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  • Title: [Experiences on surgical treatment of severe aortic valve stenosis: a report of 171 cases].
    Author: Cui Y, Lu FL, Xu ZY, Zou LJ, Wang ES, Wang ZN, Zhang BR.
    Journal: Zhonghua Wai Ke Za Zhi; 2008 Sep 01; 46(17):1322-4. PubMed ID: 19094563.
    Abstract:
    OBJECTIVE: To analyze the experiences on surgical treatment of severe aortic valve stenosis. METHODS: From December 1990 to December 2006, 171 patients with severe aortic valve stenosis underwent aortic valve replacement (AVR). There were 135 males and 36 females aged from 10 to 75 years old, with a mean of (45.8 +/- 15.6) years old. The intervals between the first episode of exertion dyspnea and administration to operation were 2 months to 52 years. The pathological lesions of the group were rheumatic aortic valve stenosis in 75 cases, calcified aortic stenosis in 66 cases, bicuspid aortic valve in 26 cases and other congenital aortic valve stenosis in 4 cases. One hundred and twenty-four patients underwent AVR, 7 AVR combined with replacement of the ascending aorta, 5 AVR with coronary artery bypass grafting, 19 AVR with mitral valve plasty (MVP), 8 AVR with plasty of the ascending aorta and 8 AVR with enlargement of the aortic root. RESULTS: The averaged operation time was (4.4 +/- 0.6) h. Cardiopulmonary bypass (CPB) time was (124.7 +/- 38.5) min and the aorta clamp time was (78.3 +/- 21.7) min. The averaged blood loss during operation was (754.5 +/- 518.4) ml. All the procedures were successfully performed and all patients were weaned off CPB uneventfully. The indication of early complications was 12.3% (21/171), including low cardiac output syndrome in 7 cases, multi-organ failure in 3 cases, endocarditis in 1 case, renal dysfunction in 4 cases, ventricular fibrillation in 1 case, excessive bleeding in 2 cases, III atrial-ventricular block in 2 cases, and mediastinal infection in 1 case. The total mortality was 5.8% (10/171) with the main causes as cardiac failure for 4 cases, arrhythmia for 1 case, multi-organ failure for 4 cases, and infectious endocarditis for 1 case. CONCLUSIONS: Successful management of severe aortic valve stenosis requires sophisticated surgical techniques and experienced peri-operative care. Satisfactory results can be achieved if valve replace surgery is performed adequately.
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