期刊
PRENATAL DIAGNOSIS
卷 30, 期 6, 页码 540-546出版社
WILEY
DOI: 10.1002/pd.2514
关键词
thalassemia; prevention and control; prenatal diagnosis
资金
- Khon Kaen University
- Office of the Higher Education Commission [CHE-RG-51]
- Ministry of Education, Thailand
- Office of the Higher Education Commission
Objective To demonstrate the performance of thalassemia prevention in northeast Thailand during 1993-2008. Methods Retrospective data from 1422 at-risk couples who attended from January 1993 to December 2008 were studied. All couples were suspected at-risk couples based on initial screening using standard protocols. Three thalassemia carrier types including alpha(0)-thalassemia, beta-thalassemia and hemoglobin E were identified using standard methods. Data on prenatal diagnosis were collected. Results Of the 1422 positive-screened couples, 1254 (88.2%) were diagnosed as true-positive couples. After DNA analysis, 968 of 1254 (77.2%) resulted at risk for three types of severe conditions being hemoglobin Em-beta-thalassemia disease (640/968, 66.1%), homozygous alpha(0)-thalassemia (304/968, 31.4%) and homozygous beta-thalassemia (11/968, 1.1%). The remaining 1.3% of the couples were at risk for more than one disease. After genetic counseling, prenatal diagnosis was performed on 756 couples (78.1%). The proportions of affected fetuses, thalassemia carriers and unaffected fetuses were 26.9, 50.0 and 23.0%, respectively. Conclusion Implementation of a prevention and control program accompanying with a referral system for prenatal diagnosis is technically feasible in northeast Thailand and a large number of severe thalassemia diseases have been prevented during the past 16 years of operation. Copyright (C) 2010 John Wiley & Sons, Ltd.
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