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  • Title: Successful management of twin anemia/polycythemia sequence by syngeneic partial exchange transfusion.
    Author: Yarci E, Alyamac Dizdar E, Oncel MY, Kose Cetinkaya A, Derme T, Canpolat FE, Oguz SS, Dilmen U.
    Journal: Fetal Diagn Ther; 2014; 36(3):251-4. PubMed ID: 25095971.
    Abstract:
    Twin anemia/polycythemia sequence (TAPS) is characterized by large intertwin hemoglobin (Hb) differences without signs of twin oligopolyhydramnios. The spontaneous form complicates approximately 3-5% of monochorionic twin pregnancies. TAPS placentas are characterized by the presence of only very few and small unidirectional arteriovenous anastomoses, which allow a slow transfusion of blood from the donor to the recipient, gradually leading to highly discordant Hb levels. Neonatal morbidity in TAPS appears to be mainly limited to hematological problems at birth. Donor twins may be severely anemic and require blood transfusions, whereas recipient twins may be severely polycythemic and require partial exchange transfusion (PET). We herein report monochorionic twins with TAPS: the anemic twin was transfused with the blood concomitantly obtained from the polycythemic co-twin during PET. To our knowledge this is the first therapeutic approach using a recipient twin's whole blood as a donor source instead of a foreign blood donor. In this case, we have approached this recently (un)known form of chronic fetofetal transfusion from a different aspect. In our opinion, this will lead to new postnatal therapeutic approaches for optimal TAPS management.
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