Fetomaternal outcome in pregnancy beyond 40 weeks

Abstract

The purpose of this study was to find out mode of delivery, incidences of oligohydramnios, meconium stained amniotic fluid & perinatal outcome in pregnancy beyond 40wks. This retrospective observational clinical study was conducted inObstetric Dept. of MGMC & RI, puducherry. The study includes pregnant women who delivered at MGMC & RI labour room after their expected date of delivery. These patients were divided into 3 groups according to their gestational age i.e. 40-41 wks, 41-42 wks and ≥ 42wks. Different maternal outcome like incidence of oligohydrmnios, mode of delivery, incidence of meconium stained amniotic fluid during delivery, perinatal outcome in relation to low apgar score, Nicu admission, Meconium aspiration syndrome & antenatal, intranatal & neonatal death were analysed. Out of 402 cases 320 (79.6%) cases were in 40-41weeks 70(17.4%) cases were in 41-42 wks and, 12(2.9%) cases were beyond 42wks. Most of the cases were primigravida(71.9%) with mean maternal age of 24.19yrs & mean gestational age of 40.51 wks. Out of 402 cases 201 (50%) underwent spontaneous labour & 201(50 %) needed induction of labour. Most common causes of induction were oligohydramnios 88(43.78%) and pregnancy beyond 41 wks 89(44.27%).Most common mode of delivery was vaginal constituting 263(65.42%) cases. Fetal distress was the common indication for caesarean section. 35 (8.7%) babies were admitted to NICU most of the admissions were for transient tachypnoea of new born. Out of 402 cases unfortunately intrauterine fetal demise occurred in 5 cases(1.24%) without any risk factors. Among those delivered babies one baby suffered from erb's palsy and one died during neonatal period. Pregnancy beyond 40wks increases the chance of oligohydramnios & ceasarean section & NICU admission.