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Syncope 

Chapter:
Syncope
Author(s):

A.J. Larner

DOI:
10.1093/med/9780199204854.003.240504_update_001

February 27, 2014: This chapter has been re-evaluated and remains up-to-date. No changes have been necessary.

Update:

Chapter re-evaluated and minor changes made.

Updated on 28 Nov 2012. The previous version of this content can be found here.
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date: 21 October 2017

Syncope is the commonest identified cause of transient loss of consciousness, being ten times more frequent than epilepsy. It is a consequence of cerebral underperfusion due to reduced cardiac output, often related to reduced venous return due to decreased peripheral vascular resistance, with pooling of blood volume in dependent body parts....

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