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Mitral regurgitation: a new clinical perspective
M Enriquez-Sarano1, T A Orszulak, H V Schaff
1Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic Rochester, MN 55905, USA.
Mayo Clinic Proceedings
|December 31, 1997
Summary
Early surgery for severe mitral regurgitation is advised. Despite medical treatment, patients face high mortality and morbidity, making timely intervention crucial for better outcomes in valvular heart disease.
Area of Science:
- Cardiology
- Cardiac Surgery
- Valvular Heart Disease
Background:
- Mitral regurgitation is a prevalent valvular heart disease, especially in older adults.
- Management timing for mitral regurgitation remains debated.
- Patients with flail leaflet mitral regurgitation experience significant annual mortality (6.3%) and morbidity, even with medical treatment.
Purpose of the Study:
- To evaluate the current clinical perspective on managing mitral regurgitation.
- To assess the impact of surgical correction on patient outcomes.
- To determine optimal timing for surgical intervention in severe mitral regurgitation.
Main Methods:
- Review of recent literature on mitral regurgitation management.
- Analysis of mortality and morbidity rates in medically and surgically treated patients.
- Evaluation of surgical outcomes, including operative mortality and valve repair feasibility.
Main Results:
- 90% of diagnosed mitral regurgitation patients either die or require surgery within 10 years.
- Left ventricular dysfunction post-surgery is a significant complication, linked to preoperative conditions.
- Surgical advancements offer low operative mortality (approx. 1% for <75 years) and high repair rates, even for anterior leaflet prolapse.
Conclusions:
- Early surgical correction of severe mitral regurgitation should be considered.
- Intervention before overt symptoms or left ventricular dysfunction may improve prognosis.
- Improved surgical techniques and outcomes support a proactive approach to severe mitral regurgitation.