Document Detail

Umbilical artery velocity waveforms are not valid indices for assessing growth retardation in utero.
MedLine Citation:
PMID:  2566524     Owner:  NLM     Status:  MEDLINE    
Blood flow velocity waveforms from the umbilical artery of 126 normal fetuses with no complications at 20-41 weeks and in 31 growth-retarded fetuses, were recorded using pulsed Doppler ultrasound. A total of 140 examinations were performed on normal fetuses and 49 on growth-retarded fetuses. The resistance index (RI) was used as an index of blood flow resistance. In 30 of the 31 growth-retarded fetuses (96.8%), the values of RI were within the mean +/- 2 S.D. of normal fetuses. Placental/fetal weight ratio (P/F ratio) was assessed. All values of P/F ratio of growth-retarded fetuses were within the mean +/- 2 S.D. of normal values. Small placentas expressed as a normal P/F ratio almost always associated with normal RI values. Therefore, measurement of RI on umbilical artery blood flow velocity waveform by Doppler ultrasound cannot serve as a valid diagnostic index to predict growth retardation of the fetus in utero.
K Hata; S Katoh; D Senoh; S Aoki; O Takamiya; T Hata; M Kitao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics     Volume:  29     ISSN:  0020-7292     ISO Abbreviation:  Int J Gynaecol Obstet     Publication Date:  1989 May 
Date Detail:
Created Date:  1989-07-10     Completed Date:  1989-07-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0210174     Medline TA:  Int J Gynaecol Obstet     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  25-9     Citation Subset:  IM    
Department of Obstetrics and Gynecology, Shimane Medical University, Izumo, Japan.
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MeSH Terms
Blood Flow Velocity
Fetal Growth Retardation / diagnosis*
Umbilical Arteries / physiology*

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