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Spectrum of Pediatric Tuberculosis in a Tertiary Care Setting in South India.
Journal of Tropical Pediatrics 2018 Februrary 14
Background: Pediatric tuberculosis (TB) is often underdiagnosed with poor estimate of its true burden. Availability of Xpert MTB/RIF assay enhances diagnostic capacity of pediatric TB.
Methods: A 3-year retrospective review of hospital records was done for all children diagnosed with confirmed and unconfirmed TB. Comparison was made between intrathoracic, single-site extrathoracic and disseminated TB.
Results: In total, 274 children had TB with 130 (47.4%) having confirmed TB. Pulmonary (23.4%), lymph node (23%) and central nervous system (12.8%) TB were the three commonest forms. HIV TB coinfection was 2.9%. Mycobacterial culture was positive in 90 (32.8%) and XPert MTB/RIF in 85 patients (31%). Mycobacterial confirmation was obtained in 45 (56.3%) intrathoracic TB, 69 (45.4%) extrathoracic TB and 16 (38.1%) disseminated TB. Correlation between positive Xpert and mycobacterial culture was poor (kappa 0.38). Rifampicin resistance was present in 25 (19.2%) of the 130 microbiologically confirmed TB.
Conclusion: Extrathoracic TB is common in children. Mycobacterial confirmation in pediatric TB is improved with use of Xpert.
Methods: A 3-year retrospective review of hospital records was done for all children diagnosed with confirmed and unconfirmed TB. Comparison was made between intrathoracic, single-site extrathoracic and disseminated TB.
Results: In total, 274 children had TB with 130 (47.4%) having confirmed TB. Pulmonary (23.4%), lymph node (23%) and central nervous system (12.8%) TB were the three commonest forms. HIV TB coinfection was 2.9%. Mycobacterial culture was positive in 90 (32.8%) and XPert MTB/RIF in 85 patients (31%). Mycobacterial confirmation was obtained in 45 (56.3%) intrathoracic TB, 69 (45.4%) extrathoracic TB and 16 (38.1%) disseminated TB. Correlation between positive Xpert and mycobacterial culture was poor (kappa 0.38). Rifampicin resistance was present in 25 (19.2%) of the 130 microbiologically confirmed TB.
Conclusion: Extrathoracic TB is common in children. Mycobacterial confirmation in pediatric TB is improved with use of Xpert.
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