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. 2019 Dec 11;6(3):153–157. doi: 10.1016/j.hrcr.2019.12.002

Figure 1.

Figure 1

Echocardiographic parameters before and 6 months after cardiac resynchronization therapy (CRT) with WiSE (EBR Systems, Sunnyvale, CA) CRT system. A: Low left ventricular (LV) ejection fraction (EF) during right ventricular apical pacing with leadless pacemaker normalized after CRT with WiSE CRT system. B,C: Both LV end-diastolic and end-systolic volume index clearly decreased compared with baseline (BL). Data are shown by solid line in patient 1 and dotted line in patient 2. 6M = 6 months.