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[Mitral stenosis correction by double catheter-balloon valvuloplasty technique]
C V Ayres1, L F Cardoso, M Grinberg
1Instituto do Coração do Hospital das Clínicas-FMUSP.
Arquivos Brasileiros De Cardiologia
|January 1, 1995
Summary
The double balloon percutaneous mitral valvuloplasty technique (PMV2B) offers effective, long-term symptom improvement for select mitral stenosis patients. This procedure demonstrates a low complication rate and sustained benefits over one year.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Mitral stenosis is a significant cause of morbidity.
- Percutaneous mitral valvuloplasty (PMV) is an established treatment option.
- The double balloon technique (PMV2B) aims to improve procedural outcomes.
Purpose of the Study:
- To evaluate the long-term efficacy and safety of the double balloon percutaneous mitral valvuloplasty technique (PMV2B).
Main Methods:
- Sixty-eight patients with symptomatic mitral stenosis underwent PMV2B.
- Patients were followed for one year with clinical and echocardiographic assessments.
- Exclusion criteria included prior thromboembolism, other cardiac conditions, intracavitary thrombus, or significant mitral regurgitation.
Main Results:
- Overall, 89% of patients completed one-year follow-up without cardiac events.
- Hemodynamic parameters improved significantly post-procedure, though cardiac index did not.
- Mitral regurgitation increased in 28% of patients, becoming moderate in two cases.
- Mitral valve area (MVA) showed a significant reduction between immediate post-procedure and one-year follow-up.
- The majority of patients remained in functional class I/II at one year.
Conclusions:
- PMV2B is an attractive treatment for selected symptomatic mitral stenosis patients.
- The technique provides effective symptomatic improvement sustained at one year with a low complication rate.
- Despite a reduction in MVA over time, the clinical benefits are maintained.