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A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
Mitral balloon valvuloplasty by Inoue technique without echocardiographic standby
1Department of Cardiology, Charles Nicolle Hospital, Tunis, Tunisia, and Department of Cardiology, Chest Disease Hospital, Kuwait.
Annals of Saudi Medicine
|September 1, 1994
Summary
Mitral balloon valvuloplasty (MBV) using the Inoue technique effectively treats rheumatic mitral stenosis (MS). This minimally invasive procedure significantly improves mitral valve area and exercise tolerance while reducing pressure gradients and complications.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Rheumatic mitral stenosis (MS) is a significant cause of morbidity and mortality.
- Surgical commissurotomy has been the traditional treatment, but carries risks.
- Mitral balloon valvuloplasty (MBV) offers a less invasive alternative.
Purpose of the Study:
- To evaluate the efficacy and safety of the Inoue technique for mitral balloon valvuloplasty (MBV) in patients with symptomatic rheumatic mitral stenosis (MS).
- To assess the impact of MBV on echocardiographic parameters, hemodynamic measurements, and exercise capacity.
Main Methods:
- Eighty-five patients with symptomatic rheumatic MS underwent MBV using the Inoue technique.
- Echocardiographic and Doppler examinations were performed pre- and post-procedure.
- Exercise tolerance tests (ETT) were conducted before and after the procedure in a subset of patients.
- Echocardiographic scoring assessed valve thickening, leaflet mobility, calcification, and subvalvular apparatus involvement.
Main Results:
- Significant improvements were observed in mitral valve area (MVA), mitral gradient (MG), and mean left atrial pressure (LAP) post-MBV (P<0.0001).
- Exercise tolerance significantly increased after the procedure (P<0.0001).
- Complications included severe mitral regurgitation (MR) in 2.3% of patients; mild left-to-right shunt occurred in 40%.
Conclusions:
- Mitral balloon valvuloplasty by Inoue balloon is a safe and effective alternative to surgical commissurotomy for rheumatic mitral stenosis.
- Echocardiographic guidance is beneficial but not essential for successful MBV.
- The procedure leads to significant hemodynamic and functional improvements in patients with MS.
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