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{{Syncope}}
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==Overview==
Syncope itself is a [[symptom]]. [[Patients]] with syncope may feel balcking out, [[dizziness]], [[lightheadedness]], and temporary [[loss of consciousness]]. [[Patients]] may experience other [[symptoms]] based on the underlying [[causes]] of the syncope.
==History and Symptoms==
Syncope itself is a [[symptom]]. [[Patients]] with syncope may feel:<ref name="pmid30804064">{{cite journal| author=Chen M, Jamnadas-Khoda J, Broadhurst M, Wall M, Grünewald R, Howell SJL et al.| title=Value of witness observations in the differential diagnosis of transient loss of consciousness. | journal=Neurology | year= 2019 | volume= 92 | issue= 9 | pages= e895-e904 | pmid=30804064 | doi=10.1212/WNL.0000000000007017 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=30804064  }} </ref><ref name="WielingThijs2009">{{cite journal|last1=Wieling|first1=W.|last2=Thijs|first2=R. D.|last3=van Dijk|first3=N.|last4=Wilde|first4=A. A. M.|last5=Benditt|first5=D. G.|last6=van Dijk|first6=J. G.|title=Symptoms and signs of syncope: a review of the link between physiology and clinical clues|journal=Brain|volume=132|issue=10|year=2009|pages=2630–2642|issn=0006-8950|doi=10.1093/brain/awp179}}</ref><ref name="Alboni2002">{{cite journal|last1=Alboni|first1=P|title=Haemodynamic changes early in prodromal symptoms of vasovagal syncope|journal=Europace|volume=4|issue=3|year=2002|pages=333–338|issn=10995129|doi=10.1053/eupc.2002.0241}}</ref>


==History and Symptoms==
:*Blacking out
Syncope itself is a symptom. Patients with syncope may feel:
:*Temporary [[loss of consciousness]] 
:*[[Blacking out]]
:*Light-headedness
:*[[Dizziness]]
:*[[Dizziness]]
:*[[Grogginess]], feeling unsteady or weak when standing, even falling
:*[[Grogginess]], feeling unsteady or weak when standing, even falling
:*[[Lightheadedness]]
:*Temporary [[loss of consciousness]]
[[Patients]] may experience other [[symptoms]] based on the underlying [[causes]] of the syncope. The table below demonstrates the important history findings of different type of syncope:
<br />
{| class="wikitable"
|+
| align="center" style="background: #4479BA; color: #FFFFFF |'''Subtype'''
| align="center" style="background: #4479BA; color: #FFFFFF |'''History Findings'''
|-
| rowspan="5" |'''Syncope due to [[orthostatic hypotension]]'''
|
* Usually after standing up
*
|-
|
* In relation to a change in the dosage of [[antihypertensive]] drugs
*
|-
|
* Standing for a long time especially in a hot, crowded place
*
|-
|
* Standing after exertion
*
|-
|
* History of [[peripheral neuropathy]], [[diabetes]], [[Parkinsonism]]
|-
| rowspan="4" |'''[[Cardiovascular]] syncope'''
|
*Presence of known [[structural heart disease]]
*
|-
|
*Occurs during exertion or supine
*
|-
|
*
*A family history of [[sudden death]] or channelopathy
*
|-
|
*Syncope preceded by [[palpitation]]
*
|+
| rowspan="8" |'''Neurally-mediated syncope'''
|
* No known history of [[heart disease]]
*
|-
|
* Recurrent episodes of syncope
*
|-
|
* Syncope associated with [[nausea and vomiting]]
*
|-
|
*Occurs after sudden, unexpected sight, smell, emotional situation
*
|-
|
*Standing for a long time especially in a hot, crowded place
|-
|
*During or after a meal
|-
|
*With a change in head position or pressure on the [[carotid sinus]]
|-
|
*After exertion
|}


Similar symptoms may be seen in other diseases such as:
:*[[Dizziness]]
:*[[Seizure]]
:*[[Vertigo]]
:*[[Coma]]
:*[[Shock]]
==References==
==References==
{{reflist|2}}
{{reflist|2}}
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[[Category:Signs and symptoms]]
[[Category:Emergency medicine]]
[[Category:Emergency medicine]]
[[Category:Cardiology]]
[[Category:Cardiology]]

Latest revision as of 00:21, 30 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2]

Overview

Syncope itself is a symptom. Patients with syncope may feel balcking out, dizziness, lightheadedness, and temporary loss of consciousness. Patients may experience other symptoms based on the underlying causes of the syncope.

History and Symptoms

Syncope itself is a symptom. Patients with syncope may feel:[1][2][3]

Patients may experience other symptoms based on the underlying causes of the syncope. The table below demonstrates the important history findings of different type of syncope:

Subtype History Findings
Syncope due to orthostatic hypotension
  • Usually after standing up
  • Standing for a long time especially in a hot, crowded place
  • Standing after exertion
Cardiovascular syncope
  • Occurs during exertion or supine
Neurally-mediated syncope
  • Recurrent episodes of syncope
  • Occurs after sudden, unexpected sight, smell, emotional situation
  • Standing for a long time especially in a hot, crowded place
  • During or after a meal
  • After exertion

References

  1. ↑ Chen M, Jamnadas-Khoda J, Broadhurst M, Wall M, Grünewald R, Howell SJL; et al. (2019). "Value of witness observations in the differential diagnosis of transient loss of consciousness". Neurology. 92 (9): e895–e904. doi:10.1212/WNL.0000000000007017. PMID 30804064.
  2. ↑ Wieling, W.; Thijs, R. D.; van Dijk, N.; Wilde, A. A. M.; Benditt, D. G.; van Dijk, J. G. (2009). "Symptoms and signs of syncope: a review of the link between physiology and clinical clues". Brain. 132 (10): 2630–2642. doi:10.1093/brain/awp179. ISSN 0006-8950.
  3. ↑ Alboni, P (2002). "Haemodynamic changes early in prodromal symptoms of vasovagal syncope". Europace. 4 (3): 333–338. doi:10.1053/eupc.2002.0241. ISSN 1099-5129.

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