Iha K, Koja K, Kuniyoshi Y, Akasaki M, Miyagi K, Kusaba A
Second Department of Surgery, Faculty of Medicine, University of Ryukyus, Okinawa, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1994 Jul;42(7):1073-6.
A 51-year-old woman, who had undergone aortic valve replacement (SJM 19 mm) and open mitral commissurotomy for aortic valve stenosis with regurgitation, and mitral stenosis, was admitted for redo surgery. We found discrete subaortic ring just below the prosthetic valve. The fibrous ring was resected and the aortic valve was replaced (SJM 21 mm) after augmentation of the aortic annulus by Nicks procedure. Mitral and tricuspid valves were replaced. Discrete subaortic stenosis after aortic valve replacement are mostly in cases with small prosthetic valve. The turbulence caused by the small valve may produce discrete subaortic ring.
一名51岁女性，因主动脉瓣狭窄伴反流及二尖瓣狭窄接受了主动脉瓣置换术（圣犹达医疗公司19毫米瓣膜）和直视二尖瓣交界切开术，此次因再次手术入院。我们在人工瓣膜下方发现了孤立性主动脉瓣下环。切除纤维环后，通过尼克手术扩大主动脉瓣环，然后更换了主动脉瓣（圣犹达医疗公司21毫米瓣膜）。同时置换了二尖瓣和三尖瓣。主动脉瓣置换术后的孤立性主动脉瓣下狭窄多见于人工瓣膜较小的病例。小瓣膜引起的血流紊乱可能会导致孤立性主动脉瓣下环的形成。
