Case Report (n=1)
No
Permanent pacemaker implantation is an effective treatment for swallow syncope induced by vagovagal reflex causing advanced AV block.
Hypothesis-generating for pacing in swallow syncope; larger studies needed before clinical adoption.
A 65-year-old man experienced syncope associated with advanced atrioventricular (AV) block upon swallowing. Continuous electrocardiogram (ECG) monitoring revealed first and second degree AV block. ECG revealed advanced AV block (Max R-R 6.38 s) upon swallowing, a cold drink. Demand ventricular pacing alleviated his symptoms. In this patient, the advanced AV block might have been precipitated by a vagovagal reflex triggered by expansion of the esophagus, resulting in selective suppression of the atrioventricular node.
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Kunimoto et al. (1990) conducted a case report in Swallow syncope (n=1). Transvenous permanent pacemaker was evaluated on Recurrence of swallow syncope.
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