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Entrainment of Ventricular Tachycardia in Arrhythmogenic Right Ventricular Tachycardia
Author(s) -
AIZAWA YOSHIFUSA,
FUNAZAKI TOSHIKAZU,
TAKAHASHI MASASHI,
NAITOH NAOKI,
MIYAJIMA TAKEFUMI,
KUSANO YORIKO,
SHIBATA AKIRA,
MISAKI TAKURO
Publication year - 1991
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.1540-8159.1991.tb02736.x
Subject(s) - medicine , reentry , cardiology , arrhythmogenic right ventricular dysplasia , ventricular tachycardia , tachycardia , sustained ventricular tachycardia , cardiomyopathy , heart failure
In two patients with arrhythrnogenic right ventricular dysplasia (ARVDJ, sustained ventricular tachycardia (VT) was induced by programmed stimulations during serial drug testings. One patient had five and the other had two VT morphologies, and the sites of origin were determined by endocardial catheter mappings. When overdrive pacing was performed, constant fusion in the QflS complex was observed in the two patients. Constant fusion of a different degree was also observed at different paced cycle lengths. Both patients had dilated right ventricles and wall‐motion abnormality, and the diagnosis of ARVD was further confirmed by the specimen resected at the site of origin of VT. Therefore, VT in ARVD can be entrained and reentry is the most likely mechanism of such VT.