ISSN - 0973-0958

Pediatric Oncall Journal View Article

Ataxia-Telangiectasia in Cameroonian Children
D Enyama1,2, C A Ngo Kana3, J Mayouego Kouam4, D Noukeu Njinkui1,2, F Kemta Lekpa2,5, P C Mbonda6,7, D C Kedy8, E Mbonda6, S Nguefack3,6.
1Department of Pediatrics, Douala Gynaeco-Obstetric and Pediatric Hospital, Douala, Cameroon,
2Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Cameroon,
3Department of Pediatrics, Yaoundé Gynaeco-Obstetric and Pediatric Hospital, Yaoundé, Cameroon,
4Department of Ophthalmology, Douala Laquintinie Hospital, Douala, Cameroon,
5Department of Internal Medicine, Douala General Hospital, Douala, Cameroon,
6Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Cameroon,
7Department of Internal Medicine, Yaoundé General Hospital, Yaoundé, Cameroon,
8Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Cameroon.
Background: Ataxia-Telangiectasia (A-T) is a rare genetic disease characterized by progressive ataxia and multisystem involvement, which requires early diagnosis and multidisciplinary management.
Methods: We report a series of seven patients with A-T. This is a retrospective study conducted from 2016 to 2020, in patients with a history of progressive cerebellar ataxia and ocular telangiectasia on physical examination as well as elevated serum alpha-fetoprotein. Data were collected from the medical records of the patients.
Results: There were three boys and four girls. The mean age at onset of symptoms was 36.4 months (range 12 to 72 months) and the mean age at diagnosis was 84 months (range 60 to 144 months). Family history of A-T was noted in 3 patients. There was no parental consanguinity in any patient. Ataxia was the first sign of the disease and the reason for consultation in all patients. Cerebellar ataxia and ocular telangiectasia were seen in all patients. Malnutrition was present in 6 (85.7%) patients, dysarthria was observed in 3 (42.8%) patients, intention tremors in 2 (28.6%) patients, dystonia and epilepsy in 1 (14.3%) patient each. Recurrent infections with repeated hospitalizations was present in 1 (14.3%) patient. Elevated serum alpha-fetoprotein level was seen in all patients with a mean level of 311.39 ng/ml (range from 113 ng/ml to 911.6 ng/ml). Four (57%) patients underwent brain imaging which showed cerebellar atrophy in three of them. Genetic testing for A-T was not done in any patient due to unavailability. All these patients were still alive when we submitted this paper. A motor deficiency worsening was observed in 2 patients, who currently use a wheelchair since the age of 6 and 7 years old, respectively.
Conclusion: In children developing gait disorders with progressive cerebellar ataxia, physicians should look for ocular telangiectasia. In our setting, the diagnostic confirmation is based on elevated serum alpha-fetoprotein level.

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