Twin Anemia-Polycythemia Sequence: Diagnostic Criteria, Classification, Perinatal Management and Outcome
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چکیده
Monochorionic twins share a single placenta with intertwin vascular anastomoses, allowing the transfer of blood from one fetus to the other and vice versa. These anastomoses are the essential anatomical substrate for the development of several complications, including twin-twin transfusion syndrome (TTTS) and twin anemia-polycythemia sequence (TAPS). TTTS and TAPS are both chronic forms of fetofetal transfusion. TTTS is characterized by the twin oligopolyhydramnios sequence, whereas TAPS is characterized by large intertwin hemoglobin differences in the absence of amniotic fluid discordances. TAPS may occur spontaneously in up to 5% of monochorionic twins and may also develop after incomplete laser treatment in TTTS cases. This review focuses on the pathogenesis, incidence, diagnostic criteria, management options and outcome in TAPS. In addition, we propose a classification system for antenatal and postnatal TAPS. Copyright © 2010 S. Karger AG, Basel Received: February 1, 2010 Accepted: February 2, 2010 Published online: March 26, 2010 E. Lopriore, MD, PhD Division of Neonatology, Department of Pediatrics Leiden University Medical Center PO Box 9600, 2300 RC Leiden (The Netherlands) Tel. +31 71 526 9111, Fax +31 71 526 6787, E-Mail e.lopriore @ lumc.nl © 2010 S. Karger AG, Basel 1015–3837/10/0274–0181$26.00/0 Accessible online at: www.karger.com/fdt D ow nl oa de d by : 54 .7 0. 40 .1 1 11 /2 2/ 20 17 1 0: 42 :4 9 A M
منابع مشابه
Twin anemia-polycythemia sequence: diagnostic criteria, classification, perinatal management and outcome.
Monochorionic twins share a single placenta with intertwin vascular anastomoses, allowing the transfer of blood from one fetus to the other and vice versa. These anastomoses are the essential anatomical substrate for the development of several complications, including twin-twin transfusion syndrome (TTTS) and twin anemia-polycythemia sequence (TAPS). TTTS and TAPS are both chronic forms of feto...
متن کاملTwin Anemia-Polycythemia Sequence: Diagnostic Criteria, Classification, Perinatal Management and Outcome
Monochorionic twins share a single placenta with intertwin vascular anastomoses, allowing the transfer of blood from one fetus to the other and vice versa. These anastomoses are the essential anatomical substrate for the development of several complications, including twin-twin transfusion syndrome (TTTS) and twin anemia-polycythemia sequence (TAPS). TTTS and TAPS are both chronic forms of feto...
متن کاملTwin Anemia-Polycythemia Sequence: Diagnostic Criteria, Classification, Perinatal Management and Outcome
Monochorionic twins share a single placenta with intertwin vascular anastomoses, allowing the transfer of blood from one fetus to the other and vice versa. These anastomoses are the essential anatomical substrate for the development of several complications, including twin-twin transfusion syndrome (TTTS) and twin anemia-polycythemia sequence (TAPS). TTTS and TAPS are both chronic forms of feto...
متن کاملTwin Anemia-Polycythemia Sequence: Diagnostic Criteria, Classification, Perinatal Management and Outcome
Monochorionic twins share a single placenta with intertwin vascular anastomoses, allowing the transfer of blood from one fetus to the other and vice versa. These anastomoses are the essential anatomical substrate for the development of several complications, including twin-twin transfusion syndrome (TTTS) and twin anemia-polycythemia sequence (TAPS). TTTS and TAPS are both chronic forms of feto...
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