Three cases of pregnancy in patients with severe pulmonary arterial hypertension: experience of a single unit.

Pregnancy in patients with severe pulmonary arterial hypertension is a high risk situation, which makes pregnancy prevention or termination in the first trimester advisable. For this reason, patients of reproductive age with this pathology are referred for gynecology consultation. Since our unit began operating in 1999, we have had three pregnant patients with severe pulmonary arterial hypertension--one our patient and the other two referred from other centers. In this article we describe these three cases and review the literature on pregnancy and pulmonary arterial hypertension.