Swallow syncope.
Swallow syncope is a rare disorder caused by hypersensitive vagotonic reflex in response to deglutition. A 26-year-old man complained of recurrent light-headedness and near syncope on swallowing was hospitalized for monitoring and evaluation. Continuous electrocardiographic and invasive arterial pressure monitoring showed ingestion of a solid meal evoked light-headedness and complete AV block without an escape rhythm that lasted for 5.6 seconds. This patient received a Medtronic Kappa (401B) DDDR pacemaker with the rate drop feature. The patient has remained asymptomatic on follow-up for the past 2 years.
Srivathsan
Komandoor
K
Division of Cardiovascular Diseases, Mayo Clinic Scottsdale, 13400 East Shea Blvd., Scottsdale, AZ 85259.
Lee
Richard W
RW
D000328:Adult; D001919:Bradycardia / Q000209:etiology* / Q000628:therapy; D003679:Deglutition / Q000502:physiology*; D004562:Electrocardiography; D006323:Heart Arrest / Q000209:etiology / Q000628:therapy; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D013575:Syncope / Q000209:etiology* / Q000628:therapy