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| '''Complication 1: Acute Kidney Injury in COVID-19'''<br><br>
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| '''For patient information, click [[Xyz (patient information)|here]]'''
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| {{SK}} [[Acute Kidney Injury]], [[Acute Renal Failure]], [[AKI]], [[ARF]]
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| ==[[AKI overview|Overview]]==
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| =[[AKI pathophysiology|Pathophysiology]]=
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| *Angiotensin-converting enzyme 2 ([[ACE2]]), which is a primary receptor for [[SARS-CoV-2]] entry into cells, mostly presents in kidneys as well as lungs and heart.<ref name="MalhaMueller2020">{{cite journal|last1=Malha|first1=Line|last2=Mueller|first2=Franco B.|last3=Pecker|first3=Mark S.|last4=Mann|first4=Samuel J.|last5=August|first5=Phyllis|last6=Feig|first6=Peter U.|title=COVID-19 and the Renin-Angiotensin System|journal=Kidney International Reports|volume=5|issue=5|year=2020|pages=563–565|issn=24680249|doi=10.1016/j.ekir.2020.03.024}}</ref>
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| *Despite kidney injury following [[COVID-19]] infection is less frequent than severe lung injury, [[ACE2]]: [[ACE]] ratio is higher in the kidneys compared to the respiratory system. (1:1 in the kidneys VS 1:20 in the respiratory system)<ref name="MalhaMueller2020">{{cite journal|last1=Malha|first1=Line|last2=Mueller|first2=Franco B.|last3=Pecker|first3=Mark S.|last4=Mann|first4=Samuel J.|last5=August|first5=Phyllis|last6=Feig|first6=Peter U.|title=COVID-19 and the Renin-Angiotensin System|journal=Kidney International Reports|volume=5|issue=5|year=2020|pages=563–565|issn=24680249|doi=10.1016/j.ekir.2020.03.024}}</ref>
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| *It is thought that [[AKI]] following COVID-19 is the result of<ref name="MalhaMueller2020">{{cite journal|last1=Malha|first1=Line|last2=Mueller|first2=Franco B.|last3=Pecker|first3=Mark S.|last4=Mann|first4=Samuel J.|last5=August|first5=Phyllis|last6=Feig|first6=Peter U.|title=COVID-19 and the Renin-Angiotensin System|journal=Kidney International Reports|volume=5|issue=5|year=2020|pages=563–565|issn=24680249|doi=10.1016/j.ekir.2020.03.024}}</ref>
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| **[[Sepsis]]
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| **Hypotension
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| =[[AKI epidemiology and demographics|Epidemiology and Demographics]]=
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| *Early reports from china revealed that COVID-19 rarely involves the kidneys, as [[Acute Renal Failure]] was not seen among COVID-19 hospitalized patients and mild [[BUN]] or creatinine rise [10.8%] and mild proteinuria [7.2%] occurred. <ref name="WangLi2020">{{cite journal|last1=Wang|first1=Luwen|last2=Li|first2=Xun|last3=Chen|first3=Hui|last4=Yan|first4=Shaonan|last5=Li|first5=Dong|last6=Li|first6=Yan|last7=Gong|first7=Zuojiong|title=Coronavirus Disease 19 Infection Does Not Result in Acute Kidney Injury: An Analysis of 116 Hospitalized Patients from Wuhan, China|journal=American Journal of Nephrology|volume=51|issue=5|year=2020|pages=343–348|issn=0250-8095|doi=10.1159/000507471}}</ref>
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| *However, recent study found 75.4% of hospitalized patients with COVID-19 pneumonia developed [[hematuria]], [[proteinuria]], and [[AKI]]. <ref name="PeiZhang2020">{{cite journal|last1=Pei|first1=Guangchang|last2=Zhang|first2=Zhiguo|last3=Peng|first3=Jing|last4=Liu|first4=Liu|last5=Zhang|first5=Chunxiu|last6=Yu|first6=Chong|last7=Ma|first7=Zufu|last8=Huang|first8=Yi|last9=Liu|first9=Wei|last10=Yao|first10=Ying|last11=Zeng|first11=Rui|last12=Xu|first12=Gang|title=Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia|journal=Journal of the American Society of Nephrology|volume=31|issue=6|year=2020|pages=1157–1165|issn=1046-6673|doi=10.1681/ASN.2020030276}}</ref> But, these findings are not significantly different from other critical diseases.
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| =[[AKI Natural history|Natural history]]=
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| *Severe [[COVID-19]] pneumonia and [[severe acute respiratory distress syndrome]] are associated with developing [[AKI]].<ref name="PeiZhang2020">{{cite journal|last1=Pei|first1=Guangchang|last2=Zhang|first2=Zhiguo|last3=Peng|first3=Jing|last4=Liu|first4=Liu|last5=Zhang|first5=Chunxiu|last6=Yu|first6=Chong|last7=Ma|first7=Zufu|last8=Huang|first8=Yi|last9=Liu|first9=Wei|last10=Yao|first10=Ying|last11=Zeng|first11=Rui|last12=Xu|first12=Gang|title=Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia|journal=Journal of the American Society of Nephrology|volume=31|issue=6|year=2020|pages=1157–1165|issn=1046-6673|doi=10.1681/ASN.2020030276}}</ref>
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| *Approximately half of the new AKI cases following COVID-19 is mild with good short-term prognosis.
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| *If no improvement occurs during follow-up, it is contributed to higher mortality.<ref name="PeiZhang2020">{{cite journal|last1=Pei|first1=Guangchang|last2=Zhang|first2=Zhiguo|last3=Peng|first3=Jing|last4=Liu|first4=Liu|last5=Zhang|first5=Chunxiu|last6=Yu|first6=Chong|last7=Ma|first7=Zufu|last8=Huang|first8=Yi|last9=Liu|first9=Wei|last10=Yao|first10=Ying|last11=Zeng|first11=Rui|last12=Xu|first12=Gang|title=Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia|journal=Journal of the American Society of Nephrology|volume=31|issue=6|year=2020|pages=1157–1165|issn=1046-6673|doi=10.1681/ASN.2020030276}}</ref>
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| =[[AKI History and Symptoms|History and Symptoms]]=
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| *Patients in the early stages of kidney failure may be asymptomatic. If left untreated, patients may progress to develop [[Azotemia]] and [[Uremia]], which occur due to the buildup of waste materials in the blood.
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| '''History and Symptoms'''
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| *Symptoms of kidney injury include<ref name=Skorecki>{{cite book |vauthors=Skorecki K, Green J, Brenner BM |veditors=Kasper DL, Braunwald E, Fauci AS |title=Harrison's Principles of Internal Medicine|url=https://archive.org/details/harrisonsprincip00kasp |url-access=limited |edition=16th |year=2005 |publisher=McGraw-Hill |location=New York, NY |isbn=978-0-07-139140-5 |pages=[https://archive.org/details/harrisonsprincip00kasp/page/n1681 1653]–63 |chapter=Chronic renal failure|display-editors=etal}}</ref>:
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| **Nausea and Vomiting
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| **Weakness
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| **Fatigue
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| **Confusion
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| **Weight loss
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| **Loss of appetite
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| **[[Oliguria]] or [[Anuria]]
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| **Fluid retention, leading [[edema]] and swelling of face, extremities
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| **Electrolyte imbalance; High level of [[Potassium]] which leads to [[cardiac arrhythmia]]
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| '''Physical Examination'''
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| =[[AKI Diagnosis|Diagnosis]]=
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| '''Laboratory Findings''' | | {{familytree/start}}{{familytree | | | | | | | | | A01 | | | | | |A01= [[COVID-19]] }} |
| | {{familytree | | |,|-|-|-|-|-|-|^|-|-|-|-|-|-|.| }} |
| | {{familytree | | C01 | | | | | | | | | | | | C02 |C01= '''30-40%''' <br> [[Asymptomatic]]|C02= '''60-70%''' <br> [[Symptomatic]]}} |
| | {{familytree | | |!| | | | | | | | | |,|-|-|-|+|-|-|-|-|.|}} |
| | {{familytree | | E01 | | | | | | | | E02 | | E03 | | | E04 |E01=[[Asymptomatic carrier]]|E02='''80%''' <br> Mild symtoms|E03='''14%''' <br> Severe symptoms|E04='''6%''' <br> Critically ill}} |
| | {{familytree | | | | | | | | | | | | |!| | | |!| | | | |!| | }} |
| | {{familytree | | | | | | | | | | | | F01 | | F02 | | | F03 |F01=[[Fever]]<br> [[Chills]]<br> [[Cough]]<br> [[Headache]]<br> [[Sore throat]]<br> [[Nasal congestion]] or secretion <br> [[Fatigue]]<br> [[Body aches]]<br> [[loss of taste]] or [[smell]] |
| | <br> [[Nausea]] or [[vomiting]] <br> [[Diarrhea]]<br> |F02=Severe [[Dyspnea]]<br> [[Chest pain]]<br> Severe [[weakness]] <br> new [[Confusion]]<br> Central [[Cyanosis]] |
| | |F03=Death}} |
| | {{familytree/end}} |
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| '''Electrocardiogram'''
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| '''Ultrasound Finding'''
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| '''Other Diagnostic Studies''' | | {| class="wikitable" |
| | ! colspan=4 style="background: #4479BA; color: #FFFFFF; " align="center"|CT manifestations of COVID-19 |
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| | !style="background: #4479BA; color: #FFFFFF; " align="center" |CT findings |
| | !style="background: #4479BA; color: #FFFFFF; " align="center" |Definition |
| | !style="background: #4479BA; color: #FFFFFF; " align="center" |CT picture |
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| | |style="background: #DCDCDC; |'''[[Ground glass opacity]]''' |
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| | *Hazy opacity in the lungs with well defined bronchial and vascular margins |
| | *the most common imaging finding |
| | *due to infection, chronic interstitial lung disease, and acute lung injury |
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| =Treatment= | | |[[File:Covid-19-pneumonia-26.jpg|200px|thumb|center]] |
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| | |style="background: #DCDCDC; |'''[[Consolidation]]''' |
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| | *a parenchymal density with ill-defined bronchial and vascular margins |
| | *filling with infectious material [fluid, cells, tissue] |
| | * due to cellular exudates in alveoli |
| | |[[file |
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| | |style="background: #DCDCDC; |''' [[Crazy paving pattern]] ''' |
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| | * Septal thickening of inter and intra-lobar regions |
| | * with the background of the Ground glass opacity |
| | * Similar to paving stones |
| | * Due to alveolar edema and acute inflammation of the lung |
| | * Sign of progression |
| | |[[File:Covid-19-pneumonia-122.jpg|200px|thumb|center]] |
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| '''AKI Medical Therapy'''
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| | |style="background: #DCDCDC; |''' [[Reticuldar]] pattern ''' |
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| | *Linear opacities in the lungs |
| | *Due to Interstitial thickening of inter and intralobular septa |
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| | |[[file |
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| | |style="background: #DCDCDC; |'''[[Air bronchogram]] ''' |
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| | * Air-filled bronchi |
| | *Low attenuated areas in the lung |
| | |[[file |
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| [[Category:Disease]] | | |- |
| [[Category:Emergency medicine]]
| | |style="background: #DCDCDC; |''' [[Bronchiectasis]] ''' |
| [[Category:Kidney diseases]] | | | |
| [[Category:Nephrology]]
| | *irreversible dilatation of the lung airways |
| | * Bronchus diameter more than 1.5 cm |
| | *due to inflammation, obstruction and impaired clearance |
| | |[[file |
| | |} |
