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[Deglutition-induced supraventricular tachycardias]
K H Bischoff1, I Assmann, P Dittrich
1Abteilung für Kardiologie, Medizinischen Akademie Erfurt und der Kreispoliklinik Arnstadt.
Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete
|May 15, 1989
Summary
Swallowing can trigger supraventricular tachycardia (SVT) in patients with hypertension. Amiodarone effectively treated these swallowing-induced tachycardias originating in the right atrium.
Area of Science:
- Cardiology
- Electrophysiology
- Gastroenterology
Background:
- Supraventricular tachycardia (SVT) can manifest with various triggers.
- Understanding the specific mechanisms of SVT is crucial for effective treatment.
Observation:
- Two patients presented with supraventricular tachycardia (SVT) specifically induced by swallowing.
- Both patients had coexisting systemic hypertension, with no other cardiac or gastroesophageal abnormalities identified.
Findings:
- Electrophysiologic studies revealed SVT with 1:1 atrioventricular (AV) conduction in the first case and atrial tachycardia with AV block in the second.
- Both tachycardias originated in the right atrium.
- Treatment with amiodarone resulted in complete cessation of SVT in both patients.
Implications:
- Swallowing represents a novel trigger for SVT in hypertensive individuals.
- Right atrial origin is implicated in swallowing-induced SVT.
- Amiodarone is an effective therapeutic option for this specific SVT presentation.