Document Detail


Association of maternal serum alpha-fetoprotein with persistent placenta previa.
MedLine Citation:
PMID:  15370075     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the relationship between maternal serum alpha-fetoprotein (MSAFP) and the risk of persistent placenta previa. METHODS: We conducted a retrospective cohort study of singleton pregnancies with sonographic evidence of placenta previa at 15-20 weeks' gestation, between October 1991 and August 2000. Only pregnancies with MSAFP determination at 15-20 weeks' gestation and non-anomalous live-born infants > or =24 weeks' gestation were included. Pregnancies in which Cesarean delivery was performed for placenta previa were considered persistent; this was the primary outcome. RESULTS: Of 275 women with previa at 15-20 weeks' gestation, 33 (12%) had previa at delivery. Trend analysis revealed a greater likelihood of persistent previa with increasing MSAFP values (p=0.01). Mid-trimester MSAFP <1 multiple of the median (MoM) was associated with a decreased incidence of persistence of 4%, significantly less than the risk at > or =1 MoM (16%; p=0.01). CONCLUSIONS: There is an association between increasing MSAFP values and greater likelihood of persistent placenta previa. An MSAFP value <1 MoM is associated with a reduction in the risk of persistence of previa to delivery.
Authors:
E L Koster; J S Dashe; D D McIntire; R M Ramus
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians     Volume:  16     ISSN:  1476-7058     ISO Abbreviation:  J. Matern. Fetal. Neonatal. Med.     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-09-16     Completed Date:  2005-03-01     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3-7     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center at Dallas, TX 75390-9032, USA.
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MeSH Terms
Descriptor/Qualifier:
Epidemiologic Methods
Female
Humans
Placenta Previa / blood*,  ultrasonography
Pregnancy
Pregnancy Outcome
alpha-Fetoproteins / analysis*
Chemical
Reg. No./Substance:
0/alpha-Fetoproteins

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