Aortic stenosis and pregnancy.

Pregnancy in patients with aortic stenosis results in a maternal mortality rate of 17.4% and perinatal mortality rate of 31.6%. Medical treatment, valve replacement and termination of pregnancy are the main modes of therapy. The number of cases reported in the literature is small, and the indications for selecting one method of management over the others have not been established. A case is presented that illustrate some of the difficulties encountered in the management of these patients.