Document Detail

Arterio-arterial vascular anastomoses in monochorionic placentas with and without twin-twin transfusion syndrome.
MedLine Citation:
PMID:  22652047     Owner:  NLM     Status:  Publisher    
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 twin-twin transfusion syndrome (TTTS) compared to a control group of uncomplicated monochorionic placentas. Placental angioarchitecture was analyzed using colored dye injection. AA anastomoses were detected in 37% (14/38) of TTTS placentas versus 91% (209/228) in control placentas (p < 0.001). The median diameter of AA anastomoses in the group with and without TTTS was 1.9 mm and 2 mm, respectively (p = 0.711). In conclusion, our findings show that AA anastomosis occur less frequently in TTTS placentas, supporting the concept of the protective role of AA anastomoses in TTTS. However, the size of the AA anastomosis, when present, does not appear to influence the pathophysiology of the disease.
S F de Villiers; F Slaghekke; J M Middeldorp; F J Walther; D Oepkes; E Lopriore
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-30
Journal Detail:
Title:  Placenta     Volume:  -     ISSN:  1532-3102     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-6-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006349     Medline TA:  Placenta     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, J6-S, PO Box 9600, 2300 RC, Leiden, The Netherlands.
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