Endoscopic laser surgery after therapeutic amniocentesis in the treatment of severe twin : twin transfusion syndrome

The twin—twin transfusion syndrome (TTTS) is a congenital pathology affecting 15% of monochorionic twin pregnancies [1]. The treatment modes most frequently applied at present include serial amnioreduction [2] and selective endoscopic laser coagulation of anastomoses (ELCA) [3]. The only prospective, randomized, controlled study that has been performed to compare the effectiveness of these two treatment techniques for TTTS is the