2014, Number 2
Importance of the diagnosis of carriers in families with history of hemophilia
Language: Spanish
References: 10
Page: 108-113
PDF size: 87.59 Kb.
ABSTRACT
Hemophilia is ahereditary bleeding disorderX-linkedthat arises dueto mutationsin the genes offactor VIII(hemophiliaA)andfactor IX(hemophiliaB), which causes a decrease orfunctional deficiencyof these proteins inplasma.Their frequenciesare 1 in5 000malesand1 in30 000live births, respectively. It affectsmales almost exclusively, andfemale carriershave a50 % riskof transmitting thedisease to their children. So, it isimportantin familieswith history of hemophilia that carriers are identifiedthroughgenetic counseling, which provides informationabout the disease, makingpedigree,calculation of therisk of recurrence, molecular diagnosis andpossibility ofprenatal diagnosis inpregnantcarriers.It is imperativethat genetic counselingconstitutesan educationaland informative process,never as an imposition.REFERENCES
Rodríguez-Martorell FJ, Mingot ME, Palomo A, Núñez R, Pérez-Garrido R, Villar A, et al. Recomendaciones sobre portadoras en Hemofilia. Federación Española de Hemofilia. 2009. [acceso: 2 de junio de 2013]. Disponible en: http://www.hemofiliagipuzkoa.org/files/home/488_recomendacionessobre- portadoras-en-hemofilia.pdf
Bustamante Aragones A, Rodríguez de Alba M, González González C, Trujillo Tiebas MJ, Diego Álvarez D, Vallespin E et al. Foetal sex determination in maternal blood from the seventh week of gestation and its role in diagnosing haemophilia in the foetuses of female carriers. Haemophilia 2008 May;14(3):593-8.