The safety and effi cacy of epicardial ventricular restoration in patients with antero-septal scar and dilated ischemic cardiomyopathy / 中国介入心脏病学杂志

ABSTRACT

Objective To evaluate the safety and efficacy of epicardial ventricular restoration (EVR) using REVIVENT system in patients with antero-septal scar and dilated ischemic cardiomyopathy. Methods Ten ischemic heart patients with antero-septal scar underwent the operation. The scarred lateral left ventricular wall was apposed to the septal scar with serial paired anchors placed through epicardial transmural excluding the non-viable portions of the chamber. Left ventricular hemodynamic assessments as well as left ventricular ejection fraction, left ventricular end-systolic/diastolic volume (LVEDV/LVESV) and their indexes (LVEDVI/LVESVI) were measured by cardiac magnetic resonance (CMR). Results Ten ischemic heart failure patients with antero-septal scar, aged(55.2±13.9)years, received a hybrid epicardial ventricular restoration. Cardiac MR done at one a month after the procedure showed an elevation of LVEF from(27.8±4.6%)to(37.5±11.4)% (+35%, P<0.01). LVESV was significantly reduced from(149.9±61.6) ml to(109.9±58.0)ml (–26.7%, P<0.01), LVESVI was reduced from(84.8±36.7)ml/m2to(63.0±34.2) ml/m2(reduced by 25.7%, P<0.01); LVEDV was reduced from(203.0±64.0)ml to(167.9±58.2)ml (reduced by 17.3%, P<0.01), and LVESV was reduced from(114.5±37.8)ml/m2to(96.2±35.2)ml/m2(reduced by 16.0%, P<0.01). Cardiac output (CO) increased from(4.0±1.5)L/min to(4.8±1.2)L/min(increased by 20.0%, P=0.034) and cardiac index (CI) increased from(2.2±0.7)L/(min ? m2) to(2.7±0.7)L/(min ? m2) (increased by 22.4%, P=0.023). Conclusions Our preliminary experience on EVR using the REVIVENT system demonstrated signifi cant increase in LVEF, CO and CI, with decreases in LVEDV/LVESV at 1 month following the procedure. Its feasibility and safety need further evaluation in the future.