Pregnancy outcomes associated with chorioamnion membrane separation severity following fetoscopic laser surgery for twin‐twin transfusion syndrome

Objective We tested the hypothesis that increasing severity of chorioamnion membrane separation (CAS) after fetoscopic laser surgery (FLS) for twin‐twin transfusion syndrome (TTTS) is associated with worse pregnancy outcomes. Methods Prospective cohort of patients undergoing FLS for TTTS between 2011 and 2018. CAS was defined as separation of fetal membranes from the uterine wall on post‐operative ultrasound. Patient groups were defined: Group...