Membrane Separation and Perinatal Outcomes after Laser Treatment for Twin-Twin Transfusion Syndrome.

INTRODUCTION: Postoperative membrane separation is a complication of selective laser photocoagulation of communicating vessels (SLPCV) for the treatment of twin-twin transfusion syndrome (TTTS). OBJECTIVE: The aim of this work was to determine whether a quantitative grading system of membrane separation following SLPCV was associated with preterm premature rupture of membranes (PPROM) and preterm delivery (PTD). METHODS: Patients with membrane separation after SLPCV on postoperative day 1 were stratified into greatest width of separation /=1 cm (Group B) and compared to patients without separation by the following outcomes: PPROM /=1 cm had a higher risk of PTD <32 weeks.