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Swallow syncope.

A Farb1, S A Valenti

  • 1Department of Internal Medicine, Howard County General Hospital, Columbia, Maryland, USA.

Maryland Medical Journal (Baltimore, Md. : 1985)
|August 26, 1999
PubMed
Summary
This summary is machine-generated.

Swallowing syncope, a rare vagally-mediated cause of fainting, occurs due to impulses from the upper GI tract affecting heart rhythm. Pacemaker implantation is often curative for this condition.

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Area of Science:

  • Cardiology
  • Gastroenterology
  • Neurology

Background:

  • Swallowing syncope (deglutition syncope) is an infrequent, vagally-mediated cause of syncope.
  • It involves a reflex arc between the upper gastrointestinal tract and the heart, potentially leading to bradyarrhythmias and atrioventricular block.

Observation:

  • Two distinct cases of swallowing syncope are presented.
  • One case was triggered by consuming a cold carbonated beverage.
  • The second case, termed "Vaso-Bagel" syncope, was precipitated by swallowing a large food bolus.

Findings:

  • The mechanism involves afferent impulses from the upper GI tract and efferent impulses to the heart.
  • This can result in various bradyarrhythmias, including atrioventricular block.

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Implications:

  • A history of eating or drinking preceding syncope is crucial for diagnosis.
  • While dietary modifications may help some patients, permanent pacemaker implantation is frequently indicated and curative.