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Ductus venosus Doppler velocimetry in normal pregnancies from 11 to 13 + 6 weeks' gestation-A Taiwanese study.
MedLine Citation:
PMID:  22541146     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: To investigate flow in the ductus venosus at 11-13 + 6 weeks of gestation in women with normal pregnancies in the Taiwanese population.
METHODS: Two hundred and fifty-two normal singleton pregnancies with gestational ages ranging from 11 to 13 + 6 weeks were examined in this study. The pulsatility index for veins (PIV), resistance index (RI), peak velocity during ventricular systole (S-wave), and peak velocity during ventricular diastole (D-wave) were recorded from the ductus venosus.
RESULTS: We analyzed 252 participants who all fulfilled the inclusion and exclusion criteria of our study. The mean maternal age was 31 (range 19-45 years), with a corresponding gestational age of 12 + 4 weeks (range 11-13 + 6). No significant change was found in the vascular indices as gestational age increased for the S-wave (S-wave = 1.4214 (GA) + 17.448, r = 0.09, P = 0.154), PIV (PIV = -0.0358 (GA) + 1.4143, r = -0.05, P = 0.378) and RI (RI = -0.035 (GA) + 1.1478, r = -0.064, P = 0.468). In contrast, the D-wave behaved differently from the other variables. There was a significant increase (r = 0.155, P = 0.013) in the D-wave with gestational age (D-wave = 1.4896 (GA) - 7.1547).
CONCLUSION: D-wave velocity in the ductus venosus increased with gestational age. S-wave peak velocity showed an increasing trend and PIV showed a decreasing trend with gestational age, but they did not reach statistical significance.
Authors:
Chien-Chih Tseng; Hsing-I Wang; Peng-Hui Wang; Ming-Jie Yang; Chi-Mou Juang; Huann-Cheng Horng; Yi-Cheng Wu; Chia-Chien Chen; Huei-Ling Shiu; Mei-Mei Chiang; Huei-Jie Lin; Chih-Yao Chen; Kuan-Chong Chao
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Publication Detail:
Type:  Journal Article     Date:  2012-03-31
Journal Detail:
Title:  Journal of the Chinese Medical Association : JCMA     Volume:  75     ISSN:  1728-7731     ISO Abbreviation:  J Chin Med Assoc     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-04-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101174817     Medline TA:  J Chin Med Assoc     Country:  China (Republic : 1949- )    
Other Details:
Languages:  eng     Pagination:  171-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
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