Document Detail

Uterine artery Doppler velocimetry in relation to trophoblast migration into the myometrium of the placental bed.
MedLine Citation:
PMID:  7724109     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To test the hypothesis that an abnormally high resistance in the uterine artery indicates impaired trophoblast migration into the myometrium of the placental bed. METHODS: Doppler velocimetry in the uterine artery was carried out in 43 pregnant women within 7 days before cesarean delivery and placental bed biopsy. A pathologist evaluated the placental bed biopsies histologically. Trophoblast migration was absent in 28 cases (impaired migration group) and present in 15 (migration group). Clinical characteristics were compared between these two groups. RESULTS: There was no significant difference in the mean gestational ages at delivery in the two groups, but those with impaired migration included a higher incidence of small for gestational age infants (46.4 versus 6.7%, P < .01) and a lower mean (+/- standard deviation) birth weight (1622 +/- 528 versus 2287 +/- 748 g, P < .01). The systolic-diastolic ratio (S/D) in the uterine artery was higher in the impaired migration group (2.45 +/- 0.81 versus 1.92 +/- 0.34, P < .05). The absence of migration could be deduced from the S/D of the uterine artery, with a predictive value of 92.3% when we set the cutoff value of the ratio at 2.5. CONCLUSION: The results suggest that abnormal uterine artery flow velocity waveforms may indicate impaired trophoblast migration into the myometrium of the placental bed.
S Lin; I Shimizu; N Suehara; M Nakayama; T Aono
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Obstetrics and gynecology     Volume:  85     ISSN:  0029-7844     ISO Abbreviation:  Obstet Gynecol     Publication Date:  1995 May 
Date Detail:
Created Date:  1995-05-22     Completed Date:  1995-05-22     Revised Date:  2009-10-26    
Medline Journal Info:
Nlm Unique ID:  0401101     Medline TA:  Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  760-5     Citation Subset:  AIM; IM    
Department of Obstetrics and Pathology, Osaka Medical Center, Japan.
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MeSH Terms
Arteries / physiology
Birth Weight
Blood Flow Velocity
Cesarean Section
Embryo Implantation / physiology*
Infant, Newborn
Infant, Small for Gestational Age
Laser-Doppler Flowmetry / instrumentation
Placenta / blood supply
Trophoblasts / physiology*
Uterus / blood supply*

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

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