Federmann M, von Segesser L K, Ritter M, Jenni R
Department of Echocardiography, University Hospital, Zürich, Switzerland.
Eur J Cardiothorac Surg. 1996;10(8):705-6. doi: 10.1016/s1010-7940(96)80391-5.
Pseudoaneurysm formation after aortic homograft replacement in patients with active endocarditis is a common observation and usually occurs at the site of a former abscess or paravalvular leak in case of prosthetic valve endocarditis. A 53-year-old man with prosthetic endocarditis underwent aortic valve homograft replacement and developed a pseudoaneurysm at the right and noncoronary aortic sinus which was documented by Doppler echocardiography. Follow-up examination ten months after operation unexpectedly revealed a complete obliteration of the previously echo free space between the homograft and the native aortic root and, thus, spontaneous obliteration of the pseudoaneurysm.
活动性心内膜炎患者在主动脉同种异体移植置换术后发生假性动脉瘤是常见现象，在人工瓣膜心内膜炎时通常发生在既往脓肿或瓣周漏的部位。一名患有人工瓣膜心内膜炎的53岁男性接受了主动脉瓣同种异体移植置换术，在右冠状动脉和无冠状动脉主动脉窦处形成了假性动脉瘤，这通过多普勒超声心动图得以证实。术后十个月的随访检查意外发现，同种异体移植物与天然主动脉根部之间先前的无回声间隙完全消失，因此假性动脉瘤自发闭塞。
