COMPARATIVE LATE RESULTS WITH OMNISCIENCE AND MEDTRONICHALL VALVE IN MITRAL POSITION USING TRANSESOPHAGEAL ECHOCARDIOGRAPHY

Abstract

The valvular and cardiac function undergoing mitral valve replacement with Omniscience (OS) and Medtronic-Hall (MH) valve have been assesed retrospectively and compared using transesophageal echocardiography. No statistically significant differences were obtained regarding peak pressure gradient, peak velocity, obligatory regurgitation and cardiac function. But, pressure half time of the OS group was 100.5msec and that of the MH group was 82.8msec with a statistically signicant difference. Opening angles of the prosthesis were larger in the MH group compared with those in OS group and reoperation was performed in 11 patients in the OS group.