| Arterio-arterial vascular anastomoses in monochorionic twin placentas with and without twin anemia-polycythemia sequence. | |
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MedLine Citation:
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PMID: 22257747 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We performed a matched case-control study to analyze the placental angioarchitecture, in particular the diameter of arterio-arterial (AA) anastomoses in monochorionic placentas from pregnancies with spontaneous twin anemia-polycythemia sequence (TAPS) compared to a control group of uncomplicated monochorionic placentas. Placental angioarchitecture was analyzed using colored dye injection. AA anastomoses were detected in 20% (3/15) of spontaneous TAPS placentas. The median diameter of AA anastomoses in the group with and without TAPS was 0.4 mm and 2.2 mm, respectively (p = 0.01). In conclusion, AA anastomoses are rarely detected in TAPS placentas. When present, the AA anastomosis is very small, preventing equilibration of hemoglobin levels between both twins. |
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Authors:
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S de Villiers; F Slaghekke; J M Middeldorp; F J Klumper; F J Walther; D Oepkes; E Lopriore |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-16 |
Journal Detail:
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Title: Placenta Volume: - ISSN: 1532-3102 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8006349 Medline TA: Placenta Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
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Division of Neonatology, Department of Pediatrics, J6-S, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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