The Impact of use of Modified WHO Partograph on Labour Progress and Delivery: Outcome among Spontaneous and Induced Labour in Nulliparous Women at Term.

Labour is a normal physiological process considered by a progressive rise in frequency, intensity, and duration of uterine contractions resulting in effacement and dilatation of the cervix with descent of the fetus over the birth canal. Spontaneous or Induced labour has a significant role in the eventual mode of delivery and neonatal outcome. This study aims to compare mean duration of labour and maternofoetal outcome of spontaneous versus induced labour among nulliparous women. This was a prospective observational study conducted in the Department of Obstetrics and Gynecology in Bangabandhu Sheikh Mujib Medical University (BSMMU) from October 2016 to September 2017. The study was conducted in nulliparous women coming at term (38-41) weeks in active phase of labour (with cervical dilatation at least 4cm) either spontaneous or induced, both group of labouring women were monitored using modified WHO partograph. Outcomes measures include requirement of augmentation of labour with oxytocin, mean duration of labour, eventual mode of delivery, and the maternofoetal outcome. A total of 160 women were enrolled in this study into two groups. There was no difference in mean age group, but BMI and gestational age were noted significant (p=0.001) More women had spontaneous normal vaginal delivery among those with spontaneous labour (86.25% vs. 78.75%). The mean duration of the second stage of labour was significantly more in induced (17.65 minutes) than in spontaneous labour (14.78 minutes) with a significant P-value (p=0.001). The mean Apgar score between the groups showed almost same. No statistically significant difference was found (p>0.05). This study prevailed that, requirement of oxytocin for augmentation of labour and mean duration of labour was less in spontaneous group and most of the patient delivered vaginally but in induced group rate of caesarean was higher and requirement of oxytocin for labour augmentation was also more than spontaneous group. We observed that induced labour can be a safe procedure among nulliparous women if labour is monitored by modified WHO partograph.