Trial of labour after previous caesarean section: the predictive factors affecting outcome.

A prospective observational study was conducted at Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, India on 300 pregnant women with one previous caesarean section fulfilling the eligibility criteria for trial of labour, to study the predictive factors and the outcome of trial of labour. The data obtained were analysed according to mode and outcome of labour and was then subjected to statistical analysis. The success rate of trial of labour was found to be 53.6%. Favourable Bishop's score (p = 0.000), spontaneous onset of labour (p = 0.005) and history of previous delivery after caesarean (p = 0.007) were significantly associated with a successful outcome of trial of labour. Higher chances of vaginal delivery were found with breech as an indication of previous caesarean section, i.e. 67.1% as compared to 39% with non-progress of labour as an indication.