Fukunaga Naoto, Butany Jagdish, Feindel Christopher M
Division of Cardiovascular Surgery and Pathology, Peter Munk Cardiac Centre, Toronto General Hospital, University of Toronto, University Health Network, Toronto, ON, Canada.
J Card Surg. 2020 Feb;35(2):454-456. doi: 10.1111/jocs.14348. Epub 2019 Nov 15.
A 58-year-old man was admitted for reoperation for severe aortic stenosis in a previously preserved bicuspid aortic valve (BAV). He had undergone valve-sparing root replacement (VSSR) for dilated aortic root 6 years ago. Transesophageal echocardiography following VSSR showed good valve function with no aortic incompetence. However, the BAV became stenotic causing shortness of breath. At reoperation, the preserved BAV was noted to be fibrotic and calcified and had a fixed rigid small orifice. It was replaced with a biological valve plus root enlargement. Macroscopic finding showed thickening of the cusps and nodular calcification. Microscopic examination revealed severe nodular calcification.
一名58岁男性因先前保留的二叶式主动脉瓣（BAV）重度主动脉瓣狭窄而入院接受再次手术。他6年前因主动脉根部扩张接受了保留瓣膜的根部置换术（VSSR）。VSSR术后经食管超声心动图显示瓣膜功能良好，无主动脉瓣关闭不全。然而，BAV出现狭窄，导致呼吸急促。再次手术时，发现保留的BAV纤维化且钙化，有一个固定的刚性小孔。用生物瓣膜加根部扩大术进行了置换。宏观检查显示瓣叶增厚和结节状钙化。显微镜检查发现严重的结节状钙化。
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