Sigwart U, Gleichmann U, Schmidt H, Borst H G
Thoraxchir Vask Chir. 1976 Oct;24(5):397-400. doi: 10.1055/s-0028-1095953.
29 patients with Lillehei-Kaster vale prostheses, 22 in aortic position and 7 in mitral position, were examined. With small aortic valves (A 14 - A 16) mean gradients averaged 32 mm Hg, valve area varied between 1 and 1.2 cm2. Only size A 20 and larger showed satisfying gradient and valve areas of 1.9 cm2 and greater. The mitral gradients averaged between 10 and 5 mm Hg according to size and valve areas were about 1.6 cm2. The maximal measured opening angle of the pivoting disk averaged 64degrees in the aortic valves and 61degrees in the mitral valves; complete opening (80degrees) was not observed.
对29例使用Lillehei-Kaster瓣膜假体的患者进行了检查，其中22例为主动脉瓣位，7例为二尖瓣位。对于小型主动脉瓣（A14 - A16），平均压差为32 mmHg，瓣口面积在1至1.2 cm²之间变化。只有A20及更大尺寸的瓣膜显示出令人满意的压差，瓣口面积为1.9 cm²及更大。二尖瓣压差根据尺寸平均在10至5 mmHg之间，瓣口面积约为1.6 cm²。在主动脉瓣中，枢轴圆盘测得的最大开口角度平均为64度，在二尖瓣中为61度；未观察到完全打开（80度）的情况。
