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[Tuberculous meningoencephalitis]
P Campos1, D Guillén, H Hernández
1Hospital Nacional Cayetano Heredia, Departamento de Pediatría, Universidad Cayetano Heredia, Lima, Peru.
Insights
Pediatric tuberculous meningitis (TBM) is a severe complication of tuberculosis, particularly in developing nations. This review highlights TBM
Area of Science:
- Pediatric Infectious Diseases
- Neurology
- Public Health
Background:
- Tuberculosis (TBC) remains a significant public health challenge in developing countries.
- Meningo-encephalitis secondary to TBC (ME TBC) is the most severe complication in children, contributing to TBC-related mortality.
- Understanding ME TBC's characteristics is crucial for improving pediatric outcomes.
Purpose of the Study:
- To review the aetiopathological, clinical, and prognostic features of ME TBC in children.
- To compare these characteristics with data from local university studies conducted between 1984 and the present.
- To identify trends and differences in ME TBC presentation, outcomes, and treatment.
Main Methods:
- Literature review of aetiopathological, clinical, and prognostic aspects of ME TBC.
- Comparative analysis of existing literature with three local university studies (1984-present).
- Evaluation of treatment recommendations and the role of adjunctive therapies like steroids.
Main Results:
- ME TBC typically arises from an unknown (often pulmonary) focus, with basal exudate formation explaining clinical manifestations.
- Findings align with literature on subacute/chronic meningo-encephalitis presentation.
- Observed differences include a trend towards older children, significantly lower mortality, and less than 50% long-term sequelae incidence compared to expectations.
Conclusions:
- ME TBC requires a comprehensive understanding of its pathogenesis and clinical course.
- Local data suggests improved outcomes (lower mortality and sequelae) compared to historical or broader literature.
- Standard treatment remains four-drug therapy for twelve months, with steroids showing no proven benefit for mortality or morbidity.
Abstract:
Tuberculosis (TBC) in children is still a public health problem in developing countries. Its most serious complication in children is meningo-encephalitis (ME TBC), which is one of the main causes of death from TBC. The objective of this review is to outline its aetiopathological, clinical and prognostic characteristics and compare these with three studies made in our University between 1984 and the present time. METBC is always a complication secondary to an unknown (but often pulmonary) focus. The morbid anatomy of the deposit of basal exudate explains all the subsequent clinical findings. The data given in the literature regarding the commonest presentation, that of subacute or chronic meningo-encephalitis, is similar to our findings. However there are some differences. These are: a tendency to presentation in older children, much lower mortality, a long-term incidence of sequelae of less than 50% which is much less than would be expected (especially in certain areas of superior nerve function). With regard to treatment, we emphasize that the standard recommendation is still to use four drugs for twelve mouths. Although steroids have not been shown to be of use with regard to either mortality or morbidity, they continue to be given.