Document Detail

Obstetric implications of low-lying placentas diagnosed in the second trimester.
MedLine Citation:
PMID:  14511867     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To determine the obstetrical outcome of pregnancies initially complicated by a low-lying placenta in the second trimester. METHODS: We reviewed the obstetric outcome of all women with singleton deliveries from 1 January 1997 to 31 March 1999 and compared the 703 women with low-lying placentas (placentas in the lower uterine segment) with the 6938 women with placentas that were normally situated in the upper uterine segment at 16-22 weeks' gestation. RESULTS: Pregnancies complicated by a low-lying placenta in the second trimester were not associated with antepartum hemorrhage, preterm births, preterm prelabor rupture of membranes, pregnancy-induced hypertension, fetal growth restriction or cesarean births. However, they had a higher incidence of postpartum hemorrhage (odds ratio 1.768, 95% confidence interval 1.137, 2.748) than women with a normally situated placenta in the second trimester. CONCLUSIONS: Pregnant women with low-lying placentas in the second trimester have a higher incidence of postpartum hemorrhage and hence, it would be prudent to carefully manage the third stage of labor in these women.
O Ogueh; L Morin; R H Usher; A Benjamin
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics     Volume:  83     ISSN:  0020-7292     ISO Abbreviation:  Int J Gynaecol Obstet     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-09-26     Completed Date:  2004-04-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0210174     Medline TA:  Int J Gynaecol Obstet     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  11-7     Citation Subset:  IM    
Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal, Canada.
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MeSH Terms
Age Factors
Canada / epidemiology
Maternal Age
Placenta Previa / complications,  epidemiology*,  ultrasonography*
Postpartum Hemorrhage / epidemiology,  etiology
Pregnancy Outcome
Pregnancy Trimester, Second
Prospective Studies
Ultrasonography, Prenatal

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