Twin to Twin Transfusion Syndrome (TTTS) | 合法醫療器材資訊網

TwintoTwinTransfusionSyndrome(TTTS)isaprenatalconditioninwhichtwinsshareunequalamountsoftheplacenta'sbloodsupplyresultinginthetwo ...

Twin to Twin Transfusion Syndrome (TTTS) is a prenatal condition in which twins share unequal amounts of the placenta’s blood supply resulting in the two fetuses growing at different rates. 70% of identical twins share a placenta, and 15-20% of these pregnancies are affected by TTTS. TTTS is not related to anything the mother did or did not do during pregnancy.

Identical twins share one placenta. Most commonly, they are in different sacs of fluid, the amniotic sacs. This type of twin pregnancy is called monochorionic (one placenta) and diamniotic (two sacs). In monochorionic, diamniotic twins (mo-di twins), there are shared blood vessels, which run from one twin to the other on the surface of the placenta. Most often the net flow of blood between the twins is fairly even, but when there is an imbalance of blood flow across these blood vessels, such that one twin is getting more blood supply than the oth...