last27=Wilson|first27=Kate|last28=Koga|first28=Masatoshi|last29=Albers|first29=Gregory|last30=Brott|first30=Thomas|last31=Cohen|first31=Geoffrey|last32=Koga|first32=Masatoshi|last33=Olivot|first33=Jean Marc|last34=Parsons|first34=Mark|last35=Tilley|first35=Barbara|last36=Wahlgren|first36=Nils|last37=del Zoppo|first37=Gregory J|title=Effects of Alteplase for Acute Stroke on the Distribution of Functional Outcomes|journal=Stroke|volume=47|issue=9|year=2016|pages=2373–2379|issn=0039-2499|doi=10.1161/STROKEAHA.116.013644}}</ref><ref name="PowersRabinstein2019" /><ref>{{cite journal|title=The benefits and harms of intravenous thrombolysis with recombinant tissue plasminogen activator within 6 h of acute ischaemic stroke (the third international stroke trial [IST-3]): a randomised controlled trial|journal=The Lancet|volume=379|issue=9834|year=2012|pages=2352–2363|issn=01406736|doi=10.1016/S0140-6736(12)60768-5}}</ref>
*[[Glycoprotein IIb/IIIa inhibitors]] ([[Tirofiban detailed information|tirofiban]], [[apiximab]], [[eptifibatide]]) should not be coadministered with [[Alteplase|IV alteplase]].<ref name="PowersRabinstein2019" /><ref name="AdeoyeSucharew2015">{{cite journal|last1=Adeoye|first1=Opeolu|last2=Sucharew|first2=Heidi|last3=Khoury|first3=Jane|last4=Tomsick|first4=Thomas|last5=Khatri|first5=Pooja|last6=Palesch|first6=Yuko|last7=Schmit|first7=Pamela A.|last8=Pancioli|first8=Arthur M.|last9=Broderick|first9=Joseph P.|title=Recombinant Tissue-Type Plasminogen Activator Plus Eptifibatide Versus Recombinant Tissue-Type Plasminogen Activator Alone in Acute Ischemic Stroke|journal=Stroke|volume=46|issue=2|year=2015|pages=461–464|issn=0039-2499|doi=10.1161/STROKEAHA.114.006743}}</ref>
*[[Glycoprotein IIb/IIIa inhibitors]] ([[Tirofiban detailed information|tirofiban]], [[apiximab]], [[eptifibatide]]) should not be coadministered with [[Alteplase|IV alteplase]].<ref name="PowersRabinstein2019" /><ref name="AdeoyeSucharew2015">{{cite journal|last1=Adeoye|first1=Opeolu|last2=Sucharew|first2=Heidi|last3=Khoury|first3=Jane|last4=Tomsick|first4=Thomas|last5=Khatri|first5=Pooja|last6=Palesch|first6=Yuko|last7=Schmit|first7=Pamela A.|last8=Pancioli|first8=Arthur M.|last9=Broderick|first9=Joseph P.|title=Recombinant Tissue-Type Plasminogen Activator Plus Eptifibatide Versus Recombinant Tissue-Type Plasminogen Activator Alone in Acute Ischemic Stroke|journal=Stroke|volume=46|issue=2|year=2015|pages=461–464|issn=0039-2499|doi=10.1161/STROKEAHA.114.006743}}</ref>
*[[Alteplase|IV alteplase]] may be used in patients under warfarin if the [[INR]] is lower than1.7.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] may be used in patients under warfarin if the [[INR]] is lower than 1.7.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] should not be administered to patients who have received a full dose of [[low-molecular-weight heparin]] within the previous 24 hours (including [[Prophylaxis|prophylactic]] doses).<ref name="PowersRabinstein2019" /><ref name="PowersDerdeyn2015">{{cite journal|last1=Powers|first1=William J.|last2=Derdeyn|first2=Colin P.|last3=Biller|first3=José|last4=Coffey|first4=Christopher S.|last5=Hoh|first5=Brian L.|last6=Jauch|first6=Edward C.|last7=Johnston|first7=Karen C.|last8=Johnston|first8=S. Claiborne|last9=Khalessi|first9=Alexander A.|last10=Kidwell|first10=Chelsea S.|last11=Meschia|first11=James F.|last12=Ovbiagele|first12=Bruce|last13=Yavagal|first13=Dileep R.|title=2015 American Heart Association/American Stroke Association Focused Update of the 2013 Guidelines for the Early Management of Patients With Acute Ischemic Stroke Regarding Endovascular Treatment|journal=Stroke|volume=46|issue=10|year=2015|pages=3020–3035|issn=0039-2499|doi=10.1161/STR.0000000000000074}}</ref>
*[[Alteplase|IV alteplase]] should not be administered to patients who have received a full dose of [[low-molecular-weight heparin]] within the previous 24 hours (including [[Prophylaxis|prophylactic]] doses).<ref name="PowersRabinstein2019" /><ref name="PowersDerdeyn2015">{{cite journal|last1=Powers|first1=William J.|last2=Derdeyn|first2=Colin P.|last3=Biller|first3=José|last4=Coffey|first4=Christopher S.|last5=Hoh|first5=Brian L.|last6=Jauch|first6=Edward C.|last7=Johnston|first7=Karen C.|last8=Johnston|first8=S. Claiborne|last9=Khalessi|first9=Alexander A.|last10=Kidwell|first10=Chelsea S.|last11=Meschia|first11=James F.|last12=Ovbiagele|first12=Bruce|last13=Yavagal|first13=Dileep R.|title=2015 American Heart Association/American Stroke Association Focused Update of the 2013 Guidelines for the Early Management of Patients With Acute Ischemic Stroke Regarding Endovascular Treatment|journal=Stroke|volume=46|issue=10|year=2015|pages=3020–3035|issn=0039-2499|doi=10.1161/STR.0000000000000074}}</ref>
*[[Blood pressure]] should be sustained lower than 180/105 mmHg the first 24 hours after [[Alteplase|IV alteplase]] administration. Intensive lowering has been shown to be safe.<ref name="PowersRabinstein2019" /><ref name="AndersonHuang2019">{{cite journal|last1=Anderson|first1=Craig S|last2=Huang|first2=Yining|last3=Lindley|first3=Richard I|last4=Chen|first4=Xiaoying|last5=Arima|first5=Hisatomi|last6=Chen|first6=Guofang|last7=Li|first7=Qiang|last8=Billot|first8=Laurent|last9=Delcourt|first9=Candice|last10=Bath|first10=Philip M|last11=Broderick|first11=Joseph P|last12=Demchuk|first12=Andrew M|last13=Donnan|first13=Geoffrey A|last14=Durham|first14=Alice C|last15=Lavados|first15=Pablo M|last16=Lee|first16=Tsong-Hai|last17=Levi|first17=Christopher|last18=Martins|first18=Sheila O|last19=Olavarria|first19=Veronica V|last20=Pandian|first20=Jeyaraj D|last21=Parsons|first21=Mark W|last22=Pontes-Neto|first22=Octavio M|last23=Ricci|first23=Stefano|last24=Sato|first24=Shoichiro|last25=Sharma|first25=Vijay K|last26=Silva|first26=Federico|last27=Song|first27=Lili|last28=Thang|first28=Nguyen H|last29=Wardlaw|first29=Joanna M|last30=Wang|first30=Ji-Guang|last31=Wang|first31=Xia|last32=Woodward|first32=Mark|last33=Chalmers|first33=John|last34=Robinson|first34=Thompson G|last35=Anderson|first35=Craig S.|last36=Huang|first36=Yining|last37=Lindley|first37=Richard I.|last38=Chen|first38=Xiaoying|last39=Arima|first39=Hisatomi|last40=Chen|first40=Guofang|last41=Li|first41=Qiang|last42=Billot|first42=Laurent|last43=Delcourt|first43=Candice|last44=Bath|first44=Philip M.|last45=Broderick|first45=Joseph P.|last46=Demchuk|first46=Andrew M.|last47=Donnan|first47=Geoffrey A.|last48=Durham|first48=Alice C.|last49=Lavados|first49=Pablo M.|last50=Lee|first50=Tsong-Hai|last51=Levi|first51=Christopher|last52=Martins|first52=Sheila O.|last53=Olavarria|first53=Veronica V.|last54=Pandian|first54=Jeyaraj D.|last55=Parsons|first55=Mark W.|last56=Pontes-Neto|first56=Octavio M.|last57=Ricci|first57=Stefano|last58=Sato|first58=Shoichiro|last59=Sharma|first59=Vijay K.|last60=Silva|first60=Federico|last61=Song|first61=Lili|last62=Thang|first62=Nguyen H.|last63=Wardlaw|first63=Joanna M.|last64=Wang|first64=Ji-Guang|last65=Wang|first65=Xia|last66=Woodward|first66=Mark|last67=Chalmers|first67=John|last68=Robinson|first68=Thompson G.|last69=Kim|first69=Jong S.|last70=Stapf|first70=Christian|last71=Simes|first71=R. 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Huy|first632=T.|last633=Le Tuan|first633=A. Truong|last634=Cam|first634=L. Dam Thi|last635=Kim|first635=T. Ngo Thi|last636=Nguyen|first636=B. Pham|last637=Dat|first637=A. Nguyen|last638=Van|first638=C. Nguyen|last639=Duy|first639=T. Mai|last640=Viet|first640=P. Dao|last641=Tien|first641=D. Nguyen|last642=Van|first642=T. Vo|last643=Le Kim|first643=K.|last644=Ngoc|first644=T. Bui|last645=Le Thanh|first645=T. Tran|last646=Hoanh|first646=S. Nguyen|last647=Phuoc|first647=S. Pham|last648=Van|first648=T. Tran|last649=Thi|first649=B. Doan|last650=Thu|first650=H. Nguyen Thi|last651=Duy|first651=M. Nguyen|last652=Van|first652=D. Ngo|title=Intensive blood pressure reduction with intravenous thrombolysis therapy for acute ischaemic stroke (ENCHANTED): an international, randomised, open-label, blinded-endpoint, phase 3 trial|journal=The Lancet|volume=393|issue=10174|year=2019|pages=877–888|issn=01406736|doi=10.1016/S0140-6736(19)30038-8}}</ref>
*[[Blood pressure]] should be sustained lower than 180/105 mmHg the first 24 hours after [[Alteplase|IV alteplase]] administration. 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Truong|last634=Cam|first634=L. Dam Thi|last635=Kim|first635=T. Ngo Thi|last636=Nguyen|first636=B. Pham|last637=Dat|first637=A. Nguyen|last638=Van|first638=C. Nguyen|last639=Duy|first639=T. Mai|last640=Viet|first640=P. Dao|last641=Tien|first641=D. Nguyen|last642=Van|first642=T. Vo|last643=Le Kim|first643=K.|last644=Ngoc|first644=T. Bui|last645=Le Thanh|first645=T. Tran|last646=Hoanh|first646=S. Nguyen|last647=Phuoc|first647=S. Pham|last648=Van|first648=T. Tran|last649=Thi|first649=B. Doan|last650=Thu|first650=H. Nguyen Thi|last651=Duy|first651=M. Nguyen|last652=Van|first652=D. Ngo|title=Intensive blood pressure reduction with intravenous thrombolysis therapy for acute ischaemic stroke (ENCHANTED): an international, randomised, open-label, blinded-endpoint, phase 3 trial|journal=The Lancet|volume=393|issue=10174|year=2019|pages=877–888|issn=01406736|doi=10.1016/S0140-6736(19)30038-8}}</ref>
* In case of [[Intracranial hemorrhage|intracranial bleeding]] due to [[alteplase]] administration, [[alteplase]] should be suspended, blood draws should be taken ([[Complete blood count|CBC]], [[coagulation studies]]), [[tranexamic acid]] should be administeered (1000 mg IV infused over 10 min), and a subsecuent non-contratested [[Computed tomography|CT scan]] of the head taken.<ref name="SloanPrice1995">{{cite journal|last1=Sloan|first1=M. A.|last2=Price|first2=T.R.|last3=Petito|first3=C. K.|last4=Randall|first4=A. M. Y.|last5=Solomon|first5=R. E.|last6=Terrin|first6=M. L.|last7=Gore|first7=J.|last8=Collen|first8=D.|last9=Kleiman|first9=N.|last10=Feit|first10=F.|last11=Babb|first11=J.|last12=Herman|first12=M.|last13=Roberts|first13=W. C.|last14=Sopko|first14=G.|last15=Bovill|first15=E.|last16=Forman|first16=S.|last17=Knatterud|first17=G. L.|title=Clinical features and pathogenesis of intracerebral hemorrhage after rt-PA and heparin therapy for acute myocardial infarction: The Thrombolysis in Myocardial Infarction (TIMI) II Pilot and Randomized Clinical Trial Combined experience|journal=Neurology|volume=45|issue=4|year=1995|pages=649–658|issn=0028-3878|doi=10.1212/WNL.45.4.649}}</ref>
* In case of [[Intracranial hemorrhage|intracranial bleeding]] due to [[alteplase]] administration, [[alteplase]] should be suspended, blood draws should be taken ([[Complete blood count|CBC]], [[coagulation studies]]), [[tranexamic acid]] should be administered (1000 mg IV infused over 10 min), and a subsecuent non-contratested [[Computed tomography|CT scan]] of the head taken.<ref name="SloanPrice1995">{{cite journal|last1=Sloan|first1=M. A.|last2=Price|first2=T.R.|last3=Petito|first3=C. K.|last4=Randall|first4=A. M. Y.|last5=Solomon|first5=R. E.|last6=Terrin|first6=M. L.|last7=Gore|first7=J.|last8=Collen|first8=D.|last9=Kleiman|first9=N.|last10=Feit|first10=F.|last11=Babb|first11=J.|last12=Herman|first12=M.|last13=Roberts|first13=W. C.|last14=Sopko|first14=G.|last15=Bovill|first15=E.|last16=Forman|first16=S.|last17=Knatterud|first17=G. L.|title=Clinical features and pathogenesis of intracerebral hemorrhage after rt-PA and heparin therapy for acute myocardial infarction: The Thrombolysis in Myocardial Infarction (TIMI) II Pilot and Randomized Clinical Trial Combined experience|journal=Neurology|volume=45|issue=4|year=1995|pages=649–658|issn=0028-3878|doi=10.1212/WNL.45.4.649}}</ref>
* The use of [[Alteplase|IV alteplase]] should be used cautiously in patients who undergone a [[major surgery]] in the past 2 weeks.<ref name="PowersRabinstein2019" />
* The use of [[Alteplase|IV alteplase]] should be used cautiously in patients who undergone a [[major surgery]] in the past 2 weeks.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] In ischemis stroke is contraindicated in patients with a severe head trauma or [[Subarachnoid hemorrhage|subarachnoid hemorrage]] in the preceeding 3 months.<ref name="PowersRabinstein2019" />
*[[Alteplase|IV alteplase]] In ischemis stroke is contraindicated in patients with a severe head trauma or [[Subarachnoid hemorrhage|subarachnoid hemorrage]] in the preceding 3 months.<ref name="PowersRabinstein2019" />


==== Tenecteplase ====
==== Tenecteplase ====


* The dose of [[tenecteplase]] is a single IV bolus of 0.25-mg/kg (maximum 25 mg).<ref name="CampbellMitchell2018">{{cite journal|last1=Campbell|first1=Bruce C.V.|last2=Mitchell|first2=Peter J.|last3=Churilov|first3=Leonid|last4=Yassi|first4=Nawaf|last5=Kleinig|first5=Timothy J.|last6=Dowling|first6=Richard J.|last7=Yan|first7=Bernard|last8=Bush|first8=Steven J.|last9=Dewey|first9=Helen M.|last10=Thijs|first10=Vincent|last11=Scroop|first11=Rebecca|last12=Simpson|first12=Marion|last13=Brooks|first13=Mark|last14=Asadi|first14=Hamed|last15=Wu|first15=Teddy Y.|last16=Shah|first16=Darshan G.|last17=Wijeratne|first17=Tissa|last18=Ang|first18=Timothy|last19=Miteff|first19=Ferdinand|last20=Levi|first20=Christopher R.|last21=Rodrigues|first21=Edrich|last22=Zhao|first22=Henry|last23=Salvaris|first23=Patrick|last24=Garcia-Esperon|first24=Carlos|last25=Bailey|first25=Peter|last26=Rice|first26=Henry|last27=de Villiers|first27=Laetitia|last28=Brown|first28=Helen|last29=Redmond|first29=Kendal|last30=Leggett|first30=David|last31=Fink|first31=John N.|last32=Collecutt|first32=Wayne|last33=Wong|first33=Andrew A.|last34=Muller|first34=Claire|last35=Coulthard|first35=Alan|last36=Mitchell|first36=Ken|last37=Clouston|first37=John|last38=Mahady|first38=Kate|last39=Field|first39=Deborah|last40=Ma|first40=Henry|last41=Phan|first41=Thanh G.|last42=Chong|first42=Winston|last43=Chandra|first43=Ronil V.|last44=Slater|first44=Lee-Anne|last45=Krause|first45=Martin|last46=Harrington|first46=Timothy J.|last47=Faulder|first47=Kenneth C.|last48=Steinfort|first48=Brendan S.|last49=Bladin|first49=Christopher F.|last50=Sharma|first50=Gagan|last51=Desmond|first51=Patricia M.|last52=Parsons|first52=Mark W.|last53=Donnan|first53=Geoffrey A.|last54=Davis|first54=Stephen M.|title=Tenecteplase versus Alteplase before Thrombectomy for Ischemic Stroke|journal=New England Journal of Medicine|volume=378|issue=17|year=2018|pages=1573–1582|issn=0028-4793|doi=10.1056/NEJMoa1716405}}</ref>
* The dose of [[tenecteplase]] is a single IV [[bolus]] of 0.25-mg/kg (maximum 25 mg).<ref name="CampbellMitchell2018">{{cite journal|last1=Campbell|first1=Bruce C.V.|last2=Mitchell|first2=Peter J.|last3=Churilov|first3=Leonid|last4=Yassi|first4=Nawaf|last5=Kleinig|first5=Timothy J.|last6=Dowling|first6=Richard J.|last7=Yan|first7=Bernard|last8=Bush|first8=Steven J.|last9=Dewey|first9=Helen M.|last10=Thijs|first10=Vincent|last11=Scroop|first11=Rebecca|last12=Simpson|first12=Marion|last13=Brooks|first13=Mark|last14=Asadi|first14=Hamed|last15=Wu|first15=Teddy Y.|last16=Shah|first16=Darshan G.|last17=Wijeratne|first17=Tissa|last18=Ang|first18=Timothy|last19=Miteff|first19=Ferdinand|last20=Levi|first20=Christopher R.|last21=Rodrigues|first21=Edrich|last22=Zhao|first22=Henry|last23=Salvaris|first23=Patrick|last24=Garcia-Esperon|first24=Carlos|last25=Bailey|first25=Peter|last26=Rice|first26=Henry|last27=de Villiers|first27=Laetitia|last28=Brown|first28=Helen|last29=Redmond|first29=Kendal|last30=Leggett|first30=David|last31=Fink|first31=John N.|last32=Collecutt|first32=Wayne|last33=Wong|first33=Andrew A.|last34=Muller|first34=Claire|last35=Coulthard|first35=Alan|last36=Mitchell|first36=Ken|last37=Clouston|first37=John|last38=Mahady|first38=Kate|last39=Field|first39=Deborah|last40=Ma|first40=Henry|last41=Phan|first41=Thanh G.|last42=Chong|first42=Winston|last43=Chandra|first43=Ronil V.|last44=Slater|first44=Lee-Anne|last45=Krause|first45=Martin|last46=Harrington|first46=Timothy J.|last47=Faulder|first47=Kenneth C.|last48=Steinfort|first48=Brendan S.|last49=Bladin|first49=Christopher F.|last50=Sharma|first50=Gagan|last51=Desmond|first51=Patricia M.|last52=Parsons|first52=Mark W.|last53=Donnan|first53=Geoffrey A.|last54=Davis|first54=Stephen M.|title=Tenecteplase versus Alteplase before Thrombectomy for Ischemic Stroke|journal=New England Journal of Medicine|volume=378|issue=17|year=2018|pages=1573–1582|issn=0028-4793|doi=10.1056/NEJMoa1716405}}</ref>
*[[Tenecteplase]] may be useful in patients with minor [[neurological]] impairment.<ref name="HuangCheripelli2015">{{cite journal|last1=Huang|first1=Xuya|last2=Cheripelli|first2=Bharath Kumar|last3=Lloyd|first3=Suzanne M|last4=Kalladka|first4=Dheeraj|last5=Moreton|first5=Fiona Catherine|last6=Siddiqui|first6=Aslam|last7=Ford|first7=Ian|last8=Muir|first8=Keith W|title=Alteplase versus tenecteplase for thrombolysis after ischaemic stroke (ATTEST): a phase 2, randomised, open-label, blinded endpoint study|journal=The Lancet Neurology|volume=14|issue=4|year=2015|pages=368–376|issn=14744422|doi=10.1016/S1474-4422(15)70017-7}}</ref>
*[[Tenecteplase]] may be useful in patients with minor [[neurological]] impairment.<ref name="HuangCheripelli2015">{{cite journal|last1=Huang|first1=Xuya|last2=Cheripelli|first2=Bharath Kumar|last3=Lloyd|first3=Suzanne M|last4=Kalladka|first4=Dheeraj|last5=Moreton|first5=Fiona Catherine|last6=Siddiqui|first6=Aslam|last7=Ford|first7=Ian|last8=Muir|first8=Keith W|title=Alteplase versus tenecteplase for thrombolysis after ischaemic stroke (ATTEST): a phase 2, randomised, open-label, blinded endpoint study|journal=The Lancet Neurology|volume=14|issue=4|year=2015|pages=368–376|issn=14744422|doi=10.1016/S1474-4422(15)70017-7}}</ref>


==== Antiplatelet therapy ====
==== Antiplatelet therapy ====


* The dose of aspirin is usually between 160-300mg daily.<ref name="pmid9174558">{{cite journal |vauthors= |title=The International Stroke Trial (IST): a randomised trial of aspirin, subcutaneous heparin, both, or neither among 19435 patients with acute ischaemic stroke. International Stroke Trial Collaborative Group |journal=Lancet |volume=349 |issue=9065 |pages=1569–81 |date=May 1997 |pmid=9174558 |doi= |url=}}</ref>
* The dose of [[aspirin]] is usually between 160-300mg daily.<ref name="pmid9174558">{{cite journal |vauthors= |title=The International Stroke Trial (IST): a randomised trial of aspirin, subcutaneous heparin, both, or neither among 19435 patients with acute ischaemic stroke. International Stroke Trial Collaborative Group |journal=Lancet |volume=349 |issue=9065 |pages=1569–81 |date=May 1997 |pmid=9174558 |doi= |url=}}</ref>
* Administration of aspirin is recommended in patients with AIS within 24 to 48 hours after onset. For those treated with [[Alteplase|IV alteplase]], aspirin administration is generally delayed until 24 hours later.<ref name="JeongKim2016">{{cite journal|last1=Jeong|first1=Han-Gil|last2=Kim|first2=Beom Joon|last3=Yang|first3=Mi Hwa|last4=Han|first4=Moon-Ku|last5=Bae|first5=Hee-Joon|last6=Lee|first6=Seung-Hoon|title=Stroke outcomes with use of antithrombotics within 24 hours after recanalization treatment|journal=Neurology|volume=87|issue=10|year=2016|pages=996–1002|issn=0028-3878|doi=10.1212/WNL.0000000000003083}}</ref>
* Administration of [[aspirin]] is recommended in patients with AIS within 24 to 48 hours after onset. For those treated with [[Alteplase|IV alteplase]], aspirin administration is generally delayed until 24 hours later.<ref name="JeongKim2016">{{cite journal|last1=Jeong|first1=Han-Gil|last2=Kim|first2=Beom Joon|last3=Yang|first3=Mi Hwa|last4=Han|first4=Moon-Ku|last5=Bae|first5=Hee-Joon|last6=Lee|first6=Seung-Hoon|title=Stroke outcomes with use of antithrombotics within 24 hours after recanalization treatment|journal=Neurology|volume=87|issue=10|year=2016|pages=996–1002|issn=0028-3878|doi=10.1212/WNL.0000000000003083}}</ref>
*IV aspirin administration within 90 minutes after the start of [[Alteplase|IV alteplase]] is associated with symptomatic intracranial hemorrhage, for which coadministration is discouraged but benefits should be assesed in each individual case.<ref name="PowersRabinstein2019" /><ref name="ZinkstokRoos2012">{{cite journal|last1=Zinkstok|first1=Sanne M|last2=Roos|first2=Yvo B|title=Early administration of aspirin in patients treated with alteplase for acute ischaemic stroke: a randomised controlled trial|journal=The Lancet|volume=380|issue=9843|year=2012|pages=731–737|issn=01406736|doi=10.1016/S0140-6736(12)60949-0}}</ref>
*[[Aspirin|IV aspirin]] administration within 90 minutes after the start of [[Alteplase|IV alteplase]] is associated with symptomatic intracranial hemorrhage, for which co administration is discouraged but benefits should be assessed in each individual case.<ref name="PowersRabinstein2019" /><ref name="ZinkstokRoos2012">{{cite journal|last1=Zinkstok|first1=Sanne M|last2=Roos|first2=Yvo B|title=Early administration of aspirin in patients treated with alteplase for acute ischaemic stroke: a randomised controlled trial|journal=The Lancet|volume=380|issue=9843|year=2012|pages=731–737|issn=01406736|doi=10.1016/S0140-6736(12)60949-0}}</ref>
* Dual antiplatelet therapy with aspirin and clopidogrel (75 mg/d, with a loading dose of 600mg) may be started within 24 hours after symptom onset and continued for 21 days in patients with no cardioembolic ischemic stroke.<ref name="JohnstonEaston2018">{{cite journal|last1=Johnston|first1=S. Claiborne|last2=Easton|first2=J. Donald|last3=Farrant|first3=Mary|last4=Barsan|first4=William|last5=Conwit|first5=Robin A.|last6=Elm|first6=Jordan J.|last7=Kim|first7=Anthony S.|last8=Lindblad|first8=Anne S.|last9=Palesch|first9=Yuko Y.|title=Clopidogrel and Aspirin in Acute Ischemic Stroke and High-Risk TIA|journal=New England Journal of Medicine|volume=379|issue=3|year=2018|pages=215–225|issn=0028-4793|doi=10.1056/NEJMoa1800410}}</ref>
*[[Dual antiplatelet therapy]] with [[aspirin]] and [[clopidogrel]] (75 mg/d, with a loading dose of 600mg) may be started within 24 hours after [[symptom]] onset and continued for 21 days in patients with no cardioembolic [[ischemic stroke]].<ref name="JohnstonEaston2018">{{cite journal|last1=Johnston|first1=S. Claiborne|last2=Easton|first2=J. Donald|last3=Farrant|first3=Mary|last4=Barsan|first4=William|last5=Conwit|first5=Robin A.|last6=Elm|first6=Jordan J.|last7=Kim|first7=Anthony S.|last8=Lindblad|first8=Anne S.|last9=Palesch|first9=Yuko Y.|title=Clopidogrel and Aspirin in Acute Ischemic Stroke and High-Risk TIA|journal=New England Journal of Medicine|volume=379|issue=3|year=2018|pages=215–225|issn=0028-4793|doi=10.1056/NEJMoa1800410}}</ref>
* Aspirin should not substitute [[Alteplase|IV alteplase]] or mechanical thrombectomy in patients eligible for these therapies.
*[[Aspirin]] should not substitute [[Alteplase|IV alteplase]] or mechanical thrombectomy in patients eligible for these therapies.


===Surgery===
===Surgery===


* Mechanical thrombectomy may be useful in selected patients with up to 24 hours of initiation of stroke.<ref name="PowersRabinstein2019" /><ref name="AlbersMarks2018">{{cite journal|last1=Albers|first1=Gregory W.|last2=Marks|first2=Michael P.|last3=Kemp|first3=Stephanie|last4=Christensen|first4=Soren|last5=Tsai|first5=Jenny P.|last6=Ortega-Gutierrez|first6=Santiago|last7=McTaggart|first7=Ryan A.|last8=Torbey|first8=Michel T.|last9=Kim-Tenser|first9=May|last10=Leslie-Mazwi|first10=Thabele|last11=Sarraj|first11=Amrou|last12=Kasner|first12=Scott E.|last13=Ansari|first13=Sameer A.|last14=Yeatts|first14=Sharon D.|last15=Hamilton|first15=Scott|last16=Mlynash|first16=Michael|last17=Heit|first17=Jeremy J.|last18=Zaharchuk|first18=Greg|last19=Kim|first19=Sun|last20=Carrozzella|first20=Janice|last21=Palesch|first21=Yuko Y.|last22=Demchuk|first22=Andrew M.|last23=Bammer|first23=Roland|last24=Lavori|first24=Philip W.|last25=Broderick|first25=Joseph P.|last26=Lansberg|first26=Maarten G.|title=Thrombectomy for Stroke at 6 to 16 Hours with Selection by Perfusion Imaging|journal=New England Journal of Medicine|volume=378|issue=8|year=2018|pages=708–718|issn=0028-4793|doi=10.1056/NEJMoa1713973}}</ref>
* Mechanical [[thrombectomy]] may be useful in selected patients with up to 24 hours of initiation of [[stroke]].<ref name="PowersRabinstein2019" /><ref name="AlbersMarks2018">{{cite journal|last1=Albers|first1=Gregory W.|last2=Marks|first2=Michael P.|last3=Kemp|first3=Stephanie|last4=Christensen|first4=Soren|last5=Tsai|first5=Jenny P.|last6=Ortega-Gutierrez|first6=Santiago|last7=McTaggart|first7=Ryan A.|last8=Torbey|first8=Michel T.|last9=Kim-Tenser|first9=May|last10=Leslie-Mazwi|first10=Thabele|last11=Sarraj|first11=Amrou|last12=Kasner|first12=Scott E.|last13=Ansari|first13=Sameer A.|last14=Yeatts|first14=Sharon D.|last15=Hamilton|first15=Scott|last16=Mlynash|first16=Michael|last17=Heit|first17=Jeremy J.|last18=Zaharchuk|first18=Greg|last19=Kim|first19=Sun|last20=Carrozzella|first20=Janice|last21=Palesch|first21=Yuko Y.|last22=Demchuk|first22=Andrew M.|last23=Bammer|first23=Roland|last24=Lavori|first24=Philip W.|last25=Broderick|first25=Joseph P.|last26=Lansberg|first26=Maarten G.|title=Thrombectomy for Stroke at 6 to 16 Hours with Selection by Perfusion Imaging|journal=New England Journal of Medicine|volume=378|issue=8|year=2018|pages=708–718|issn=0028-4793|doi=10.1056/NEJMoa1713973}}</ref>
* In patients who undergo mechanical thrombectomy,blood pressure should be maintained below 180/105 mmHg during and for 24 hours after the procedure.<ref name="PowersRabinstein2019" />
* In patients who undergo mechanical [[thrombectomy]],[[blood pressure]] should be maintained below 180/105 mmHg during and for 24 hours after the procedure.<ref name="PowersRabinstein2019" />
*Mechanical thrombectomy with stent retrievers is recommended over intraarterial fibrinolysis as first-line therapy.<ref name="PowersRabinstein2019" />
*Mechanical [[thrombectomy]] with stent retrievers is recommended over intra arterial [[fibrinolysis]] as first-line [[therapy]].<ref name="PowersRabinstein2019" />
*The usefulness of emergency carotid endarterectomy, carotid angioplasty and stenting in the abscence of an intracranial clot is not well established.<ref name="PowersRabinstein2019" />
*The usefulness of emergency carotid endarterectomy, [[carotid]] [[angioplasty]] and stenting in the absence of an intracranial clot is not well established.<ref name="PowersRabinstein2019" />


==== Mechanical thrombectomy with a stent retriever ====
==== Mechanical thrombectomy with a stent retriever ====


* Patients should receive mechanical thrombectomy with a stent retriever if they meet all the following criteria:<ref name="GoyalMenon2016">{{cite journal|last1=Goyal|first1=Mayank|last2=Menon|first2=Bijoy K|last3=van Zwam|first3=Wim H|last4=Dippel|first4=Diederik W J|last5=Mitchell|first5=Peter J|last6=Demchuk|first6=Andrew M|last7=Dávalos|first7=Antoni|last8=Majoie|first8=Charles B L M|last9=van der Lugt|first9=Aad|last10=de Miquel|first10=Maria A|last11=Donnan|first11=Geoffrey A|last12=Roos|first12=Yvo B W E M|last13=Bonafe|first13=Alain|last14=Jahan|first14=Reza|last15=Diener|first15=Hans-Christoph|last16=van den Berg|first16=Lucie A|last17=Levy|first17=Elad I|last18=Berkhemer|first18=Olvert A|last19=Pereira|first19=Vitor M|last20=Rempel|first20=Jeremy|last21=Millán|first21=Mònica|last22=Davis|first22=Stephen M|last23=Roy|first23=Daniel|last24=Thornton|first24=John|last25=Román|first25=Luis San|last26=Ribó|first26=Marc|last27=Beumer|first27=Debbie|last28=Stouch|first28=Bruce|last29=Brown|first29=Scott|last30=Campbell|first30=Bruce C V|last31=van Oostenbrugge|first31=Robert J|last32=Saver|first32=Jeffrey L|last33=Hill|first33=Michael D|last34=Jovin|first34=Tudor G|title=Endovascular thrombectomy after large-vessel ischaemic stroke: a meta-analysis of individual patient data from five randomised trials|journal=The Lancet|volume=387|issue=10029|year=2016|pages=1723–1731|issn=01406736|doi=10.1016/S0140-6736(16)00163-X}}</ref>  
* Patients should receive mechanical [[thrombectomy]] with a stent retriever if they meet all the following criteria:<ref name="GoyalMenon2016">{{cite journal|last1=Goyal|first1=Mayank|last2=Menon|first2=Bijoy K|last3=van Zwam|first3=Wim H|last4=Dippel|first4=Diederik W J|last5=Mitchell|first5=Peter J|last6=Demchuk|first6=Andrew M|last7=Dávalos|first7=Antoni|last8=Majoie|first8=Charles B L M|last9=van der Lugt|first9=Aad|last10=de Miquel|first10=Maria A|last11=Donnan|first11=Geoffrey A|last12=Roos|first12=Yvo B W E M|last13=Bonafe|first13=Alain|last14=Jahan|first14=Reza|last15=Diener|first15=Hans-Christoph|last16=van den Berg|first16=Lucie A|last17=Levy|first17=Elad I|last18=Berkhemer|first18=Olvert A|last19=Pereira|first19=Vitor M|last20=Rempel|first20=Jeremy|last21=Millán|first21=Mònica|last22=Davis|first22=Stephen M|last23=Roy|first23=Daniel|last24=Thornton|first24=John|last25=Román|first25=Luis San|last26=Ribó|first26=Marc|last27=Beumer|first27=Debbie|last28=Stouch|first28=Bruce|last29=Brown|first29=Scott|last30=Campbell|first30=Bruce C V|last31=van Oostenbrugge|first31=Robert J|last32=Saver|first32=Jeffrey L|last33=Hill|first33=Michael D|last34=Jovin|first34=Tudor G|title=Endovascular thrombectomy after large-vessel ischaemic stroke: a meta-analysis of individual patient data from five randomised trials|journal=The Lancet|volume=387|issue=10029|year=2016|pages=1723–1731|issn=01406736|doi=10.1016/S0140-6736(16)00163-X}}</ref>  
*# Prestroke mRS score of 0 to 1
*# Pre[[stroke]] mRS score of 0 to 1
*# Causative occlusion of the internal carotid artery or MCA segment 1 (M1)
*# Causative occlusion of the internal carotid artery or MCA segment 1 (M1)
*# Age ≥18 years
*# Age ≥18 years
*# NIHSS score of ≥6
*#[[National Institutes of Health Stroke Scale|NIHSS]] score of ≥6
*# ASPECTS of ≥6; and
*#[[ASPECT|ASPECTS]] of ≥6; and
*# Treatment can be initiated within 6 hours of symptom onset
*#[[Treatment]] can be initiated within 6 hours of [[Symptom|symptom onset]]


==== Aspiration thrombectomy ====
==== Aspiration thrombectomy ====


* Aspiration thrombectomy has not been shown to be inferior to stent retriever.<ref name="TurkSiddiqui2019" />
* Aspiration [[thrombectomy]] has not been shown to be inferior to [[stent]] retriever.<ref name="TurkSiddiqui2019" />


* Direct aspiration thrombectomy as first-pass mechanical thrombectomy is recommended as noninferior to stent retriever for patients who meet all the following criteria:<ref name="TurkSiddiqui2019">{{cite journal|last1=Turk|first1=Aquilla S|last2=Siddiqui|first2=Adnan|last3=Fifi|first3=Johanna T|last4=De Leacy|first4=Reade A|last5=Fiorella|first5=David J|last6=Gu|first6=Eugene|last7=Levy|first7=Elad I|last8=Snyder|first8=Kenneth V|last9=Hanel|first9=Ricardo A|last10=Aghaebrahim|first10=Amin|last11=Woodward|first11=B Keith|last12=Hixson|first12=Harry R|last13=Chaudry|first13=Mohammad I|last14=Spiotta|first14=Alejandro M|last15=Rai|first15=Ansaar T|last16=Frei|first16=Donald|last17=Almandoz|first17=Josser E Delgado|last18=Kelly|first18=Mike|last19=Arthur|first19=Adam|last20=Baxter|first20=Blaise|last21=English|first21=Joey|last22=Linfante|first22=Italo|last23=Fargen|first23=Kyle M|last24=Mocco|first24=J|title=Aspiration thrombectomy versus stent retriever thrombectomy as first-line approach for large vessel occlusion (COMPASS): a multicentre, randomised, open label, blinded outcome, non-inferiority trial|journal=The Lancet|volume=393|issue=10175|year=2019|pages=998–1008|issn=01406736|doi=10.1016/S0140-6736(19)30297-1}}</ref>  
* Direct aspiration [[thrombectomy]] as first-pass mechanical [[thrombectomy]] is recommended as noninferior to stent retriever for patients who meet all the following criteria:<ref name="TurkSiddiqui2019">{{cite journal|last1=Turk|first1=Aquilla S|last2=Siddiqui|first2=Adnan|last3=Fifi|first3=Johanna T|last4=De Leacy|first4=Reade A|last5=Fiorella|first5=David J|last6=Gu|first6=Eugene|last7=Levy|first7=Elad I|last8=Snyder|first8=Kenneth V|last9=Hanel|first9=Ricardo A|last10=Aghaebrahim|first10=Amin|last11=Woodward|first11=B Keith|last12=Hixson|first12=Harry R|last13=Chaudry|first13=Mohammad I|last14=Spiotta|first14=Alejandro M|last15=Rai|first15=Ansaar T|last16=Frei|first16=Donald|last17=Almandoz|first17=Josser E Delgado|last18=Kelly|first18=Mike|last19=Arthur|first19=Adam|last20=Baxter|first20=Blaise|last21=English|first21=Joey|last22=Linfante|first22=Italo|last23=Fargen|first23=Kyle M|last24=Mocco|first24=J|title=Aspiration thrombectomy versus stent retriever thrombectomy as first-line approach for large vessel occlusion (COMPASS): a multicentre, randomised, open label, blinded outcome, non-inferiority trial|journal=The Lancet|volume=393|issue=10175|year=2019|pages=998–1008|issn=01406736|doi=10.1016/S0140-6736(19)30297-1}}</ref>  
*# Prestroke mRS score of 0 to 1;
*# Pre[[stroke]] mRS score of 0 to 1;
*# Causative occlusion of the internal carotid artery or M1;
*# Causative occlusion of the internal carotid artery or M1;
*# Age ≥18 years;
*# Age ≥18 years;
*# NIHSS score of ≥6;
*#[[National Institutes of Health Stroke Scale|NIHSS]] score of ≥6;
*# ASPECTS ≥6; and
*#[[ASPECT|ASPECTS]] ≥6; and
*# Treatment initiation within 6 hours of symptom onset.
*#[[Treatment]] initiation within 6 hours of symptom onset.


==== Intraarterial fibrinolysis ====
==== Intra arterial fibrinolysis ====


* Intra-arterial fibrinolysis mat be initiated within 6 hours of stroke onset in selected patients in whom IV alteplase is contraindicated.
* Intra-arterial fibrinolysis may be initiated within 6 hours of [[stroke]] onset in selected patients in whom [[Alteplase|IV alteplase]] is contraindicated.


=== Other aspects of management ===
=== Other aspects of management ===


* Volume expansors are not recommended in ischemic stroke.<ref name="PowersRabinstein2019" /><ref name="GulumaLiebeskind2015">{{cite journal|last1=Guluma|first1=Kama Z.|last2=Liebeskind|first2=David S.|last3=Raman|first3=Rema|last4=Rapp|first4=Karen S.|last5=Ernstrom|first5=Karin B.|last6=Alexandrov|first6=Andrei V.|last7=Shahripour|first7=Reza B.|last8=Barlinn|first8=Kristian|last9=Starkman|first9=Sidney|last10=Grunberg|first10=Ileana D.|last11=Hemmen|first11=Thomas M.|last12=Meyer|first12=Brett C.|last13=Alexandrov|first13=Anne W.|title=Feasibility and Safety of Using External Counterpulsation to Augment Cerebral Blood Flow in Acute Ischemic Stroke—The Counterpulsation to Upgrade Forward Flow in Stroke (CUFFS) Trial|journal=Journal of Stroke and Cerebrovascular Diseases|volume=24|issue=11|year=2015|pages=2596–2604|issn=10523057|doi=10.1016/j.jstrokecerebrovasdis.2015.07.013}}</ref>
* Volume expansors are not recommended in [[ischemic stroke]].<ref name="PowersRabinstein2019" /><ref name="GulumaLiebeskind2015">{{cite journal|last1=Guluma|first1=Kama Z.|last2=Liebeskind|first2=David S.|last3=Raman|first3=Rema|last4=Rapp|first4=Karen S.|last5=Ernstrom|first5=Karin B.|last6=Alexandrov|first6=Andrei V.|last7=Shahripour|first7=Reza B.|last8=Barlinn|first8=Kristian|last9=Starkman|first9=Sidney|last10=Grunberg|first10=Ileana D.|last11=Hemmen|first11=Thomas M.|last12=Meyer|first12=Brett C.|last13=Alexandrov|first13=Anne W.|title=Feasibility and Safety of Using External Counterpulsation to Augment Cerebral Blood Flow in Acute Ischemic Stroke—The Counterpulsation to Upgrade Forward Flow in Stroke (CUFFS) Trial|journal=Journal of Stroke and Cerebrovascular Diseases|volume=24|issue=11|year=2015|pages=2596–2604|issn=10523057|doi=10.1016/j.jstrokecerebrovasdis.2015.07.013}}</ref>
* The best head positioning after stroke is not well established.<ref name="PowersRabinstein2019" /><ref name="AndersonArima2017">{{cite journal|last1=Anderson|first1=Craig S.|last2=Arima|first2=Hisatomi|last3=Lavados|first3=Pablo|last4=Billot|first4=Laurent|last5=Hackett|first5=Maree L.|last6=Olavarría|first6=Verónica V.|last7=Muñoz Venturelli|first7=Paula|last8=Brunser|first8=Alejandro|last9=Peng|first9=Bin|last10=Cui|first10=Liying|last11=Song|first11=Lily|last12=Rogers|first12=Kris|last13=Middleton|first13=Sandy|last14=Lim|first14=Joyce Y.|last15=Forshaw|first15=Denise|last16=Lightbody|first16=C. Elizabeth|last17=Woodward|first17=Mark|last18=Pontes-Neto|first18=Octavio|last19=De Silva|first19=H. Asita|last20=Lin|first20=Ruey-Tay|last21=Lee|first21=Tsong-Hai|last22=Pandian|first22=Jeyaraj D.|last23=Mead|first23=Gillian E.|last24=Robinson|first24=Thompson|last25=Watkins|first25=Caroline|title=Cluster-Randomized, Crossover Trial of Head Positioning in Acute Stroke|journal=New England Journal of Medicine|volume=376|issue=25|year=2017|pages=2437–2447|issn=0028-4793|doi=10.1056/NEJMoa1615715}}</ref>
* The best head positioning after stroke is not well established.<ref name="PowersRabinstein2019" /><ref name="AndersonArima2017">{{cite journal|last1=Anderson|first1=Craig S.|last2=Arima|first2=Hisatomi|last3=Lavados|first3=Pablo|last4=Billot|first4=Laurent|last5=Hackett|first5=Maree L.|last6=Olavarría|first6=Verónica V.|last7=Muñoz Venturelli|first7=Paula|last8=Brunser|first8=Alejandro|last9=Peng|first9=Bin|last10=Cui|first10=Liying|last11=Song|first11=Lily|last12=Rogers|first12=Kris|last13=Middleton|first13=Sandy|last14=Lim|first14=Joyce Y.|last15=Forshaw|first15=Denise|last16=Lightbody|first16=C. Elizabeth|last17=Woodward|first17=Mark|last18=Pontes-Neto|first18=Octavio|last19=De Silva|first19=H. Asita|last20=Lin|first20=Ruey-Tay|last21=Lee|first21=Tsong-Hai|last22=Pandian|first22=Jeyaraj D.|last23=Mead|first23=Gillian E.|last24=Robinson|first24=Thompson|last25=Watkins|first25=Caroline|title=Cluster-Randomized, Crossover Trial of Head Positioning in Acute Stroke|journal=New England Journal of Medicine|volume=376|issue=25|year=2017|pages=2437–2447|issn=0028-4793|doi=10.1056/NEJMoa1615715}}</ref>


* Supplemental oxygen and mechanical ventilation support should be provided when necessary to maintain oxygen saturation higher than 93%.<ref name="PowersRabinstein2019" /><ref name="RoffeNevatte2017">{{cite journal|last1=Roffe|first1=Christine|last2=Nevatte|first2=Tracy|last3=Sim|first3=Julius|last4=Bishop|first4=Jon|last5=Ives|first5=Natalie|last6=Ferdinand|first6=Phillip|last7=Gray|first7=Richard|title=Effect of Routine Low-Dose Oxygen Supplementation on Death and Disability in Adults With Acute Stroke|journal=JAMA|volume=318|issue=12|year=2017|pages=1125|issn=0098-7484|doi=10.1001/jama.2017.11463}}</ref>
* Supplemental [[oxygen]] and [[mechanical ventilation]] support should be provided when necessary to maintain [[oxygen saturation]] higher than 93%.<ref name="PowersRabinstein2019" /><ref name="RoffeNevatte2017">{{cite journal|last1=Roffe|first1=Christine|last2=Nevatte|first2=Tracy|last3=Sim|first3=Julius|last4=Bishop|first4=Jon|last5=Ives|first5=Natalie|last6=Ferdinand|first6=Phillip|last7=Gray|first7=Richard|title=Effect of Routine Low-Dose Oxygen Supplementation on Death and Disability in Adults With Acute Stroke|journal=JAMA|volume=318|issue=12|year=2017|pages=1125|issn=0098-7484|doi=10.1001/jama.2017.11463}}</ref>


*Sources of hyperthermia (>38°C) should be identified and treated with antipyretics in patients with stroke.<ref name="PowersRabinstein2019" /><ref name="SaxenaYoung2015">{{cite journal|last1=Saxena|first1=Manoj|last2=Young|first2=Paul|last3=Pilcher|first3=David|last4=Bailey|first4=Michael|last5=Harrison|first5=David|last6=Bellomo|first6=Rinaldo|last7=Finfer|first7=Simon|last8=Beasley|first8=Richard|last9=Hyam|first9=Jonathan|last10=Menon|first10=David|last11=Rowan|first11=Kathryn|last12=Myburgh|first12=John|title=Early temperature and mortality in critically ill patients with acute neurological diseases: trauma and stroke differ from infection|journal=Intensive Care Medicine|volume=41|issue=5|year=2015|pages=823–832|issn=0342-4642|doi=10.1007/s00134-015-3676-6}}</ref>
*Sources of [[hyperthermia]] (>38°C) should be identified and treated with [[Antipyretic|antipyretics]] in patients with [[stroke]].<ref name="PowersRabinstein2019" /><ref name="SaxenaYoung2015">{{cite journal|last1=Saxena|first1=Manoj|last2=Young|first2=Paul|last3=Pilcher|first3=David|last4=Bailey|first4=Michael|last5=Harrison|first5=David|last6=Bellomo|first6=Rinaldo|last7=Finfer|first7=Simon|last8=Beasley|first8=Richard|last9=Hyam|first9=Jonathan|last10=Menon|first10=David|last11=Rowan|first11=Kathryn|last12=Myburgh|first12=John|title=Early temperature and mortality in critically ill patients with acute neurological diseases: trauma and stroke differ from infection|journal=Intensive Care Medicine|volume=41|issue=5|year=2015|pages=823–832|issn=0342-4642|doi=10.1007/s00134-015-3676-6}}</ref>
* Hypoglycemia (<60 mg/dL) should be treated in the acute setting in patients with ischemic stroke.<ref name="PowersRabinstein2019" />
*[[Hypoglycemia]] (<60 mg/dL) should be treated in the acute setting in patients with [[ischemic stroke]].<ref name="PowersRabinstein2019" />
*Blood pressure ≥220/120 in patients who did not receive TPA should be treated within the first 48 to 72 hours after the onset of ischemic stroke.<ref name="SchraderLüders2003">{{cite journal|last1=Schrader|first1=Joachim|last2=Lüders|first2=Stephan|last3=Kulschewski|first3=Anke|last4=Berger|first4=Jürgen|last5=Zidek|first5=Walter|last6=Treib|first6=Johannes|last7=Einhäupl|first7=Karl|last8=Diener|first8=Hans Christoph|last9=Dominiak|first9=Peter|title=The ACCESS Study|journal=Stroke|volume=34|issue=7|year=2003|pages=1699–1703|issn=0039-2499|doi=10.1161/01.STR.0000075777.18006.89}}</ref>
*[[Blood pressure]] ≥220/120 in patients who did not receive [[Tissue plasminogen activator|TPA]] should be treated within the first 48 to 72 hours after the onset of [[ischemic stroke]].<ref name="SchraderLüders2003">{{cite journal|last1=Schrader|first1=Joachim|last2=Lüders|first2=Stephan|last3=Kulschewski|first3=Anke|last4=Berger|first4=Jürgen|last5=Zidek|first5=Walter|last6=Treib|first6=Johannes|last7=Einhäupl|first7=Karl|last8=Diener|first8=Hans Christoph|last9=Dominiak|first9=Peter|title=The ACCESS Study|journal=Stroke|volume=34|issue=7|year=2003|pages=1699–1703|issn=0039-2499|doi=10.1161/01.STR.0000075777.18006.89}}</ref>
*Enteral feeding should be started within 7 days of admission after an acute stroke when there is no contraindications.<ref name="pmid16409880">{{cite journal |vauthors=Dennis M, Lewis S, Cranswick G, Forbes J |title=FOOD: a multicentre randomised trial evaluating feeding policies in patients admitted to hospital with a recent stroke |journal=Health Technol Assess |volume=10 |issue=2 |pages=iii–iv, ix–x, 1–120 |date=January 2006 |pmid=16409880 |doi=10.3310/hta10020 |url=}}</ref>
*[[Enteral feeding]] should be started within 7 days of admission after an acute [[stroke]] when there is no [[Contraindication|contraindications]].<ref name="pmid16409880">{{cite journal |vauthors=Dennis M, Lewis S, Cranswick G, Forbes J |title=FOOD: a multicentre randomised trial evaluating feeding policies in patients admitted to hospital with a recent stroke |journal=Health Technol Assess |volume=10 |issue=2 |pages=iii–iv, ix–x, 1–120 |date=January 2006 |pmid=16409880 |doi=10.3310/hta10020 |url=}}</ref>
*Psychological screening is always recommended to exclude poststroke depression.<ref name="MeaderMoe-Byrne2013">{{cite journal|last1=Meader|first1=N.|last2=Moe-Byrne|first2=T.|last3=Llewellyn|first3=A.|last4=Mitchell|first4=A. J.|title=Screening for poststroke major depression: a meta-analysis of diagnostic validity studies|journal=Journal of Neurology, Neurosurgery & Psychiatry|volume=85|issue=2|year=2013|pages=198–206|issn=0022-3050|doi=10.1136/jnnp-2012-304194}}</ref>
*[[Psychological]] screening is always recommended to exclude poststroke depression.<ref name="MeaderMoe-Byrne2013">{{cite journal|last1=Meader|first1=N.|last2=Moe-Byrne|first2=T.|last3=Llewellyn|first3=A.|last4=Mitchell|first4=A. J.|title=Screening for poststroke major depression: a meta-analysis of diagnostic validity studies|journal=Journal of Neurology, Neurosurgery & Psychiatry|volume=85|issue=2|year=2013|pages=198–206|issn=0022-3050|doi=10.1136/jnnp-2012-304194}}</ref>
*Early rehabilitation in patients with stroke is adviced.<ref name="PowersRabinstein2019" />
*Early [[Rehabilitation counseling|rehabilitation]] in patients with [[stroke]] is adviced.<ref name="PowersRabinstein2019" />


=== Primary Prevention ===
=== Primary Prevention ===


*There are no established measures for the primary prevention of COVID-19 associated stroke.
*[[Smoking cessation]] should be highly encouraged in patients who suffered from [[stroke]], behavioral interventions and [[Nicotine replacement therapy|nicotine replacement]] may be necessary.
*Smoking cessation should be highly encouraged in patients who suffered from stroke, behavioral interventions and nicotine replacement may be necessary.


===Secondary Prevention===
===Secondary Prevention===
*There are no established measures for the secondary prevention of COVID-19 associated stroke.
*There are no established measures for the [[secondary prevention]] of [[COVID-19]] associated stroke.


==References==
==References==

Revision as of 16:51, 12 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Parul Pahal, M.B.B.S[2], Moises Romo M.D.

Synonyms and keywords: COVID-19, SARS-CoV-2, stroke, CT scan, cerebrovascular disease, TPA, alteplase

Overview

Cerebral hemorrhage or ischemia disrupts cerebral perfusion and can lead to an acute neurologic condition, stroke. It is one of the neurological complications of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, and is reported in critically ill Coronavirus Disease 2019 (COVID-19). COVID-19, is a pandemic, caused by a novel coronavirus, SARS-CoV-2. This rapidly spreading acute illness is commonly marked by symptoms like fever, cough, and shortness of breath, that can progress to severe respiratory complications and death. However, various non-pulmonary features are reported as the COVID-19 understanding is unfolding with the spike of cases and continuously rising number of cases globally. Stroke is one of the complication more commonly seen in severe COVID-19 patients, and was first reported in a retrospective study published in February 2020. The incidence is higher in younger men with no pre-existing neurological condition. The prognosis of COVID-19 patients presenting with stroke is very poor, based on the reported cases and studies published so far.


Historical Perspective

Neurological symptoms in Coronavirus disease 2019 (COVID-19) patients were first reported in February 2020 in a retrospective case series study by Mao L. et al. in hospitalized COVID-19 patients in Wuhan, China. Ling Mao from Tongji Medical College in Wuhan, and his group reviewed the data retrospectively from January 16, 2020, to February 19, 2020. One third of the 214 hospitalized laboratory- confirmed COVID-19 patients included in this study reported at least one neurologic symptom. The symptoms range from non-specific symptoms like headache, myalgia, fatigue, to more specific symptoms like seizure, coma, and acute cerebrovascular disease. However, incidence of acute cerebrovascular disease or stroke was higher in severe cases of COVID-19.[1]


Classification

There is no specific classification established for 'Stroke in COVID-19 patients'. It is same as the general classification of stroke.

Stroke can be classified into


Pathophysiology

The most common type of stroke in patients with COVID-19 is ischemic.[2]

The exact pathophysiology of 'stroke in COVID-19' is not fully understood. However, it is thought that stroke in COVID-19 could be due to one of the following pathophysiologies-

  • Sepsis induced coagulopathy in COVID-19 patients is thought to be contributing to microthromobosis. This is supported by elevation of D-dimer and C-reactive protein, which are hypercoagulability and inflammatory markers, in COVID-19 positive patients.
  • The angiotensin-converting enzyme II (ACEII) receptors are also present on the vascular endothelial cells and neural cells in the brain . These receptors expressed in the brain are responsible for sympathoadrenal system regulation, and vascular autoregulation[3]. When the virus binds to these receptors, this vascular autoregulation is hampered and can lead to elevated blood pressure, eventually leading to rupture of the cerebral vessels and intracranial hemorrhage[4]. It does so by altering the balance of renin-angiotensin system which likely triggers endothelium dysfunction, organ damage, which eventually results in stroke[5].
  • Viral Neurotropism and Neuroinvasion is another possible pathogenic mechanism for cerebrovascular accidents in COVID-19 patients. The coronaviruses usually cause mild respiratory illness, but the beta coronavirues are known to have a role in nervous system involvement[6]. The Novel coronavirus “severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)” is a beta coronavirus, similar to severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV)[7]. It,therefore, has infection mechanism and potential to invade the nervous system, similar to SARS-Cov and MERS-Cov[8]. The detection of virus in the cells of the brain on autopsy[9] (neural and capillary endothelial cells), and viral presence in the cerebrospinal fluid of the encephalitis patient infected with SARS-Cov-2[10] supports the neuro-invasiveness of the virus. The two possible routes are retrograde axonal transport (via nasal cavity) or hematogenous spread (via blood brain barrier endothelial cells)[9]. Once the virus reaches the brain, it attaches with the ACE II receptors.
  • Direct entry into brain tissues from cribriform plate to brain[11]. This is one of the proposed mechanism as COVID-19 positive patients also presented with anosmia and hyposmia which possibly occurs due to viral effect on olfactory bulb, which is in close proximity to cribriform plate[1]

Further investigations should be done to better understand the mechanism of Stroke in patients with COVID-19.

Causes

Coronavirus disease 2019 (COVID-19) associated stroke is caused by SARS-CoV-2.


Differentiating COVID-19-associated stroke from other Diseases

Stroke associated with COVID-19 should be differentiated from other diseases that can have similar presentation as stroke. These include-


Stroke in COVID-19 positive patients vs. Stroke in non-COVID-19 patients:

A retrospective cohort study (15th March,2020 to 19th April,2020) conducted by Yaghi et. al. in hospitalized patients in New York Healthcare systems compared stroke characteristics in patients with and without COVID-19[12]. This study included 3,556 COVID-19 positive patients, out of which 32 patients were diagnosed with ischemic stroke based on imaging. These COVID-19 positive stroke patients were then compared with 46 hospitalized stroke patients without COVID-19. Based on findings of this study-

    • Younger patient population (average age-63 years) as compared to relatively older patient population (average age-70 years) in non-COVID-19 patients.
    • Severe stroke (National Institutes of Health Stroke Scale- average score 19) as compared to non-COVID patients with lesser average score (8) seen on National Institutes of Health Stroke Scale
    • Higher D-dimer levels which point towards severe blood clotting (10,000 in this study). Relatively lower D-dimer levels (525 in this study) were seen in non-COVID patients.
    • Mostly Cryptogenic stroke seen in COVID-19 patients.
    • Increased mortality seen in COVID-19 patients.
    • Most of COVID-19 patients did not have any history of prior stroke (only 3.1% reported stroke history) as opposed to non-COVID patient group in which prior history of stroke was reported in 13%.
    • Non-COVID patients were more likely to have higher blood pressure levels.

Further studies are going on to understand the clinical characteristics specific to stroke in COVID-19 patients. It has been observed that the findings vary in different countries possibly due to racial/ethnicity variations. Since strokes have been reported in critically ill COVID-19 patients, hence, it is difficult to diagnose stroke in intubated and sedated COVID-19 patients.


Stroke in COVID-19 positive patients vs. Stroke in Influenza patients:

Out of 1916 COVID-19 patients (Emergency Department visits or were hospitalized with COVID-19) in retrospective cohort study which included patients from two academic hospitals in New York, 31 patients (1.6%) with median age 69 years, experienced acute ischemic stroke. The majority of these patients were men (58%). 8 patients (26%] had initial presentation as stroke while 23 had stroke over the course of the disease after testing positive for COVID-19.

Based on this study, the COVID-19 patients have much higher incidence of stroke when compared to influenza patients.[13]

Epidemiology and Demographics

The incidence of stroke in COVID-19 varies significantly depending on the study population.

Prevalence of stroke in patients with COVID-19
Date of publication Country Author Number of patients Severe infection Neurological symptoms Acute Cerebrovascular disease Ischemic/Hemorrhagic Stroke
April 10, 2020 Wuhan, China Mao et al.[1] 214 88 patients (41.1%), Mean age-58.2 years 78 patients (36.4%) 5 among severe [5.7%] infection group vs 1 [0.8%]) in non-severe group Ischemic-4, Hemorrhagic-1
May 29, 2020 Wuhan, China Qin et al.[14] (Retrospective cohort study) 1875 461 severe on admission 50 patients ie. 15 among severe and 35 among mild on admission (Median age-70 years), 30 males and 20 females Ischemic-90%, Hemorrhagic-10%
May 20, 2020 New York Yaghi et al.[12] (Retrospective cohort study) 3556 Stroke at the time of admission-14/32 (43.8%), eventually developed stroke during hospitalization-18 (56.2%) 32 patients (0.9%) Ischemic stroke- 32
April 28, 2020 New York city Oxley et al.[15] 5 Large vessel stroke-5, Mean age-<50 years
July 12, 2020 New York Valderrama et al. 1 (52-year old male) Ischemic stroke



  • The incidence of stroke in hospitalized COVID-19 patients is reported to be 0.9–2%[16].majority of them being ischemic subtype. The mortality in COVID-19 positive stroke patients is reported to be 39%[1].
  • The ischemic stroke prevalence in COVID-19 patients is 1.6%.[16]
  • A New York study published in May reported that the proportion of these strokes seem to be higher in younger men.[12] Most of these strokes are large vessel ischemic strokes and are catastrophic.
  • In a retrospective observational case series of six stroke patients in a hospital in Italy, with lab confirmed COVID-19, the median age reported was 69 years. Ischemic stroke subtype was seen in 4 patients(67%) as compared to hemorrhagic which was only seen in 2 patients (33%). Vascular risk factors were seen in 5/6 patients, which included diabetes mellitus, arterial hypertension
  • In a single center retrospective study conducted in Wuhan by Qin C. et al. which included 1875 laboratory-confirmed COVID-19 patients from january 27th, 2020, to March 5th, 2020, 50 patients had history of stroke. The median age of this study group was 63 years, with stroke patients relatively older(70 years) when compared to non-stroke patients (62 years).[14]


Stroke is one of the neurological manifestations in patients with severe infection. There is limited information on COVID-19 patients with stroke who survived.

Risk Factors

Stroke in COVID-19 infected patients is seen in relatively young patients as compared to with non COVID-19 patients.

COVID-19 associated stroke in severe patients. This includes older population with comorbidities like diabetes, hypertension, etc. However, due to disparities in the stroke prevalence in different studies, no clear association has been established.

Screening

There is insufficient evidence to recommend routine screening for stroke in COVID-19 patients. However, if the patient presents with stroke, COVID-19 screening should be done.

Natural History, Complications, and Prognosis

Prognosis is generally poor for COVID-19 patients with stroke. A study reported a high proportion of these patients were admitted to the Intensive Care Unit(ICU) and required mechanical ventilation. The mortality of COVID-19 patients with stroke was much higher when compared to COVID-19 patients with no history of stroke[14].

Cerebral hemorrhage or ischemia disrupts cerebral perfusion and can lead to an acute neurologic condition, stroke. It is one of the neurological complications of SARS-Cov-2 infection, and is seen in critically ill COVID-19 patients. 5% of hospitalized COVID-19 patients with severe illness had acute stroke, with majority of patients with Ischemic stroke. The severe and critically ill patients when compared to moderate cases, had increased hypercoagulability and inflammatory markers. These patients are at higher risk for stroke. The better outcomes in critically ill patients who received prophylactic thrombolytic therapy points towards a possibility of hypercoagulability associated with COVID-19.[1]

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Patient no. Onset of neurologic symptoms
Age and Gender
Neurologic Signs & Symptoms
1 On Admission 73-year old, Male Respiratory distress, fever, and altered mental status [20]
2 On Admission 83-year old, Female Fever, slurring of speech, facial droop, and reduced oral intake [20]
3 On Admission 80-year old female Left sided weakness, altered mental status, one week history of frequent falls [20]
4 On Admission 88-year old, Female An 15 minute episode of weakness and numbness of right arm and word finding difficulty [20]
5 On Admission 58-year old, Male Dense Right-sided weakness and acute onset aphasia [21]

Physical Examination

National Institutes of Health Stroke Scale (NIHSS)
Tested item Title Response and score
1A Level of consciousness 0—Alert
1—Drowsy
2—Obtunded
3—Coma/unresponsive
1B Orientation questions (2) 0—Answers both correctly
1—Answers 1 correctly
2—Answers neither correctly
2 Gaze 0—Normal horizontal movements
1—Partial gaze palsy
2—Complete gaze palsy
3 Visual fields 0—No visual field defect
1—Partial hemianopia
2—Complete hemianopia
3—Bilateral hemianopia
4 Facial movement 0—Normal
1—Minor facial weakness
2—Partial facial weakness
3—Complete unilateral palsy
5 Motor function (arm)

a. Left

b. Right

0—No drift
1—Drift before 10 s
2—Falls before 10 s
3—No effort against gravity
4—No movement
6 Motor function (leg)

a. Left

b. Right

0—No drift
1—Drift before 5 s
2—Falls before 5 s
3—No effort against gravity
4—No movement
7 Limb ataxia 0—No ataxia
1—Ataxia in 1 limb
2—Ataxia in 2 limbs
8 Sensory 0—No sensory loss
1—Mild sensory loss
2—Severe sensory loss
9 Language 0—Norma
1—Mild aphasia
2—Severe aphasia
3—Mute or global aphasia
10 Articulation of words 0—Norma
1—Mild dysarthria
2—Severe dysarthria
11 Extinction or inattention 0—Absent
1—Mild loss (1 sensory modality lost)
2—Severe loss (2 modalities lost)
Table 1. Adapted from Lyden et al., 1994[25] American Heart Association, Inc.


Alberta stroke program early CT score (ASPECTS)
Area affected Score
Subganglionic Nuclei: M1 - Frontal operculum   1
M2 - Anterior temporal lobe 1
M3 - Posterior temporal lobe 1
Supraganglionic Nuclei: M4  - Anterior MCA    1
M5  - Lateral MCA   1
M6  - Posterior MCA    1
Basal Ganglia: C - Caudate 1
L - Lentiform Nucleus     1
I - Insula 1
IC - Internal Capsule 1
Table 2. Adapted from The University of Calgary ASPECT score in Accute stroke, 2020[24]


Pre-Stroke Modified Rankin Score (mRS)
Score Item tested
0 The patient had no residual symptoms.
1 The patient had no significant disability; able to carry out all activities.
2 The patient had slight disability; unable to carry out all activities but able to look after self without daily help.
3 The patient had moderate disability; requiring some external help but able to walk without the assistance of another individual.
4  The patient had moderately severe disability; unable to walk or attend to bodily functions without assistance of another individual.
5 The patient had severe disability; bedridden, incontinent, requires continuous care.
6 Unable to determine (UTD) from the medical record documentation.
Table 3. Adapted from Specifications Manual for Joint Commission National Quality Measures, 2018[23]


Laboratory Findings

Ultrasound

X-ray

CT scan

MRI

  • MRI of the head before IV alteplase administration to exclude microbleeds is not recommended.[17]
  • Multimodal MRI of the head should be done in patients who present within 24 hours of the initiation of symptoms.[2]
  • In patients who wake up with clinical symptoms of stroke of unknown onset (more than 3 hours?), an MRI with diffusion-positive FLAIR may be useful for selecting those who can benefit from IV alteplase administration.[17]

Electrocardiogram

Treatment

Medical therapy

  • The reported cases of treatment for COVID-19-associated stroke have followed the same pattern as regular stroke with few changes. The following recommendations are mainly based on the current guidelines of management for stroke of the AHA 2019.
  • The use of thrombolysis via ultrasound waves concomitant to IV fibrinolysis is not recommended.[31]
  • IV alteplase is always preferred over mechanical thrombectomy when there are no contraindications.[32]
  • The usefulness of anticoagulants such as thrombin inhibitors (dabigatran) and factor Xa inhibitors (rivaroxaban, apixaban, edoxaban) is not well established in the acute setting of stroke.[33]
  • In patients who are 75 years of age or younger with clinical ASCVD, high-intensity statin therapy should be initiated or continued with the aim of achieving a 50% or greater reduction in LDL-C levels.*
  • A clinician-patient risk discussion is recommended before initiation of statin therapy to review net clinical benefit, weighing the potential for ASCVD risk reduction against the potential for statin-associated side effects, statin-drug interactions, and safety, while emphasizing that side effects can be addressed successfully.*
  • Among patients already taking statins at the time of onset of ischemic stroke, continuation of statin therapy during the acute period is reasonable.*
  • For patients with ischemic stroke who qualify for statin treatment, in-hospital initiation of statin therapy is reasonable.[34]*

Alteplase

Tenecteplase

Antiplatelet therapy

  • The dose of aspirin is usually between 160-300mg daily.[43]
  • Administration of aspirin is recommended in patients with AIS within 24 to 48 hours after onset. For those treated with IV alteplase, aspirin administration is generally delayed until 24 hours later.[44]
  • IV aspirin administration within 90 minutes after the start of IV alteplase is associated with symptomatic intracranial hemorrhage, for which co administration is discouraged but benefits should be assessed in each individual case.[17][45]
  • Dual antiplatelet therapy with aspirin and clopidogrel (75 mg/d, with a loading dose of 600mg) may be started within 24 hours after symptom onset and continued for 21 days in patients with no cardioembolic ischemic stroke.[46]
  • Aspirin should not substitute IV alteplase or mechanical thrombectomy in patients eligible for these therapies.

Surgery

Mechanical thrombectomy with a stent retriever

  • Patients should receive mechanical thrombectomy with a stent retriever if they meet all the following criteria:[48]
    1. Prestroke mRS score of 0 to 1
    2. Causative occlusion of the internal carotid artery or MCA segment 1 (M1)
    3. Age ≥18 years
    4. NIHSS score of ≥6
    5. ASPECTS of ≥6; and
    6. Treatment can be initiated within 6 hours of symptom onset

Aspiration thrombectomy

  • Direct aspiration thrombectomy as first-pass mechanical thrombectomy is recommended as noninferior to stent retriever for patients who meet all the following criteria:[49]
    1. Prestroke mRS score of 0 to 1;
    2. Causative occlusion of the internal carotid artery or M1;
    3. Age ≥18 years;
    4. NIHSS score of ≥6;
    5. ASPECTS ≥6; and
    6. Treatment initiation within 6 hours of symptom onset.

Intra arterial fibrinolysis

  • Intra-arterial fibrinolysis may be initiated within 6 hours of stroke onset in selected patients in whom IV alteplase is contraindicated.

Other aspects of management

Primary Prevention

Secondary Prevention

References

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