Percutaneous balloon valvotomy for patients with mitral stenosis: Initial and follow-up results
1991; Elsevier BV; Volume: 121; Issue: 2 Linguagem: Inglês
10.1016/0002-8703(91)90714-s
ISSN1097-6744
AutoresPaul N. Casale, William J. Stewart, Patrick L. Whitlow,
Tópico(s)Cardiac pacing and defibrillation studies
ResumoPercutaneous double balloon mitral valvotomy (PMV) was performed in 25 patients with severa mitral stenosis who were followed for at least 6 months after the procedure. There were 22 women and 3 men, with a mean age of 51 ± 14 years (range, 27 to 74). Hemodynamic and angiographic findings were evaluated before and after PMV and clinical status was assessed at follow-up. There was a significant decrease in mitral gradient following PMV, from 15.4 ± 5.1 to 5.0 ± 2.6 mm Hg (p < .0001); an increase in cardiac output, from 4.6 ± 1.1 to 5.2 ± 1.1 L/min (p < .01); and an increase in calculated mitral valve area, from 0.9 ± 0.2 to 2.2 ± 0.6 cm2 (p < 0.0001). Mitral regurgitation developed or increased in severity in six patients (24%). At the time of follow-up (mean, 12 ± 5 months), three patients required elective mitral valve replacement for symptomatic mitral regurgitation and 91% (20 of 22) of the remaining patients had continued improvement in functional class. PMV can safely be performed in properly selected patients with symptomatic mitral stenosis with good immediate and follow-up results.
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