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Archivos argentinos de pediatría

versión impresa ISSN 0325-0075versión On-line ISSN 1668-3501


PALANCA ARIAS, Daniel et al. Complete heart block and asystole in a child with ataxia-telangiectasia. Arch. argent. pediatr. [online]. 2017, vol.115, n.5, pp.e291-e293. ISSN 0325-0075.

Ataxia-telangiectasia is a disorder characterized by cerebellar ataxia, telangiectasia, immunodeficiency, and increased predisposition to cancer susceptibility. Mutations in the ataxia telangiectasia mutated gene seem to play an important role in normal cell function and in cardiovascular remodeling. We report a case of a 14-year-old boy with ataxia-telangiectasia and high-grade B-non-Hodgkin lymphoma who remained in continuous complete remission after chemotherapy and who was admitted into our Emergency Room presenting with episodes of presyncope. At admission he presented a complete atrioventricular block that evolved into asystole and required placement of a pacemaker. Cumulative cardiotoxic drugs received were at low risk. However, it is possible that this chronic degenerative disease may affect the cardiac conduction system over time. In the reviewed literature there are no or unknown reports of ataxia-telangiectasia with malignant cardiac arrhythmias.

Palabras clave : Ataxia-telangiectasia; Cardiac arrhythmias; Complete atrioventricular block; Artificial pacemaker.

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