What causes situational syncope?

Updated: Jan 13, 2017
  • Author: Rumm Morag, MD, FACEP; Chief Editor: Erik D Schraga, MD  more...
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Answer

Situational syncope is essentially a reproducible vasovagal syncope with a known precipitant. Micturition, defecation, deglutition, tussive, and carotid sinus syncope are types of situational syncope. These stimuli result in autonomic reflexes with a vasodepressor response, ultimately leading to transient cerebral hypotension. These are not life-threatening but can cause morbidity. The treatment involves avoidance of the precipitant when possible and the initiation of counter maneuvers when anticipated.


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