Key result
Adaptive cardiac resynchronization therapy contributed to less functional mitral regurgitation in a patient with dilated cardiomyopathy.
Why the study?
Does adaptive cardiac resynchronization therapy improve functional mitral regurgitation in a patient with dilated cardiomyopathy?
Case Report (n=1)
Does adaptive cardiac resynchronization therapy improve functional mitral regurgitation in a patient with dilated cardiomyopathy?
Adaptive CRT with automatic adjustments of intracardiac conduction parameters may effectively reduce functional mitral regurgitation in patients with dilated cardiomyopathy.
Suggests adaptive CRT may reduce functional mitral regurgitation in dilated cardiomyopathy; hypothesis-generating from one case and requires prospective confirmation.
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.
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Nagata et al. (2017) conducted a case report in Dilated cardiomyopathy with severe functional mitral regurgitation (n=1). Adaptive cardiac resynchronization therapy (CRT) was evaluated on Functional mitral regurgitation severity. Adaptive cardiac resynchronization therapy contributed to less functional mitral regurgitation in a patient with dilated cardiomyopathy.
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