Open AccessExercise‐induced ventricular tachycardia in a case with hypertrophic cardiomyopathy taking cibenzoline
Author(s) -
Shiohira Shinya,
Kawabata Mihoko,
Goya Masahiko,
Maeda Shingo,
Sasano Tetsuo,
Hirao Kenzo
Publication year - 2021
Publication title -
annals of noninvasive electrocardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.494
H-Index - 48
eISSN - 1542-474X
pISSN - 1082-720X
DOI - 10.1111/anec.12789
Subject(s) - medicine , hypertrophic cardiomyopathy , cardiology , ventricular tachycardia , sustained ventricular tachycardia , cardiomyopathy , heart failure
We report a 17‐year‐old woman with hypertrophic cardiomyopathy (HCM) successfully resuscitated from ventricular fibrillation while taking cibenzoline. During exercise–stress testing before implanting an implantable cardioverter–defibrillator, ventricular tachycardia was induced and thought to be a proarrhythmia due to the use‐dependent effect of the Na channel blockade with cibenzoline. In patients with arrhythmogenic substrates such as HCM, it is critical to pay attention to the proarrhythmic effects of class I antiarrhythmic drugs while increasing heart rate.