Document Detail


Fetal hemodynamic changes after amniotomy.
MedLine Citation:
PMID:  15683378     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The aim of the study was to assess fetal vascular blood flow after amniotomy. METHODS: This was a prospective observational study. Thirty-five women with singleton pregnancy beyond 36 weeks of gestation, who underwent amniotomy, were recruited. The pulsatility indices of the fetal middle cerebral artery (MCA), the renal artery, and the ductus venosum were measured before and 30 min following amniotomy. The changes in pulsatility index were compared by means of Wilcoxon signed rank test. RESULTS: There was a significant reduction in pulsatility indices of the MCA (median reduction: 0.23; interquantile range (IQR): -0.04, 0.4) and the renal artery (median reduction: 0.12; IQR: -0.12, 0.54) after amniotomy. However, there was no obvious change in the ductus venosum (median reduction: 0.00; IQR: -0.06, 0.1). CONCLUSIONS: Amniotomy is associated with significant reduction in the impedance of the fetal MCA and the renal artery. The former may be a result of fetal stress response and the latter could be related to the release of vasoactive substances after amniotomy.
Authors:
Wing Yee Fok; Tak Yeung Leung; Michelle Hy Tsui; Tse Ngong Leung; Tze Kin Lau
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Acta obstetricia et gynecologica Scandinavica     Volume:  84     ISSN:  0001-6349     ISO Abbreviation:  Acta Obstet Gynecol Scand     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-02-01     Completed Date:  2005-03-18     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370343     Medline TA:  Acta Obstet Gynecol Scand     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  166-9     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong. angelfok@cuhk.edu.hk
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MeSH Terms
Descriptor/Qualifier:
Adult
Amnion / surgery*
Blood Flow Velocity
Cohort Studies
Female
Fetal Monitoring
Fetus / blood supply*
Follow-Up Studies
Heart Rate, Fetal / physiology*
Hemodynamics / physiology*
Humans
Labor, Induced / methods
Pregnancy
Pregnancy Trimester, Third
Prenatal Care / methods
Prospective Studies
Ultrasonography, Doppler
Ultrasonography, Prenatal*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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