Percutaneous balloon valvuloplasty for severe mitral stenosis during pregnancy: a review of therapeutic options.

A woman presented at 29 weeks' gestation with previously undiagnosed severe mitral stenosis. She did not respond to medical therapy, and underwent successful percutaneous balloon mitral valvuloplasty with complete resolution of her symptoms. The remainder of her pregnancy was uncomplicated, and she delivered a healthy infant at 40 weeks' gestation. Percutaneous balloon valvuloplasty offers an innovative alternative to standard surgical therapy if medical management is unsuccessful.