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Cardiac valve replacement in elderly patients
Insights
Cardiac valve replacement in elderly patients shows similar indications to the general population. While early mortality is higher, long-term functional status is excellent, with aortic valve replacement yielding better results than mitral.
Area of Science:
- Cardiology
- Geriatric Medicine
- Cardiac Surgery
Background:
- Elderly patients represent a growing demographic undergoing cardiac procedures.
- Cardiac valve replacement is a critical intervention for valvular heart disease.
Purpose of the Study:
- To evaluate the outcomes of cardiac valve replacement in elderly patients (aged 65 and older).
- To compare the results of aortic versus mitral valve replacement in this age group.
Main Methods:
- Retrospective analysis of 65 consecutive elderly patients undergoing cardiac valve replacement.
- Comparison of early and late mortality, complications, and functional status with a younger cohort.
- Assessment of actuarial survival rates based on valve type and patient demographics.
Main Results:
- Elderly patients comprised 16% of all valve replacement cases.
- Thirty-day mortality was 4.6% in the elderly versus 0.9% in younger patients.
- Long-term functional status was excellent (NYHA Class I/II) for most survivors.
- Late mortality was higher for mitral valve replacement (15.1% per patient-year) compared to aortic valve replacement (3.9% per patient-year).
- Actuarial survival rates at 24 months were 88% for the total elderly group.
- Aortic valve replacement showed more favorable outcomes than mitral valve replacement in the elderly.
Conclusions:
- Indications for cardiac valve replacement in the elderly are consistent with the general population.
- Despite higher early risks, elderly patients achieve excellent long-term functional recovery after valve replacement.
- Aortic valve replacement appears to be a more gratifying procedure than mitral valve replacement in elderly patients.
Abstract:
Cardiac valve replacement in 65 consecutive elderly patients (aged 65 years and older) revealed that the indications for cardiac valve replacement in the elderly should be the same as those in the general population. These 65 patients represented 16% of the patients undergoing valve replacement. The mortality in the first 30 days after operation was 4.6% in the elderly group, compared with 0.9% in the group under 65 years of age. There were 26 significant but nonfatal early complications in the elderly patients, but their long-term functional status was excellent, most of the survivors ending up in either class I or class II of the New York Heart Association functional classification. The late mortality was 3.9% per patient year for aortic valve replacement and 15.1% for mitral with or without aortic valve replacement. The actuarial survival rates were 88% at 24 months and 55% at 54 months for the total elderly group, 86% at 36 months for those with aortic valve replacement, 85% at 24 months and 64% at 36 months for those with mitral valve replacement, 90% at 24 months and 77% at 42 months for the men, and 82% at 24 months and 68% at 42 months for the women. Aortic valve replacement was more common in the elderly than in the younger group because of the higher prevalence of congenital calcific aortic stenosis in the former, and this operation provided more gratifying results than mitral valve replacement in the elderly patients.