This is a retrospective study on antenatal mothers with chronic hypertension detected either preconceptionally or before 20 weeks of gestation, carried out during a period of 6 months from February 2017 to July 2017 at Government Rajaji Hospital, Madurai. During that period a total of 198 mothers with hypertension were seen. Among them, 32 patients had chronic hypertension (16.2%). One patient was detected in previous pregnancy and continued antihypertensive medication postpartum as she was diagnosed to have chronic hypertension. All other patients were newly diagnosed before 20 weeks of gestation (96.8%). 5 patients out of 32 patients had superimposed preeclampsia (15.6%) among which 3 patients (60%) had super added proteinuria alone, one patient had HELLP syndrome (20%) and one patient had imminent eclampsia (20%). Objective: To study the incidence, associated risk factors, co-morbidities, complications and pregnancy outcome in antenatal mothers with chronic hypertension.

Keywords: Chronic Hypertension; Proteinuria; Preeclampsia.