Open AccessAdaptive cardiac resynchronization therapy for dilated cardiomyopathy with functional mitral regurgitation
Author(s) -
Nagata Yoshiki,
Nakagawa Yoichiro,
Takeda Yusuke,
Emoto Kenji,
Kinoshita Masaki,
Chikata Akio,
Maruyama Michiro,
Usuda Kazuo
Publication year - 2017
Publication title -
journal of arrhythmia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 21
eISSN - 1883-2148
pISSN - 1880-4276
DOI - 10.1016/j.joa.2017.04.003
Subject(s) - medicine , cardiac resynchronization therapy , cardiology , functional mitral regurgitation , dilated cardiomyopathy , intracardiac injection , mitral regurgitation , heart failure , ejection fraction
We report the case of a man in his 60s who had dilated cardiomyopathy with severe functional mitral regurgitation. Four years after a cardiac resynchronization therapy (CRT) device with an implantable cardioverter defibrillator was implanted, this device was replaced with an adaptive CRT device because of battery consumption. Seven months after replacement of this device, the left ventricular pacing to right ventricular activation and the atrioventricular delay from automatic adjustments contributed to less functional mitral regurgitation. The findings from our case suggest that optimal CRT, by measuring intracardiac conduction parameters, is effective for functional mitral regurgitation.