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[Peripheral neurological changes in chronic Chagas' disease].

J Fortes-Rêgo, V O Macedo, A Prata

    Arquivos De Neuro-Psiquiatria
    |March 1, 1980
    PubMed
    Summary

    This study investigates the chronic nervous form of Chagas' disease, identifying a mixed polyneuritis characterized by sensory loss and impaired reflexes in infected individuals. The findings suggest a distinct neuritic subtype within the neurological manifestations of Chagas' disease.

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    Area of Science:

    • Neurology
    • Infectious Diseases
    • Parasitology

    Context:

    • Chagas' disease, caused by Trypanosoma cruzi, presents complex neurological complications.
    • Peripheral neurological involvement is a significant, yet often understudied, aspect of chronic Chagas' disease.
    • A community in Bahia, Brazil, with a high prevalence of Trypanosoma cruzi infection was selected for this study.

    Purpose:

    • To review the literature on the chronic nervous form of Chagas' disease, focusing on peripheral neurological manifestations.
    • To analyze neurological findings in individuals from a high-prevalence Trypanosoma cruzi infection area.
    • To characterize a potential neuritic subtype of the nervous form of Chagas' disease.

    Summary:

    • A study of 99 individuals in Bahia, Brazil, revealed 50 positive serological tests for Chagas' disease.

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  • The most common neurological findings were sensory loss and impaired deep reflexes.
  • A mixed polyneuritis, characterized by abolished deep reflexes and mild sensory deficit, was identified in 15 of 18 Chagas' disease-positive individuals with reflex impairment.

    • Impact:

    • Suggests a distinct neuritic form, a subdivision of the nervous form of Chagas' disease.
    • Highlights the prevalence of mixed polyneuritis as a specific neurological presentation.
    • Contributes to a better understanding of the peripheral neurological sequelae of Chagas' disease.