ABSTRACT
Angiotensin-converting enzyme (ACE) inhibitors have been widely used to control hypertension, but their use during gestation may result in fetal death, intra-uterine growth retardation, oligoamnium sequence, hypotension, acute renal failure and ductus arteriosus patency in the newborn. The aim of this case report is to highlight the risks of using this drug during gestation. The authors present a case of captopril use during pregnancy, whose newborn developed acute renal failure and ductus arteriosus patency early in the newborn period. This presentation strengthens the importance of not only monitoring amniotic fluid volume and fetal growth, but also, during the newborn period, control the weight gain, diuresis, systemic arterial pressure and renal function, mainly in the first 72 hours of life.