Abe M, Sakai A, Lin Z B, Hanayama N, Oosawa M
Department of Cardiovascular Surgery, Seirei Hamamatsu General Hospital, Hamamatsu, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1996 Apr;44(4):545-7.
We reported a patient in whom slight congestive heart failure gradually developed 20 years after mitral valve replacement with a Delrin disc Björk-Shiley valve prosthesis. Although no evident cause of prosthetic valve malfunction could be detected preoperatively, the mitral prosthesis was excised and replaced uneventfully with a 29 mm St. Jude Medical valve prosthesis. At gross inspection, marked wears of the Delrin disc surface and strut shaped indentations were present. These disc variance, occurred much earlier than initially predicted by Dr. Björk, allowed prosthetic valve malfunction. The patient with this specific model should be carefully followed-up, if necessary, performed reoperation.
我们报告了一例患者，该患者在使用德林盘式比约克-希利瓣膜假体进行二尖瓣置换术后20年逐渐出现轻度充血性心力衰竭。尽管术前未检测到人工瓣膜故障的明显原因，但切除了二尖瓣假体并顺利更换为29毫米圣犹达医疗瓣膜假体。大体检查发现，德林盘表面有明显磨损和支柱状凹痕。这些盘的变化比比约克博士最初预测的要早得多，导致了人工瓣膜故障。对于使用这种特定型号的患者，如有必要应仔细随访并进行再次手术。
