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Prenatal diagnosis in combined antithrombin and factor V gene mutation

Lane, DA; Auberger, K; Ireland, H; Roscher, AA; Thein, SL; (1996) Prenatal diagnosis in combined antithrombin and factor V gene mutation. BRIT J HAEMATOL , 94 (4) 753 - 755.

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We report prenatal diagnosis in a family with combined antithrombin deficiency (type II heparin binding site) and factor V 506 Arg to Gin mutation. Both clinically unaffected parents are heterozygous for the antithrombin mutation, which results in a 99 Leu to Phe substitution, and the father is also heterozygous for the factor V gene defect. There is one daughter, homozygous for the antithrombin and heterozygous for the factor V mutations, who suffered a right-sided hemiparesis at the age of 4 months due to occlusion of the left middle cerebral artery and a large left sided infarct followed by further thromboembolic events. The family requested prenatal diagnosis and chorionic villi was sampled at 12 weeks gestation, The fetus was shown to be heterozygous for the antithrombin and factor V gene mutations, the same genotype as the unaffected father. No further intervention was considered necessary. To our knowledge this is the first report of prenatal diagnosis in antithrombin deficiency.

Type: Article
Title: Prenatal diagnosis in combined antithrombin and factor V gene mutation
Keywords: antithrombin deficiency, factor V gene mutation, prenatal diagnosis, ACTIVATED PROTEIN-C, PURPURA FULMINANS, S DEFICIENCY, RISK FACTOR, RESISTANCE, THROMBOSIS
UCL classification: UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science
URI: http://discovery.ucl.ac.uk/id/eprint/107094
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