Amniotic fluid volume and onset of labor in physiological pregnancy

Perinatal outcome after ultrasound diagnosis of anhydramnios at term

The aim was to assess the maternal and fetal outcome in women who had labour induced for anhydramnios after 37 completed weeks of gestation. A retrospective study was conducted at the Rotunda Hospital from 1 January 2003 to 31 December 2007. All women with anhydramnios at term were identified from a review of ViewPoint® (computer software for antenatal scans performed), hospital data and the labour ward register. All women with a history of previous lower segment caesarean section (LSCS), current significant medical illness such as diabetes, hypertension, pre-eclampsia or ruptured membranes were excluded because the aim of the study was to focus specifically on low risk pregnancies with an incidental diagnosis of anhydramnios after 37 weeks' gestation. The maternal and fetal outcome parameters reviewed included: maternal age, parity, gestation, method of induction, mode of delivery, Apgar score and the requirement for obstetric or neonatal intervention. This study showed that anhydramnios is associated with a 56.6% LSCS rate in primigravida and a 19.0% LSCS rate in multigravida. Our study did not show any significant neonatal morbidity and there were no cases of mortality.