Sareli P, Chun R
Department of Medicine, Baragwanath Hospital, Johannesburg.
S Afr Med J. 1991 Feb 16;79(4):221-2.
Mechanical prosthetic valve regurgitation may be either periprosthetic or intraprosthetic. The latter is usually mild, occurring in the majority of normally functioning valves and is due to the 'regurgitant flow' closing the valve. An unusual case is reported of intermittent intraprosthetic regurgitation through a normally functioning aortic Medtronic-Hall prosthesis caused by tissue ingrowth below the valve 4 years after implantation.
机械人工瓣膜反流可分为瓣周反流或瓣内反流。后者通常较轻，在大多数功能正常的瓣膜中都会出现，是由“反流”关闭瓣膜所致。本文报告了一例罕见病例，植入4年后，瓣膜下方组织向内生长，导致一枚功能正常的美敦力 - 霍尔主动脉瓣假体出现间歇性瓣内反流。
