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Chapters
- 00:05Title
- 01:33Preparation of the Placenta at Delivery
- 02:13Catheterization of the Umbilical Vessels
- 04:08Injection with Colored Dye
- 05:16Evaluation and Documentation of the Placenta after Colored Dye Injection
- 05:41Characterizing Findings of Various Angioarchitectures from Monochorionic Twin Placentas
- 09:06Conclusion
Twin-to-twin transfusion syndrome and twin anemia polycythemia sequence are two potentially devastating problems in perinatal medicine. Both disorders occur only in monochorionic twins and result from unbalanced blood flow through placental vascular anastomoses. We provide a simple protocol to accurately evaluate the presence of vascular anastomoses using colored dye injection of placental vessels after birth.
Tags
Vascular AnastomosesPlacentaTwin-to-twin Transfusion Syndrome (TTTS)Twin Anemia Polycythemia Sequence (TAPS)Injection StudiesMonochorionic TwinsDichorionic TwinsArtery To Artery AnastomosesVein To Vein AnastomosesArtery To Vein AnastomosesArterio-venous (AV) AnastomosesArterio-arterial (AA) AnastomosesVeno-venous (VV) AnastomosesDeep AnastomosesSuperficial AnastomosesBlood Flow ImbalanceDonor TwinRecipient TwinBlood Volumes Imbalance
