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Defecation syncope
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Defecation syncope

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Contributors: Jamie Adams MD, Richard L. Barbano MD, PhD
Other Resources UpToDate PubMed

Synopsis

Transient loss of consciousness triggered by the act of defecation. One of the reflex syncopes, due to a neurally mediated reflex characterized by vasodilatation and/or bradycardia resulting in transient hypotension and cerebral hypoperfusion. Other findings include presyncope, visual impairment, abdominal cramps, nausea, vomiting, diarrhea, fatigue, generalized weakness, orthostatic hypotension, and hypertension. More likely to occur in women. Coexisting conditions may include vasovagal syncope, carotid sinus hypersensitivity, micturition syncope, and deglutition syncope. Syncope may be caused by an underlying condition.

Treatment is case dependent and may include permanent pacemaker placement.

Codes

ICD10CM:
R55 – Syncope and collapse

SNOMEDCT:
234169009 – Defecation syncope

Differential Diagnosis & Pitfalls

Best Tests

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References

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Last Updated: 03/28/2017
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Defecation syncope
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Defecation syncope : Loss of consciousness, Recurring episodes or relapses, Syncope, Visual impairment, Presyncope, HR decreased
Copyright © 2018 VisualDx®. All rights reserved.