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(Circulation. 2001;103:1542.)
© 2001 American Heart Association, Inc.

Clinical Investigation and Reports

Isolated Mitral Valve Replacement With St Jude Medical Prosthesis

Long-Term Results: A Follow-Up of 19 Years

J. P. Remadi, MD; O. Baron, MD; C. Roussel, MD; P. Bizouarn, MD; Al Habasch, MD; P. Despins, MD; J. L. Michaud, MD; D. Duveau, MD

From the Cardiovascular Surgery Unit and Department of Anesthesiology, G. and R. Laënnec University Hospital, Nantes, France.

Correspondence to Dr J.P. Remadi, Cardiac Surgery Unit (Pr Poulain), Hopital Sud, 80054 Amiens, France.

Background—In this retrospective study, 440 patients received mitral valve replacements with the St Jude Medical prothesis. The last patient was operated on 10 years before the beginning of the follow-up. The extended follow-up was 19 years.

Methods and Results—Four hundred forty patients (sex ratio, 1.32 [men to women]; age, 60±11.4 years; age range, 7 to 75 years) were operated on from 1979 to 1987. All patients underwent isolated mitral valve replacement. Tricuspid plasty was the only associated procedure. The follow-up at 19 years was 98% complete. The overall actuarial survival rate was 63±3.3% at 19 years, and the actuarial survival rate (only valve related) was 83±2.7%. The operative mortality rate (0 to 30 days) was 4.09%. We found that 89.4% of the patients alive at 19 years were in NYHA class I/II. Multivariate analysis showed that age and sex were significantly correlated with valve-related mortality and that age, sex, NYHA class, and atrial fibrillation were significantly correlated with overall mortality. The linearized rates (percent patient-years) of thromboembolism, thrombosis, and hemorrhage were 0.69, 0.2, and 1, respectively. At 19 years, freedom from endocarditis and reoperation was 98.6±1% and 90±3%, respectively.

Conclusions—In this study, the very-long-term results confirm the excellent durability of the St Jude Medical prosthesis in the mitral position and show the difficulty of adjusting the anticoagulation protocol, even after long-term treatment.

Key Words: heart disease • surgery • valves • anticoagulants

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