Saudi Guidelines on the Diagnosis and Treatment of Pulmonary Hypertension: Pregnancy in pulmonary hypertension.

Pregnancy in pulmonary hypertension (PH) is known to be associated with high morbidity and mortality. The physiological changes occur during normal pregnancy, such as increase blood volume and cardiac output (CO) may be detrimental in PH patients. Several practice guidelines advise against pregnancy and even recommend termination of pregnancy. Occasionally PH may be diagnosed for the first time during pregnancy, as stress of pregnancy can unmask previously undiagnosed PH in an asymptomatic individual. This narrative review provides a detailed discussion about the physiologic parameters associated in pregnancy and their negative effect on the right ventricle. It also gives practical evidence-based recommendations about different management issues in PH pregnant patients.