Abstract

Mid-term Results of Valve Replacements with Omnicarbon Prosthetic Valves. One hundred and seven patients who underwent valve replacement with Omnicarbon valves were analyzed according to the guideline of STS-AATS (1988). There are thirty three aortic valve replacement, sixty one mitral valve replacement and thirteen double valve replacement. They consist of 59 male and 48 female with a mean age of 56.5 years old. The operative death was found in 8 patients (7.5%), caused by ruptured left ventricle in two, low output syndrome in two, and cerebral bleeding in two patients, and graft versus host disease due to blood transfusion in one and ventricular arrhythmia in one. The late death was seen in ten patients (9.3%). The causes of the late death included five cerebrovascular disorders, two advanced heart failures, one prosthetic valve endocarditis, one arrhythmia, and one ileus. The overall survival rate is 78.5% at 5.8 years, the survival rate of AVR is 85.2%, MVR 76.4% and AVR+MVR 69.2% at 5.8 years respectively. The event-free rate of survivors is 89.0% at 5.8 years and freedom from all valve-related mobidity and mortality is 80.0% at 5.8 years. The result of this study revealed that the Omnicarbon valve had low rate of valve related complications.