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OBJECTIVE: To compare the mean induction to delivery interval of trans-cervical foley’s catheter with or without extra-amniotic saline infusion for induction of labour at term.
METHODOLOGY: This randomized controlled study was conducted in Labour room, Arif Memorial Teaching Hospital Lahore for 6 months. 100 patients with cephalic presentation, singleton pregnancy, intact membranes having Bishop’s score <6 at gestational age 37-41 weeks were selected. The patients were divided into two groups of 50 each using random number table. The patients induced with foley’s catheter alone were labeled as group A while those given extra amniotic saline through foley’s catheter were labeled as group B. Patients were augmented with oxytocin in active phase of labour and induction to delivery interval was recorded.
RESULTS: The mean age of patients in group-A was 26 years and that in group-B was 26.1 years with standard deviation of 6.3 and 5.5, respectively. The calculated p value was 0.863 which is not significant, so the age factor is similar in both groups. Both groups were also similar on the basis of parity, gestational age and pre-induction Bishop’s score as the recorded p value for these was >0.05 so statistically insignificant. Comparison of mean time interval from induction to delivery shows 20.53±6.21 hours in group-A while 15.98±5.43 hours in group-B with p value <0.05 while there was no significant difference in mode of delivery in both groups.
CONCLUSION: Our conclusion is that induction of labour by using foley’s catheter with extra amniotic saline infusion results in shorter induction to delivery interval than foley’s catheter alone, so it is suitable, cost effective, and safe method for induction of labour.