The patient fulfills the criteria for laser photocoagulation of placental anastomoses based on the standard of care
fetal diagnosis of twin-to-twin transfusion syndrome
Anterior placenta
The patient provides signed informed consent that details the maternal and fetal risks involved with the procedure
You may not be if
Contraindication to abdominal surgery, fetoscopic surgery, or general anesthesia
Allergy or previous adverse reaction to a study medication specified in this protocol
The patient does not fulfill the conventional criteria to undergo in-utero surgery, which is specific for each surgery
Preterm labor, preeclampsia, or a uterine anomaly (e.g., large fibroid tumor) that is unavoidable during surgery in the index pregnancy
Fetal aneuploidy, genomic variants of known significance if an amniocentesis has been performed, other major fetal anomalies or disorders that may impact the fetal/neonatal survival, or a known syndromic mutation
Suspicion of a major recognized syndrome by ultrasound or MRI
