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Propafenone Induced Acute Variation of Chronic Atrial Pacing Threshold: A Case Report
Author(s) -
MONTEFOSCHI NICOLA,
BOCCADAMO ROBERTO
Publication year - 1990
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1990.tb02062.x
Subject(s) - propafenone , medicine , cardiology , bradycardia , atrial tachycardia , tachycardia , anesthesia , atrial fibrillation , heart rate , catheter ablation , blood pressure
A marked increase of chronic atrial pacing threshold resulting in Joss of atrial capture, induced by propafenone, is reported in a patient with bradycardia‐tachycardia syndrome. After atrial pacemaker implant, the atrial threshold had been measured repeatedly noninvasively and shown to be stable. The threshoJd rise and loss of atrial capture occurred after 7 days of treatment with propafenone at the dosage of 450 mg daily; drug withdrawal resulted in resumption of atrial capture and a return to prior pacing thresholds.