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Related Experiment Videos

Swallowing-induced atrioventricular block.

A O Sy1, S Plantholt

  • 1Department of Medicine, St. Agnes Hospital, Baltimore, MD 21229.

Southern Medical Journal
|October 1, 1991
PubMed
Summary
This summary is machine-generated.

Swallowing syncope, a rare cause of fainting, can be triggered by the act of swallowing. This case report details atrioventricular block induced by this unusual reflex.

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Area of Science:

  • Cardiology
  • Neurology
  • Gastroenterology

Background:

  • Syncope, or fainting, can have various triggers.
  • Deglutition syncope (swallowing syncope) is a rare but recognized cause of transient loss of consciousness.

Observation:

  • A case of a patient experiencing syncope was observed.
  • The syncope was directly linked to the act of swallowing.

Findings:

  • The swallowing event induced a significant atrioventricular block.
  • This cardiac conduction abnormality explains the observed syncope.

Implications:

  • Highlights the importance of considering deglutition syncope in the differential diagnosis of unexplained syncope.
  • Suggests a potential neurological or vagal reflex pathway linking swallowing to cardiac function.