P09.31: Intrauterine vesicoamniotic shunt of posterior urethral valve at early second trimester

Neonatal morbidities including acute respiratory distress, chronic lung disease, requirement for ventilatory assistance, patent ductus arteriosus, hypotension, and oliguric renal failure had a lower incidence in the laser group. On brain imaging, ischaemic brain injury was seen in 12% of the pre-laser group and none in the laser group of infants (p = 0.01). Conclusions: These findings indicate that perinatal outcomes are improved with less neonatal morbidity for pregnancies with severe TTTS following introduction of a laser program. It is suggested that laser ablation of communicating placental vessels may be the preferred treatment, consistent with the recent results from a randomised controlled trial.