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South African Journal of Child Health

On-line version ISSN 1999-7671
Print version ISSN 1994-3032

Abstract

FEBEN, C et al. Fanconi anaemia in South African patients with Afrikaner ancestry. S. Afr. j. child health [online]. 2017, vol.11, n.3, pp.141-145. ISSN 1999-7671.  http://dx.doi.org/10.7196/sajch.2017.v11i2.1312.

BACKGROUND. Fanconi anaemia (FA) is a rare genetic disorder of impaired DNA repair that results in physical and haematological consequences in affected individuals. In South Africa (SA), individuals with Afrikaner ancestry are at an increased risk of inheriting disease-causing FA mutations, owing to the three common FANCA (FA, complementation group A) founder mutations present in this population subgroup. OBJECTIVES. To describe the physical phenotype of SA patients with FANCA mutations for the purpose of recommending appropriate care for affected individuals. METHODS. A structured clinical examination and file-based review were used to evaluate the physical phenotype of 7 patients with compound heterozygous and homozygous FANCA founder mutations, and 1 patient with confirmed FANCA complementation analysis. Descriptive statistical analysis was used to determine the frequency of physical anomalies in Afrikaner patients and to compare the described phenotype to other FA cohorts, including a previously clinically characterised black SA FA cohort. RESULTS. An earlier age of diagnosis of FA in Afrikaner patients, a high frequency of somatic anomalies and a higher-than-expected incidence of the VACTERL/H phenotype were noted. CONCLUSIONS. Based on our findings, recommendations for the care of FA patients with Afrikaner ancestry are made, including renal ultrasound evaluation at diagnosis and hearing screening.

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