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  • Title: What to expect after tricuspid valve replacement? Long-term results.
    Author: Iscan ZH, Vural KM, Bahar I, Mavioglu L, Saritas A.
    Journal: Eur J Cardiothorac Surg; 2007 Aug; 32(2):296-300. PubMed ID: 17555971.
    Abstract:
    OBJECTIVE: Current knowledge in long-term results of tricuspid valve replacement is limited. Present study reviews our experience from a consecutive series. METHODS: Forty-two patients (16 male, 26 female; mean age: 33+/-15) underwent tricuspid valve replacement between March 1987 and December 2004. The etiology was rheumatic in 64%, Ebstein's anomaly in 31%, and endocarditis in 5%. Nineteen patients were in New York Heart Association (NYHA) Class III functional capacity (45%), and 13 in class IV (31%). Twenty patients (48%) underwent isolated tricuspid valve replacement. The remaining underwent combined (mitral and/or aortic) valve replacements. Tricuspid replacement device was mechanical in 31% and bioimplant in 69%. RESULTS: Hospital mortality was 26%. Rheumatic etiology, reoperation and elevated pulmonary artery pressure were associated with higher early mortality. The patients with decreased functional capacity (NYHA Class III/IV), congestive symptoms and rheumatic origin were more prone to low cardiac output development. The Kaplan-Meier survivals were 37% at 10 years and 30% at 15 years. The 10-year event-free survival was 31%. Elevated pulmonary artery pressure and rheumatic etiology unfavorably affected the long-term results. The average functional capacity in survivors improved significantly after operation. CONCLUSIONS: Any tricuspid disease not amenable to repair thus necessitating replacement is an unfortunate situation since both the short and long-term results of valve replacement are suboptimal in regard to those of left-sided valve replacements, probably due to different structural and geometrical characteristics of right ventricle and the low-pressure venous system hemodynamics. Etiology, clinical presentation and pulmonary vascular hemodynamics are major determinants of the outcome.
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