Long term results of surgery for prosthetic valve endocarditis
- PMID: 8012634
Long term results of surgery for prosthetic valve endocarditis
Abstract
Operative mortality, recurrence and late survival were analyzed in 64 patients operated for prosthetic valve endocarditis (PVE) between 1980-1992: age, sex, drug addiction, early vs. late PVE, micro-organism, sepsis at the time of surgery, indication for surgery, prosthesis type and site were assessed as potential risk factors. PVE developed after replacement for native valve endocarditis in 23 cases (Group A) and after replacement for other valvular disease in 41 patients (Group B). The overall operative mortality was 28.1% (18/64); 16 operative survivors underwent a second reoperation with eight operative deaths (50%), four of them a third procedure with two operative deaths (50%), and one patient had a successful fourth intervention. Female sex (p = 0.015) and sepsis at the time of surgery (p = 0.013), were found statistically significant independent predictors of operative mortality. Age (p:0.002), mechanical valves (p:0.05) and mitral position (p:0.03) were significant predictors of PVE recurrence. None of the risk factors considered were significant for late survival. Twelve-year actuarial survival for all patients was 52.11 +/- 10%; it was 33.3 +/- 13% for Group A and 73.4 +/- 14% for Group B (p:0.04). Patients with mechanical valves and bioprostheses had an actuarial survival of 39.5 +/- 15% and 48.5 +/- 14% respectively with no significant difference. PVE is still a challenging complication of heart valve replacement; patients with PVE after native valve endocarditis have a very poor outcome. Prompt prosthetic replacement is recommended whenever the antibiotic treatment is unsuccessful and/or the hemodynamic status deteriorates.
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