Twin-To-Twin Transfusion Syndrome

The twin-to-twin transfusion syndrome (TTS) results from an unbalanced blood supply through placental anastomoses in monochorionic twins.It induces growth restriction, renal tubular dysgenesis, and oliguria in the donor and visceromegaly and polyuria in the recipient.A better understanding of its pathophysiology could contribute to improving the management of TTS, which still carries a high perinatal mortality in both twins.