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Post-infarction ischaemic mitral regurgitation: what determines the outcome
S K Choudhary1, A Bhan, R Sharma
1Cardiothoracic Sciences Centre, All India Institute of Medical Sciences, New Delhi.
Indian Heart Journal
|March 18, 2000
Summary
Ischaemic mitral regurgitation significantly impacts survival in coronary artery disease patients. Acute presentation and left ventricular dysfunction predict poor outcomes, highlighting the need for effective interventions.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Outcomes
Background:
- Ischaemic mitral regurgitation (IMR) is a critical factor influencing survival in patients with coronary artery disease.
- Understanding the outcomes and predictors of mortality in IMR is essential for improving patient management.
Purpose of the Study:
- To retrospectively analyze the overall outcomes of patients undergoing surgery for IMR.
- To identify determinants of early and late mortality in this patient cohort.
Main Methods:
- Retrospective analysis of 72 patients operated for IMR over 10 years.
- Data collected included patient demographics, clinical presentation, left ventricular function, mitral valve pathology, surgical procedure (repair vs. replacement), and follow-up data.
- Statistical analysis to identify predictors of mortality.
Main Results:
- Operative mortality was 18.1%, with low cardiac output being the primary cause of death.
- Significant predictors of early mortality included acute presentation and restricted leaflet motion.
- Late mortality was 46.2%, with a 5-year actuarial survival of 44.4% in operative survivors.
- Left ventricular dysfunction and restricted leaflet motion were identified as contributors to poor outcomes.
Conclusions:
- Ischaemic mitral regurgitation is associated with poor early and late survival.
- Left ventricular dysfunction and restricted leaflet motion are key contributors to adverse outcomes.
- Acute presentation is a significant predictor of increased early mortality in IMR patients.