Background: HeartMate II (HM II) and HeartWare (HW) Left Ventricular Assist Devices have been successfully used\r\nin end-stage heart failure patients as a bridge to transplantation, recovery, or decision. We set out to compare their\r\neffect in off-loading the left ventricle and its geometry.\r\nMethods: The left ventricular end diastolic (LVEDD) and end systolic (LVESD) diameters were compared between\r\nfirst time HM II (n = 25) and HW implantations (n = 24) before and after the operation at 1, 3, and 6 months. A p\r\nvalue of less than 0.05 was considered as significant.\r\nResults: Post-operative LVEDD and LVESD at 1, 3, and 6 months were significantly reduced in comparison with preoperative\r\nvalues in both HM II and HW groups. No significant difference was found comparing HM II and HW\r\ngroups together before and after the operation.\r\nConclusions: Our study shows that both HM II and HW can significantly reduce the left ventricular systolic and\r\ndiastolic dimensions and off-load the left ventricle. The miniaturized nature of HW does not affect its performance\r\nand it could be as effective as HM II.
Loading....