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Unusual sequelae after percutaneous mitral valvuloplasty: a Doppler echocardiographic study
J P O'Shea1, V M Abascal, G T Wilkins
1Department of Medicine, Massachusetts General Hospital, Boston 02114.
Journal of the American College of Cardiology
|January 1, 1992
Summary
Percutaneous mitral valvuloplasty effectively treats mitral stenosis, improving valve area and reducing pressure. While generally safe, rare complications like leaflet rupture or tears can occur but are manageable.
Area of Science:
- Cardiology
- Interventional Cardiology
- Echocardiography
Background:
- Percutaneous mitral valvuloplasty (PMV) is an emerging treatment for mitral stenosis.
- Assessing the procedural sequelae of PMV is crucial for patient safety.
Observation:
- Doppler echocardiography was prospectively used before and after PMV in 172 patients.
- Key hemodynamic parameters including mitral valve area, mean gradient, and left atrial pressure were measured.
Findings:
- PMV significantly increased mitral valve area (0.9 to 2 cm²) and decreased mean gradient (16 to 6 mm Hg) and left atrial pressure (24 to 14 mm Hg).
- Four percent (6/172) of patients experienced unusual complications, including leaflet rupture, chordae tendineae rupture, a double-orifice valve, and leaflet tears.
- These rare complications resulted in varying degrees of mitral regurgitation.
Implications:
- PMV demonstrates significant hemodynamic benefits for mitral stenosis.
- While rare, potential echocardiographic sequelae must be recognized and monitored post-procedure.
- All identified complications were managed successfully without the need for mitral valve replacement.