Percutaneous balloon mitral valvuloplasty in comparison with open mitral valve commissurotomy for mitral stenosis during pregnancy

Percutaneous balloon mitral valvuloplasty in comparison with open mitral valve commissurotomy for mitral stenosis during pregnancy

Author Souza, José Augusto Marcondes de Autor UNIFESP Google Scholar
Martinez Filho, Eulogio Emilio Autor UNIFESP Google Scholar
Ambrose, John A. Google Scholar
Alves, Claudia Maria Rodrigues Autor UNIFESP Google Scholar
Born, Daniel Autor UNIFESP Google Scholar
Buffolo, Enio Autor UNIFESP Google Scholar
Carvalho, Antonio Carlos Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
St Vincents Hosp & Med Ctr
Abstract OBJECTIVES We sought to compare the maternal and fetal outcomes of patients with severe mitral stenosis submitted to percutaneous balloon dilation Versus open mitral valve commissurotomy (MVC) during pregnancy.BACKGROUND Heart failure in patients with mitral stenosis complicating pregnancy is a common problem in developing countries. Since 1984, percutaneous dilation of the mitral valve using a balloon catheter has become a therapeutic alternative to open heart surgery. Although the efficacy of percutaneous mitral valve balloon dilation is well established, its results have never before been compared viith the results of commissurotomy during pregnancy.METHODS We compared the clinical and obstetric complications in 45 women who were treated with percutaneous mitral valve balloon dilation (group I, n = 21; from 1990 to 1995) or open MVC (group II, n = 24; from 1985 to 1990) for severe heart failure due to mitral stenosis during pregnancy.RESULTS in our study, percutaneous balloon dilation of the mitral. valve had a success rate of 95% (Gorlin formula) and 90.5% (echocardiographic pressure half-time method), as demonstrated by the final mitral valve area achieved. This improvement was followed by a marked decrease in the mitral valve gradient, left atrial pressure and mean pulmonary artery pressure. Patients in both groups had similar improvements in symptoms. Patients who underwent percutaneous balloon dilation had significantly fewer fetal complications, with a reduction in fetal and neonatal mortality (1 death in group I vs. 8 in group II, p = 0.025).CONCLUSIONS Percutaneous balloon mitral valvuloplasty is safe and effective and appears to be preferable for the fetus, compared with open MVC during pregnancy. (J Am Coil Cardiol 2001;37:900-3) (C) 2001 by the American College of Cardiology.
Language English
Date 2001-03-01
Published in Journal of the American College of Cardiology. New York: Elsevier B.V., v. 37, n. 3, p. 900-903, 2001.
ISSN 0735-1097 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 900-903
Origin http://dx.doi.org/10.1016/S0735-1097(00)01184-0
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000167223700030
URI http://repositorio.unifesp.br/handle/11600/26491

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