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Cardiac valve replacement. The rationale for earlier operation
The Western Journal of Medicine
|October 1, 1974
Summary
Cardiac valve replacement surgery showed low initial risk but high late mortality, with most deaths due to progressive heart disease. Early intervention is recommended before irreversible damage occurs.
Area of Science:
- Cardiology
- Cardiac Surgery
- Biomedical Engineering
Background:
- Valvular heart disease significantly impacts patient quality of life and survival.
- Cardiac valve replacement is a common intervention for severe valvular heart disease.
Purpose of the Study:
- To evaluate the long-term outcomes and mortality associated with cardiac valve replacement.
- To assess the efficacy of prosthetic valves in improving patient function and survival.
Main Methods:
- A retrospective analysis of 138 patients undergoing single or double cardiac valve replacement.
- Procedures maintained normothermia, coronary perfusion, and cardiac beating.
- Patients were followed for at least one year, with an average follow-up of 4.5 years.
Main Results:
- Hospital mortality was 3.6%.
- Late mortality was 27%, with 75% attributed to progressive cardiac disease.
- Prosthetic valve dysfunction accounted for 4% of late deaths.
- Only 50% of patients showed significant long-term improvement, with many remaining symptomatic.
Conclusions:
- Despite low operative risk and reliable prosthetic valves, long-term outcomes are concerning.
- High late mortality and poor functional results question the strategy of delaying surgery.
- Earlier cardiac valve replacement is advised to prevent irreversible myocardial damage.