“…6 However, other authors have reported significant chronic hemolysis, thromboembolism, variance of the silastic ball and tissue ingrowth of the paravalvular area. 2,3 In the present case, although the preoperative echocardiogram showed that the aortic S-E valve prosthesis that had been implanted 28 years previously was functioning normally, prophylactic replacement was perfomed at the same time as the mitral valve replacement, coronary artery bypass grafting and TAP. Grunkemeier and Starr suggested that prophylactic reoperation for S-E bare strut ball valves is not indicated in the current subset, 2 and Lund et al reported that S-E aortic ball valves, including the currently available silastic ball valves, are durable for the remaining life span of the patients who can expect near normal ageand sex-specific survival.…”