AI Article Synopsis
- Between December 1987 and July 1992, 300 patients with symptomatic mitral stenosis underwent balloon mitral valvuloplasty, achieving a significant increase in mitral area from 0.88 to 2.19 cm² in most cases.
- Despite some complications including four deaths and occurrences of cardiac tamponade, the procedure was deemed successful in 284 patients, with a long-term follow-up showing 87% maintained mitral area improvements after a mean of 40 months.
- Factors like valvular motility and echocardiographic scores were identified as predictors for both immediate success and the likelihood of late complications, suggesting balloon mitral valvuloplasty is a preferred treatment for mitral stenosis.
Article Abstract
Between December 1987 and July 1992, we performed a balloon mitral valvuloplasty to 300 patients aged 48 +/- 23 years, with pure or predominant, symptomatic mitral stenosis, with an hemodynamic area < 1.5 cm2 and a mean echocardiographic score of 8.8 +/- 1.3 (6-13). Young subjects with mobile and flexible valves as well as elders with highly damaged valves were included. A transeptal technique employing 2 balloons was used in 97% of cases. There were 3 failures and 9 deficient results. In 284 patients, the procedure was considered successful with a mean increase in mitral area (measured using modified Gorlin's formula) from 0.88 +/- 0.13 to 2.19 +/- 0.38 cm2. Four patients died two due to a left ventricular traumatism, one due to an irreversible low cardiac output and one due to a massive systemic embolism. In five, a cardiac tamponade was treated with pericardiocentesis or surgery. One hundred patients were followed for a mean of 40 +/- 3 months. Mitral areas remained over 1.5 cm2 in 87% and 14 had a significant reestenosis. The latter had an initial echocardiographic score over 8 or previous surgical commissurotomy. Multifactorial analysis identified valvular motility and global echocardiographic scores as predictors of immediate success. Likewise, the last parameter and subvalvular thickening were predictors of late reestenosis and of increase in mitral regurgitation post valvuloplasty. According to our experience, percutaneous balloon mitral valvuloplasty is a first choice therapeutic alternative in patients with mitral stenosis.
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