Iatrogenic bladder injuries during caesarean delivery: a case control study.

This study determined the rate, risk factors, management and outcome of bladder injury during caesarean section and suggests ways to improve the quality of care and reduce maternal morbidity and mortality. During the study period, there were 76 bladder injuries in 56,799 caesarean deliveries for an overall incidence of 0.13%. Women with a bladder injury were more likely to have had a prior caesarean delivery, as compared with the control group (72.4% vs 34.2%; p < 0.001). Cases were also more likely than controls to have had prior pelvic surgery. The presence of adhesions during the procedure was greater in the bladder injury group than the controls. In conclusion, our study suggests that a previous caesarean delivery is the most common risk factor for bladder injury during caesarean delivery. Moreover, the presence of labour, station of the presenting fetal part deeper than or equal to +1, and a large baby were independent risks for a bladder injury during caesarean delivery. Women requesting primary caesarean deliveries should be counselled about the potential for significant surgical complications in repeat caesarean deliveries when discussing the indications for a primary elective caesarean delivery.