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Second trimester maternal serum markers and a predictive model for predicting fetal hemoglobin Bart's disease.
MedLine Citation:
PMID:  22989193     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Objective: To compare the levels of maternal serum alpha-fetoprotein (AFP), unconjugated estriol (uE3) and free beta-human chorionic gonadotropin (free β-hCG) between pregnancies with fetal Hb Bart's disease and unaffected pregnancies. Methods: 148 pregnancies at risk of fetal Hb Bart's disease scheduled for cordocentesis at 18 to 22 weeks were prospectively recruited into the study. AFP, uE3 and free β-hCG concentrations were measured before cordocentesis and the final fetal diagnosis of Hb Bart's disease was based on fetal Hb typing using high-performance liquid chromatography. Results: AFP and free β-hCG were significantly higher whereas uE3 was lower in women with fetal Hb Bart's disease than those with unaffected fetuses (1.94 MoM, 1.38 MoM and 0.81 MoM respectively). Hb Bart's predictive model; probability = 1/1+e(-[2.876 + 1.333(AFP)- 6.310(uE3)]), effectively predicted fetal Hb Bart's disease (AUC ROC 0.91, 95% CI 0.84-0.97) with 61.5% sensitivity and 98.1% specificity using a cut-off probability at greater than 0.5. Conclusions: In triple test, serum AFP and hCG levels are significantly higher while serum uE3 is significantly lower in pregnancies with fetal Hb Bart's disease. Hb Bart's predictive model included AFP and uE3 is relatively effective and may be helpful in Hb Bart's prenatal screening.
Authors:
Fuanglada Tongprasert; Kasemsri Srisupundit; Suchaya Luewan; Theera Tongsong
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-18
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:  -     ISSN:  1476-4954     ISO Abbreviation:  J. Matern. Fetal. Neonatal. Med.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Maternal Fetal Medicine Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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