Rumoroso J R, Arrizabalaga J I, Montes P M, Arriandiaga J R, Castellanos E, Barrenetxea J I
Department of Cardiology, Hospital de Cruces, Vizcaya, Spain.
J Cardiovasc Surg (Torino). 1995 Oct;36(5):443-5.
Intermittent aortic regurgitation is an unusual complication following a mechanical prosthesis replacement in the early postoperative period. Arterial pressure recording and echocardiographic assessment were enough to diagnose the prosthetic dysfunction. Reexploration of the valve confirmed the dysfunction, which was caused by a pannus of previous aortic valve replacement with the pulmonary valve. The pannus impeded normal closure of the leaflet in an intermittent way during diastole. Reorientation of the valve corrected the aortic insufficiency. Doppler ultrasound was a very useful noninvasive technique in order to evaluate the suspected prosthetic valve dysfunction in the immediate postoperative period.
间歇性主动脉反流是机械瓣膜置换术后早期一种不常见的并发症。动脉压记录和超声心动图评估足以诊断人工瓣膜功能障碍。再次手术探查瓣膜证实了功能障碍，其原因是先前主动脉瓣置换术时使用的肺动脉瓣形成了瓣周粘连。瓣周粘连在舒张期以间歇性方式阻碍瓣叶正常关闭。瓣膜重新定位纠正了主动脉瓣关闭不全。多普勒超声是一种非常有用的非侵入性技术，可用于评估术后早期可疑的人工瓣膜功能障碍。
