title: [Genetic study of congenital afibrinogenemia. Review of 12 cases].
abstract: Twelve cases of congenital afibrinogenemia in 11 families are reported. A family study was performed in six cases. The parents were genetically related in 8 of the 11 families. In half the cases another sibling had the disease. In every case the direct ascendants were unaffected. On the basis of results of plasma fibrinogen assays, "unprotected" heterozygotes with no more than 2.5 g/l fibrinogen and "protected" heterozygotes with normal fibrinogen levels were differentiated. Identification of "unprotected" heterozygotes is essential for genetic counselling. The reason for this variable phenotypic expression of congenital afibrinogenemia is unclear.
authors.affiliation: Service de Pédiatrie, Hôpital d'Enfants, Bab Saadoun, Tunis.
authors.forename: F
authors.initials: F
authors.lastname: Khaldi
authors.forename: N H
authors.initials: NH
authors.lastname: Toumi
authors.forename: F
authors.initials: F
authors.lastname: Bouguerra
authors.forename: A
authors.initials: A
authors.lastname: Boudiche
authors.forename: A
authors.initials: A
authors.lastname: Hafsia
authors.forename: N
authors.initials: N
authors.lastname: Khrouf
authors.forename: B
authors.initials: B
authors.lastname: Bennaceur
mesh_terms: D000347:Afibrinogenemia / Q000097:blood / Q000151:congenital / Q000235:genetics*; D003241:Consanguinity; D005260:Female; D005340:Fibrinogen / Q000737:chemistry; D005808:Genes, Recessive; D006580:Genetic Carrier Screening; D005817:Genetic Counseling; D005820:Genetic Testing; D014644:Genetic Variation; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010375:Pedigree; D010641:Phenotype
chemical_list: D005340:Fibrinogen
vernacular_title: Contribution à l'étude génétique de l'afibrinogénémie congénitale. A propos de douze cas.