Coralli R J, Dorney E R, Walter P F
Clin Cardiol. 1987 Jul;10(7):419-22. doi: 10.1002/clc.4960100710.
The Teflon disc of Beall valves is subject to extraordinary wear and tear. Clinical evidence of valvular dysfunction is critical in following patients who have implanted Beall valves. We describe 4 patients with the interesting auscultatory finding of intermittent mitral regurgitation. Each of these patients demonstrated severe wear of the Teflon disc with abnormal intermittent disc tilting noted at cardiac catheterization. Intermittent mitral regurgitation in patients with Beall valves in the mitral position heralds severe valvular dysfunction and should prompt urgent cardiac catheterization and valve replacement.
比尔瓣膜的聚四氟乙烯圆盘容易出现异常磨损。对于植入比尔瓣膜的患者，瓣膜功能障碍的临床证据对于随访至关重要。我们描述了4例患者，他们有间歇性二尖瓣反流这一有趣的听诊发现。这些患者每一位的聚四氟乙烯圆盘都有严重磨损，在心导管检查时发现圆盘间歇性异常倾斜。二尖瓣位植入比尔瓣膜的患者出现间歇性二尖瓣反流预示着严重的瓣膜功能障碍，应促使进行紧急心导管检查和瓣膜置换。
