Kanno M, Satoh M, Kurihara S, Hamawaki M, Honda M, Tsurumi Y
Department of Cardiovascular Surgery, Honda Memorial Hospital, Koriyama, Japan.
Kyobu Geka. 1994 May;47(5):387-90.
Three patients with grade 3 aortic regurgitation caused by rare congenital quadricuspid valve underwent aortic valve replacement. Patients were two females (51 and 45 years old) and a 51 year-old male. The first case showed 2 equal larger and 2 equal smaller valves. In the latter two cases, 4 equal sized cusps were noted. Fibrous trabeculations bridging the aortic wall and the commissures, giving an appearance of a hammock, were noted in the third case. Small fenestations were also noted in two cusps in this case. These findings may suggest dysplastic feature of the quadricuspid aortic valve. Hypertension seemed to have played an important role in the occurrence of regurgitation in their 4th or 5th decade of life. Their postoperative courses were uneventful.
三名因罕见的先天性四叶式主动脉瓣导致重度主动脉瓣反流的患者接受了主动脉瓣置换术。患者为两名女性（分别为51岁和45岁）和一名51岁男性。第一例显示有两个较大且相等的瓣膜以及两个较小且相等的瓣膜。后两例中，可见4个大小相等的瓣叶。在第三例中，观察到有纤维性小梁连接主动脉壁和瓣叶连合处，呈现出吊床样外观。该例中两个瓣叶还可见小的开窗。这些发现可能提示四叶式主动脉瓣存在发育异常特征。高血压似乎在他们40多岁或50多岁时反流的发生中起了重要作用。他们术后恢复过程顺利。
