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[Miliary tuberculosis in 27 children]
Insights
Miliary tuberculosis in children presents with malnutrition and neurological issues, often in infants. Central nervous system involvement was the primary cause of death in this Colombian study.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Miliary tuberculosis (TB) is a severe disseminated form of Mycobacterium tuberculosis infection.
- Pediatric TB presents unique challenges in diagnosis and management.
- Understanding the epidemiology and clinical features of childhood miliary TB is crucial for timely intervention.
Purpose of the Study:
- To describe the clinical characteristics, diagnostic challenges, and outcomes of miliary tuberculosis in children.
- To identify risk factors and common presentations in a Colombian pediatric population.
Main Methods:
- Retrospective review of 27 pediatric cases of miliary tuberculosis over 3.5 years.
- Analysis of clinical presentation, radiological findings, diagnostic procedures (liver biopsy, bacillus isolation), tuberculin test results, and mortality.
- Correlation of clinical features with patient demographics and exposure history.
Main Results:
- 27 children with miliary TB were identified, with 26% being infants under 12 months.
- Common symptoms included malnutrition, respiratory distress, neurological involvement, and fever.
- Chest X-rays showed micronodular infiltrates; liver biopsy aided diagnosis, but bacillus isolation was difficult.
- Tuberculin test positivity was low (30%).
- Central nervous system infiltration was the leading cause of death.
Conclusions:
- Miliary tuberculosis in children, particularly infants, requires high clinical suspicion due to nonspecific symptoms.
- Diagnostic challenges persist, highlighting the need for integrated diagnostic approaches.
- Early recognition and prompt treatment are vital to reduce mortality, especially in cases with central nervous system involvement.
Abstract:
In the course of 3 1/2 years, 27 children with miliary tuberculosis were seen at the Hospital Infantil Lorencita Villegas de Santos in Bogotá, Columbia. Twenty-six percent of cases were infants under 12 months of age. Typical clinical cases were malnourished patients with impairment of their general condition, light respiratory stress or neurologic meningoencephalic involvement and febrile syndrome having a high contact index with tuberculous relatives. Some of them were undergoing measles or whooping cough convalescence. The chest X-ray showed micronodular infiltration and some cases, with hiliar adenomegaly, effusion or caverns. The liver percutaneous biopsy was of great help. The isolation of the bacillus from exudates was difficult to achieve. Tuberculin test was positive only in 30%. Cause of death: infiltration of central nervous system.