Document Detail

Comparison of red blood cell hematology among normal, alpha-thalassemia-1 trait, and hemoglobin Bart's fetuses at mid-pregnancy.
MedLine Citation:
PMID:  18932192     Owner:  NLM     Status:  MEDLINE    
The objective of this study was to compare red blood cell indices among normal, alpha-thalassemia-1 trait, and hemoglobin (Hb) Bart's fetuses at mid-pregnancy. A total of 87 pregnancies (88 fetuses) at risk of homozygous alpha-thalassemia-1, who underwent cordocentesis including the measurement of Hb level and red blood cell indices of fetuses at 18-22 weeks of gestation at Maharaj Nakorn Chiang Mai Hospital, were recruited into this study. The final outcome was based on the fetal DNA analysis using PCR technique for SEA type alpha-thalassemia-1. Fetuses were divided into three groups: normal, alpha-thalassemia-1 trait, and homozygous alpha-thalassemia-1 (Hb Bart's disease). The mean gestational age of the 87 pregnant women recruited into the study was 18.7 +/- 0.8 weeks. According to the DNA analysis, the incidence of Hb Bart's disease, alpha-thalassemia-1 trait, and normal fetuses were 29.5%, 45.5%, and 25%, respectively. The mean Hb level, mean corpuscular volume, mean corpuscular Hb, and mean cell Hb concentration were significantly different in all three groups of fetuses. Moreover, these differences were also found among fetuses with the alpha-thalassemia-1 trait and those that were normal. Ninety-two percent of fetuses with Hb Bart's disease had some degree of anemia at mid-pregnancy. However, two Hb Bart's fetuses did not have anemia. Furthermore, two fetuses in the alpha-thalassemia-1 trait group were mildly anemic, but most (95%) were not. There is a highly significant difference in red blood cell indices among normal, alpha-thalassemia-1 trait, and Hb Bart's fetuses, and most fetuses with Hb Bart's disease have some degree of anemia from mid-pregnancy.
Kasemsri Srisupundit; Wirawit Piyamongkol; Theera Tongsong
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of hematology     Volume:  83     ISSN:  1096-8652     ISO Abbreviation:  Am. J. Hematol.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-27     Completed Date:  2009-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7610369     Medline TA:  Am J Hematol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  908-10     Citation Subset:  IM    
Copyright Information:
Copyright 2008 Wiley-Liss, Inc.
Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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MeSH Terms
Case-Control Studies
Cohort Studies
Erythrocyte Indices*
Fetal Diseases / blood*,  genetics
Hemoglobins, Abnormal*
Polymerase Chain Reaction
Pregnancy Trimester, Second
Prenatal Diagnosis
alpha-Thalassemia / blood*,  genetics
Reg. No./Substance:
0/Hemoglobins, Abnormal; 9056-09-1/hemoglobin Bart's

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