Potential Efficacy of Multipoint Pacing in the Reduction of Mitral Regurgitation Volume: a Case Report

AbstractA 70‐year‐old woman who had cardiac sarcoidosis and severe tethering mitral regurgitation (MR) and had been implanted with a biventricular pacemaker experienced recurrent hospitalisation due to decompensated heart failure (HF). Application of MultiPoint™ pacing reduced the MR volume and maintained the symptoms under control; however, the predicted longevity of the device significantly decreased because of the very high threshold of the added pacing site. Transcatheter mitral valve repair (TMVR) using MitraClip® was performed to further diminish the severe MR, thereby enabling the switch from highly consumptive multipoint pacing (MPP) to energy‐saving single‐point pacing. MPP could further reduce MR compared to the conventional single‐point pacing, and this could be a bridging therapy to TMVR in some patients implanted with a biventricular pacemaker. This is the first case to report that switching from conventional single‐point pacing to MPP decreased the MR, to some extent, resulting in the improvement of HF symptoms.