title: [Postpartum pulmonary hypertension].
abstract: Pulmonary hypertension (PH) in pregnancy is a rare disorder that carries a high risk to mother and child, and as such, it is considered a contraindication to becoming pregnant. However, there are few published reports related to the diagnosis of this condition after delivery. We describe three PH cases diagnosed after their normal pregnancies and deliveries. Although the causes are unknown, several mechanisms such as hypercoagulation, placental hypoxia or amniotic fluid embolism have been considered as possible causes. It is difficult to define whether a PH diagnosed in the postpartum period, relates to an earlier asymptomatic PH period that was triggered by the physiological stress of labor or if it is a recently acquired condition. Despite the lack of data to support the absence of PH previous to pregnancy in our three patients, lack of events during this period, asymptomatic and normal deliveries, lead us to believe that they did not suffer this disease prior to pregnancy; considering that high hemodynamic demands impair a ventricle with little reserve, and its subsequent appearance at time of delivery.
authors: Instituto Cardiovascular de Rosario, Rosario, Santa Fe, Argentina. E-mail: escalantejp@icronline.com.
authors: Juan Pablo
authors: JP
authors: Escalante
authors: Ana
authors: A
authors: Diez
authors: Marcelo
authors: M
authors: Figueroa Casas
authors: Alejandro
authors: A
authors: Lasave
authors: Guillermo
authors: G
authors: Cursack
authors: Carlos
authors: C
authors: Poy
authors: María Soledad
authors: MS
authors: Rodríguez
authors: Marcela
authors: M
authors: Galuppo
authors: Gerardo
authors: G
authors: Zapata
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis*; D049590:Postpartum Period; D011247:Pregnancy; D035583:Rare Diseases / Q000175:diagnosis; D055815:Young Adult
keywords: postpartum; pregnancy; pulmonary hypertension; sildenafil