TY - JOUR
T1 - Thrombosis of mechanical cardiac valves
T2 - A qualitative comparison of the Silastic ball valve and the tilting disc valve
AU - Metzdorff, Mark T.
AU - Grunkemeier, Gary L.
AU - Wright Pinson, C.
AU - Starr, Albert
PY - 1984
Y1 - 1984
N2 - A review of 817 mitral and aortic Silastic ball valve implantations with a follow-up of 3,554 total patient-years yielded only seven cases of valve thrombosis. Time-related risk was 0.4% per patient-year in the mitral position and 0.1 % per patient-year in the aortic position. Four of five mitral and one of two aortic ball valve thromboses were successfully managed by valve rereplacement. At least five of the seven patients presented with a prodrome (lasting at least 3 months) of symptoms of progressive heart failure and, occasionally, embolic episodes due to gradually increasing prosthetic stenosis by thrombus. This lengthy time course is in contrast to the more frequent rapid catastrophic thrombosis that occurs with the Björk-Shiley tilting disc valve. Recognition of the prodrome of Silastic ball valve thrombosis provides an opportunity for life-saving surgical intervention.
AB - A review of 817 mitral and aortic Silastic ball valve implantations with a follow-up of 3,554 total patient-years yielded only seven cases of valve thrombosis. Time-related risk was 0.4% per patient-year in the mitral position and 0.1 % per patient-year in the aortic position. Four of five mitral and one of two aortic ball valve thromboses were successfully managed by valve rereplacement. At least five of the seven patients presented with a prodrome (lasting at least 3 months) of symptoms of progressive heart failure and, occasionally, embolic episodes due to gradually increasing prosthetic stenosis by thrombus. This lengthy time course is in contrast to the more frequent rapid catastrophic thrombosis that occurs with the Björk-Shiley tilting disc valve. Recognition of the prodrome of Silastic ball valve thrombosis provides an opportunity for life-saving surgical intervention.
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U2 - 10.1016/S0735-1097(84)80318-6
DO - 10.1016/S0735-1097(84)80318-6
M3 - Article
C2 - 6736454
AN - SCOPUS:0021173547
SN - 0735-1097
VL - 4
SP - 50
EP - 53
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
IS - 1
ER -