Bortolotti U, Thiene G, Casarotto D, Mazzucco A, Gallucci V
Chest. 1980 Feb;77(2):235-7. doi: 10.1378/chest.77.2.235.
A rare complication of mitral valve replacement with the Hancock bioprosthesis was observed in three patients presenting with prevalent mitral stenosis and normally-sized left ventricular cavity. In the patients, a deep erosion of the left ventricular free wall was present which evolved into cardiac rupture in one of them. The laceration is ascribed to the friction between a prosthetic strut and the myocardium; a disproportion between the "high-profile" device and the left ventricular chamber is suggested to explain this complication, which may be avoided by employing a "low-profile" prosthesis.
在三名患有重度二尖瓣狭窄且左心室腔大小正常的患者中，观察到了使用汉考克生物瓣进行二尖瓣置换术后的一种罕见并发症。这些患者存在左心室游离壁的深度侵蚀，其中一名患者发展为心脏破裂。这种撕裂归因于人工瓣膜支柱与心肌之间的摩擦；有人提出“大尺寸”装置与左心室腔之间的不相称可解释这一并发症，采用“小尺寸”人工瓣膜可能避免这种并发症。
