Document Detail


Umbilical and uterine artery flow velocity waveforms in normal pregnancy and pregnancy induced hypertension.
MedLine Citation:
PMID:  2119964     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Umbilical and uterine artery Doppler studies were carried out in 113 cases of normal pregnancy and in 32 patients with pregnancy induced hypertension (PIH). The results were analyzed by calculating the systolic/diastolic (S/D) ratio. In normal pregnancy the umbilical velocity wave S/D ratio declined from 3.9 to 2.1 from 20th week to term, and the uterine wave S/D ratio remained constant between 1.8 and 1.9. In many cases of severe PIH the umbilical and uterine artery velocity wave S/D ratios were raised, indicating increased resistance to the blood flow. The changes of umbilical waveforms appeared earlier than those of the uterine arterial waveforms.
Authors:
C S Yang; L Z Zhang; H Schalman; G Farmakides; B Penny; D Winter
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Chinese medical journal     Volume:  103     ISSN:  0366-6999     ISO Abbreviation:  Chin. Med. J.     Publication Date:  1990 Jun 
Date Detail:
Created Date:  1990-11-21     Completed Date:  1990-11-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7513795     Medline TA:  Chin Med J (Engl)     Country:  CHINA    
Other Details:
Languages:  eng     Pagination:  503-7     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, Third Hospital, Beijing.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Flow Velocity
Female
Humans
Pre-Eclampsia / physiopathology*
Pregnancy / physiology*
Ultrasonography
Umbilical Arteries / physiology*
Uterus / blood supply*

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