Successful preterm delivery in a patient with severe mitral stenosis.

We present the case of a 36-year-old woman who was diagnosed with severe mitral stenosis in the 30th week of a pregnancy that was complicated by complete placenta previa and placenta percreta. With medical management, she successfully carried the pregnancy to fetal viability and was delivered by cesarean section before undergoing percutaneous balloon mitral valvuloplasty.