Ohkado A, Akiyama K, Hirota J, Shiina Y
Department of Cardiovascular Surgery, Iwaki Kyoritsu General Hospital, Fukushima, Japan.
Kyobu Geka. 1995 Nov;48(12):1013-5.
A 49-year-old woman who underwent mitral valve replacement with 29 mm Mitroflow pericardial valve in 1985 started to have severe hematuria, anemia and icterus around May 1994. She was diagnosed to have mitral regurgitation with hemolytic anemia due to structural deterioration of the prosthetic valve. She underwent replacement of the prosthetic valve with 29 mm St. Jude medical mechanical valve, which alleviated the symptoms remarkably. The explanted valve showed an extensive cuspal tear and prolapse close to the commissure and poor endothelialization of the inflow surface of the frame. In our experience the rate of structural deterioration of the Mitroflow valve is so high that we discontinued using this bioprosthesis.
一名49岁女性于1985年接受了二尖瓣置换术，植入了29毫米的米特罗弗心包瓣膜。1994年5月左右，她开始出现严重血尿、贫血和黄疸。她被诊断为因人工瓣膜结构恶化导致二尖瓣反流伴溶血性贫血。她接受了人工瓣膜置换，植入了29毫米的圣犹达医疗机械瓣膜，症状明显缓解。取出的瓣膜显示有广泛的瓣叶撕裂，靠近瓣环处脱垂，且框架流入面内皮化不良。根据我们的经验，米特罗弗瓣膜的结构恶化率很高，因此我们停止使用这种生物假体。
