Maroñas J M, Rufilanchas J J, Villagra F, Tellez G, Agosti J, Figuera D
Am Heart J. 1977 Mar;93(3):316-20. doi: 10.1016/s0002-8703(77)80250-0.
Of 193 patients with Björk-Shiley mitral valve prostheses, replacement was necessary in 8 (4.1%). The reasons for reoperation were: detachment (4), thrombosis (1), technical error (1), and late disc entrapment (2). Five of these patients died (62.5%), the death being directly related to the need for urgent operation because of low cardiac output. We recommend avoiding the use of the larger sized Björk-Shiley prostheses, since striking of the disc against the ventricle wall, probably consequent to postoperative decrease in heart size, may appear even 1 year after implantation of the prosthesis. An early diagnosis and early reoperation offer these patients a much more favorable prognosis.
在193例植入比约克-希利二尖瓣假体的患者中，8例（4.1%）需要进行置换。再次手术的原因包括：瓣膜分离（4例）、血栓形成（1例）、技术失误（1例）和晚期瓣盘卡瓣（2例）。其中5例患者死亡（62.5%），死亡与因心输出量低而需要紧急手术直接相关。我们建议避免使用较大尺寸的比约克-希利假体，因为即使在假体植入1年后，也可能出现瓣盘撞击心室壁的情况，这可能是术后心脏尺寸减小所致。早期诊断和早期再次手术可为这些患者带来更有利的预后。
