Document Detail

Intrathoracic fluid may be a normal finding at around 8 gestational weeks.
MedLine Citation:
PMID:  17582229     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To describe the observation of embryonic thoracic fluid at around 8 weeks' gestation and to discuss the likely etiology. METHODS: This was a retrospective study of patients referred between August 2005 and May 2006 to our units in France and in the USA for a dating scan between 6 and 10 weeks. Included in our series were all embryos presenting with an ultrasound finding suggestive of an early pericardial fluid collection, i.e. a large anechoic fluid collection surrounding the heart. The gestational age, fetal heart rate and maternal age at this first scan were recorded, along with nuchal translucency thickness as measured at the 12-week scan and the second-trimester anomaly scan results. RESULTS: Five cases were included in this study. In all five patients, the anechoic fluid collection was visualized at 8 weeks, and by the time of the nuchal scan it had disappeared completely. The nuchal translucency thickness was normal in all cases and all five embryos had normal cardiac examinations during the second trimester and were normal at birth. CONCLUSIONS: The observation on ultrasound at 8 weeks' gestation of a large anechoic fluid collection surrounding the heart that disappears by week 12 is suggestive of a transient pericardial collection.
B Benoit; M M Murta; J Leite; P Jeanty
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  30     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-07-31     Completed Date:  2008-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  188-91     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2007 ISUOG. Published by John Wiley & Sons, Ltd.
Obstetrics and Gynecology, Princess Grace Hospital, Monaco, France.
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MeSH Terms
Pericardial Effusion / ultrasonography*
Pericardium / embryology*,  ultrasonography*
Pregnancy Trimester, First
Retrospective Studies
Ultrasonography, Prenatal / methods*

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