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[Mitral valve replacement, results in 160 patients]
Archivos Del Instituto De Cardiologia De Mexico
|November 1, 1978
Summary
This study presents results from 163 mitral valve replacements using mechanical prostheses, showing improved long-term function and rehabilitation for survivors. Postoperative cardiac pacing aids in managing arrhythmias, enhancing patient outcomes.
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Clinical Outcomes Research
Context:
- Presents findings from 163 mitral valve replacement surgeries performed between 1972 and 1977.
- Highlights the use of mechanical mitral prostheses (Starr-Edwards and Bjork-Shiley) in a Mexican cohort.
- Details patient demographics, including age, sex, and pre-existing conditions like rheumatic fever and cardiac insufficiency.
Purpose:
- To present the results of mitral valve replacement using mechanical prostheses.
- To analyze factors contributing to improved patient outcomes and long-term rehabilitation.
- To evaluate the role of temporal external cardiac pacing in managing postoperative arrhythmias.
Summary:
- 163 mitral valve replacements were performed on 160 patients (8-57 years old), with 67% having a history of rheumatic fever and 50% experiencing cardiac insufficiency.
- Postoperative complications included arrhythmias (32%), low cardiac output (21%), and infections (9%). Operative mortality varied based on procedure complexity.
- Long-term follow-up of 130 survivors showed significant functional improvement, with 81% in NYHA Class I and 16% in Class II after an average of 29 months.
Impact:
- Mitral valve replacement with mechanical prostheses demonstrates positive long-term functional and socio-economic rehabilitation for survivors.
- Effective management of postoperative arrhythmias, particularly with temporal external cardiac pacing, is crucial for improved outcomes.
- The study contributes to understanding the efficacy of mechanical mitral valve prostheses in a specific patient population.