Document Detail


Fetal left brachiocephalic vein in normal and abnormal conditions.
MedLine Citation:
PMID:  22461379     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objectives: The aim of this study was to establish normal values of fetal left brachiocephalic vein (LBCV) dimensions during normal pregnancy as well as to determine if routine assessment of the LBCV may help to identify fetuses with congenital abnormalities of this vessel. Methods: Fetal LBCV was assessed prospectively during ultrasound examinations in 431 normal singleton pregnancies. Visualization rate of the transverse view of the upper fetal chest at the level of drainage of LBCV into superior vena cava (SVC) by 2D and 2D + Color Doppler was evaluated. Reference ranges of LBCV diameter during non-complicated pregnancy were established. Interobserver and intraobserver variations were analyzed. In addition, a retrospective review of the hospital medical records of 91 pregnancies with fetuses diagnosed with LBCV abnormalities was performed. Results: Sonographic assessment of the fetal LBCV was consistently achieved in the 2(nd) and 3(rd) trimester and on occasions in the 1(st) trimester of pregnancy. In normal fetuses LBCV diameter increased significantly throughout pregnancy, with a mean value of 0.7 mm at 11 weeks and 4.9 mm at term. Dilation of the fetal LBCV was noted in 5 cases of intracranial arteriovenous malformations and 6 cases of supracardiac type of TAPVC. Abnormal course of the LBCV was noted in 12 fetuses. In 63 fetuses with a persistent left SVC and a right SVC the LBCV was absent. Conclusion: This is the first study describing an effective sonographic approach for the assessment of the fetal LBCV dimensions during pregnancy. The normative data may provide an additional means to detect rare anomalies of systemic and pulmonary veins during the pregnancy. Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Authors:
Elena Sinkovskaya; Alfred Abuhamad; Sharon Horton; Rabih Chaoui; Katrin Karl
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-28
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  -     ISSN:  1469-0705     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Division of Maternal-Fetal Medicine of the Department of Obstetrics & Gynecology Eastern Virginia Medical School, Norfolk, Virginia, United States. sinkove@evms.edu.
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