Retrospective study to find predictive factors of scar dehiscence in previous caesarean section to prevent maternal and perinatal morbidity and mortality

Background: Uterine scar dehiscence is a complication in which scar tissue remaining from previous C-section is disrupted and separated. Its incidence ranges between 0.2%-4.3% of all pregnancies with previous caesarean. It is asymptomatic in 48% of patients and thus is a serious complication because if not predicted it can lead to uterine rupture.Methods: Patients included in the study were of previous caesarean who were taken for repeat caesarean and scar dehiscence was not predicted preoperatively but seen intra-operatively. History, symptoms, signs and radiological investigations were interpreted to find out single or multiple factors responsible for scar dehiscence.Results: Incidence of scar dehiscence was found to be 8.3% .Scar dehiscence was detected in 55% of cases who were gravida 3 and above, all patients with intraoperative scar tenderness, 35% of patients with scar thickness ˂2mm, 70% cases with POG 37-40 weeks, 65% of patients with interpregnancy interval˂18 months,86.6% of patients with scar dehiscence had baby birth weight ˃3kg.Conclusions: Authors concluded that a single factor which has maximum predictive value for scar dehiscence is scar tenderness.