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Mitral valve repair for mitral regurgitation secondary to coronary artery disease
Insights
Mitral regurgitation from ischemic heart disease is serious. Mitral valve repair offers better survival and fewer complications than replacement, especially for patients with reduced heart function.
Area of Science:
- Cardiology
- Cardiac Surgery
Background:
- Mitral regurgitation secondary to ischemic heart disease is associated with high mortality.
- Effective treatment strategies are crucial for improving patient outcomes.
Purpose of the Study:
- To evaluate the long- and short-term outcomes of mitral regurgitation correction in patients with ischemic heart disease.
- To compare the efficacy of mitral valve repair versus replacement.
Main Methods:
- Retrospective analysis of 141 patients with ischemic heart disease and mitral regurgitation.
- Patients underwent complete coronary revascularization and either mitral valve repair (101 patients) or replacement (40 patients).
- Preoperative left ventricular function and recent myocardial infarction were assessed as outcome determinants.
Main Results:
- Both mitral valve repair and replacement provided good short- and long-term palliation.
- Mitral valve repair was associated with significantly better survival rates compared to replacement, particularly in patients with low ejection fraction.
- Mitral valve repair was feasible in 70% of patients and associated with reduced risks of thromboembolism, hemolysis, and infection.
Conclusions:
- Mitral valve repair is a superior option to valve replacement for patients with ischemic mitral regurgitation, offering better survival and fewer complications.
- Preserving the mitral apparatus is beneficial, especially for patients with compromised left ventricular function.
- The benefits of mitral valve repair outweigh the surgical effort, particularly in high-risk patients.
Abstract:
Mitral regurgitation secondary to ischemic heart disease carries a significant mortality in the untreated patient. We report on 141 patients with mitral regurgitation secondary to ischemic heart disease who underwent complete coronary revascularization and correction of mitral regurgitation by either repair (101 patients) or replacement (40 patients). Good long- and short-term palliation was obtained. Left ventricular function (ejection fraction) and recent myocardial infarction were important preoperative determinants of outcome. Repair of the mitral apparatus rather than valve replacement was associated with better long- and short-term survival, especially in the patient with a low ejection fraction. The repaired valve is durable and repair minimizes the risks of thromboembolism, hemolysis, anticoagulation, and intracardiac infection associated with prosthetic valve replacement. Mitral valve repair was possible in 70% of the patients in this series. The benefit to the patient, especially the patient with compromised ventricular function, compensates the surgeon for any extra effort involved in conservation of the mitral apparatus.