Open heart surgery during pregnancy--case report.

A case of a 32-year-old woman in her 7th month of pregnancy presented with intractable pulmonary edema due to mitral restenosis is reported. Open-heart mitral commissurotomy was done as an emergency procedure. She continued pregnancy to term after the operation and delivered a healthy female baby. The literature related to "the closed" and "open" heart surgery during pregnancy has been reviewed.