Abstract

BackgroundTricuspid valve replacement is seldom used in clinical practice, but the choice between mechanical and biologic prostheses remains controversial. MethodsBetween 1977 and 2002, 97 patients underwent tricuspid valve replacement and were followed at the Montreal Heart Institute Valve Clinic. Patients underwent replacement with bioprostheses (n = 82) and mechanical valves (n = 15). ResultsPatients with bioprosthetic tricuspid replacements averaged 53 ± 13 years of age compared with 48 ± 11 years in those with tricuspid mechanical valve replacements (p = 0.2). Isolated tricuspid valve replacement was performed in 11 patients (73%) in the mechanical valve group compared with 31 patients (38%. p = 0.01) in the bioprosthetic replacement group. In patients undergoing bioprosthetic tricuspid replacement, 51 (62%) underwent multiple associated valve replacements. The 5-year survival after tricuspid replacement averaged 60% ± 13% in the mechanical valve group and 56% ± 6% in the biologic replacement group (p = 0.8). The 5-year freedom rate from tricuspid valve reoperation averaged 91% ± 9% in patients with mechanical valves and 97% ± 3% in those with biologic valves (p = 0.2). ConclusionsPatient survival after tricuspid valve replacement is suboptimal but related to the clinical condition at operation. The use of biologic prostheses for tricuspid valve replacement remains a good option in young patients because of limited life expectancy unrelated to the type of tricuspid prostheses at long-term follow-up.

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