Arikawa K, Chosa N, Kinjoh T, Masuda H, Ishibe R, Tabata D, Nishimura M, Morishita Y, Taira A
Department of Cardiovascular Surgery, National Minamikyushu Chuoh Hospital, Kagoshima, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1990 Dec;38(12):2401-3.
The congenital bicuspid aortic valves usually become stenotic with severe calcification or regurgitant due to infective endocarditis (IE). However, pure aortic valve regurgitation without calcification or IE may be occurred. We report seven these cases out of 30 bicuspid valved patients who underwent aortic valve replacements. Pathological findings of these resected valves revealed neither calcium deposit nor findings of infection, but commonly showed myxoid degeneration. They were operated on at the mean age of 39, while those with calcified bicuspid aortic valves had an average age of 56. Two rare cases in whom an anomalous fibrous band on the larger cusp attached to the aortic wall were also reported.
先天性二叶式主动脉瓣通常会因严重钙化而狭窄，或因感染性心内膜炎（IE）导致反流。然而，也可能出现无钙化或IE的单纯主动脉瓣反流。我们报告了30例接受主动脉瓣置换术的二叶式瓣膜患者中的7例此类病例。这些切除瓣膜的病理检查结果既未发现钙沉积，也未发现感染迹象，但常见黏液样变性。他们接受手术的平均年龄为39岁，而钙化性二叶式主动脉瓣患者的平均年龄为56岁。还报告了2例罕见病例，其中较大瓣叶上的异常纤维带附着于主动脉壁。
