Outcomes and complications of the surgical treatment of twin–twin transfusion syndrome Walter J Morales

Twin-twin transfusion syndrome (TTTS) occurs in approximately 10-15% of monochorionic twin pregnancies. If untreated, this condition will almost always result in perinatal mortality or long-term neurological handicap of surviving infants.1,2 Various procedures have been proposed in the treatment of this syndrome, including selective feticide,3 serial decompressing amniocentesis,4 and intentional septostomy.5

These procedures have met with limited success, particularly in those cases presenting with early diagnosis (20 weeks), abnormal Doppler studies (stage III), or fetal hydrops (stage IV).