论文部分内容阅读
In rheumatic mitro-aortic disease, especially in severe mitral valvular stenosis associated with middle aortic insufficiency, there are cases where severity of aortic valvular lesion does not call for replacement (moderate thickness and retraction of valvular tissue, little adherence of valvular commissure, insignificant calcification) but needs repairing for longterm improvement.Among the aortic valvular repairing methods for these cases (e.g.extending valvular tissue with pericardium or narrowing valvular commissures), the technique of annular retraction according to patients valvular tissue is prefered.From the results of applying this technique on 12 patients in recent years, there are several experiences to be shared in interfering indication, operating skills and post-operation observations.In general, this technique was limited to moderate anatomical lesions of aortic valve with incompetent levels ranging from 1.5 to 2.5 per 4; 3.0 or 4.0 monofilament was employed to suture aortic ring and tied onto a bougie installed in aortic orifice (2-4 sizes smaller than measurement prior to operation); incompetent levels were shown to reduce by at least ? of pre operation measurements in post-operation echocardigraphy and stabilized within three-month control.