Incidence and clinical implications of chorioamniotic membrane separation after fetoscopic surgery in monochorionic twin pregnancies

Objectives: To evaluate the incidence of chorioamniotic membrane separation (CMS) after surgical fetoscopy in monochorionic diamniotic twins and its impact on pregnancy outcome. Methods: 338 patients with monochorionic diamniotic pregnancies complicated with twin-to-twin transfusion syndrome or selective intrauterine growth restriction that underwent surgical fetoscopy (selective laser photocoagulation of communicating vessels (SLPCV) or cord occlusion) at a single tertiary level hospital during a 6-year period were included. Surgical data included cervical length, gestational age (GA), type of surgery, duration…