• 作者：E. Guinchard^a ; ^{emmanuelle.guinchard@efs.sante.fr" class="auth_mail} ; P. Bricca^a ; S. Monnier^a ; D. Rigal^b
• 关键词：Allo-immunisation ; Phé ; notype RH1 ; Gé ; notypage par mé ; thode non invasive ; Diagnostic pré ; natal ; Validation de mé ; thode ; Accré ; ditation
• 刊名：Transfusion Clinique et Biologique
• 出版年：March, 2014
• 年：2014
• 卷：21
• 期：1
• 页码：1-14
• 全文大小：1295 K

Background

Non-invasive fetal RHD genotyping is an important tool to assess the risk of fetuse's hemolytic disease of anti-D allo-immunized pregnant woman by non-invasive method. A method of genotyping has been developed in the laboratory of Lyon-GHE according to Minon's team (J Gynecol Obstet Biol Reprod 2005): exon 4, 5, and 10 are amplified by real time PCR. At first, genotyping results of 200 pregnant women have been compared with RH1 phenotype at birth. The most important parameters of validation have been tested: the sensibility and the specificity; the negative predictive value; the correlation study permitted to define criteria of biological interpretation. The validation of this method permitted to determine critical points and the limits of the method due to the minor amount of fetal DNA in the maternal plasma and existence of many variant forms of the RHD gene.

Conclusion

We worked too in the perspective to the accreditation for our genetic laboratory.