Lamberti J J, Gupta D S, Falicov R, Anagnostopoulos C E
Chest. 1977 Jan;71(1):89-90. doi: 10.1378/chest.71.1.89.
A 24-year-old man presented with late stenosis of a cloth-covered Starr-Edwards valve (model 2320). Fibrous ingrowth occurred at the inflow orifice of the valve and all three struts were adherent to the aortic wall, creating a "tunnel" form of obstruction. The stenotic valve was replaced with a porcine heterograft, and the small aortic root was enlarged with a Dacron patch. This form of late prosthetic valve stenosis should have been prevented by enlargement of the aortic root at the time of valve insertion and by long-term anticoagulant therapy.
一名24岁男性因布包裹的斯塔尔-爱德华兹瓣膜（型号2320）晚期狭窄前来就诊。瓣膜流入孔处出现纤维组织长入，所有三个支柱均与主动脉壁粘连，形成“隧道”样梗阻。将狭窄瓣膜替换为猪异种移植物，并用涤纶补片扩大小主动脉根部。这种晚期人工瓣膜狭窄的情况本可通过瓣膜植入时扩大主动脉根部以及长期抗凝治疗来预防。
