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Free Content Pulmonary TB bacteriologically confirmed by induced sputum among children at Bugando Medical Centre, Tanzania

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BACKGROUND: The diagnosis of paediatric tuberculosis (TB) remains difficult in resource-: poor settings.

OBJECTIVE: To evaluate induced sputum collection and examination using microscopy, culture and Xpert® MTB/RIF assay for the diagnosis of pulmonary TB (PTB) in a Tanzanian hospital vs. PTB diagnosis using clinical scoring tools alone.

METHODS: We conducted a cross-sectional study from October 2013 to April 2014 at our hospital in northwestern Tanzania. Children presumed to have TB were assessed using four TB score charts and sputum examination. Sputum samples were analyzed using fluorescence microscopy, solid culture and Xpert. The number of cases microbiologically confirmed was compared to the number of TB cases suspected based on TB score charts.

RESULTS: A total of 192 patients were enrolled. Sputum specimens were successfully obtained in 187 (97.4%) patients without any major complications. Ten (5.2%) children were confirmed to have PTB by sputum examination. More than half (50–90%) of the confirmed cases were not detected by score charts alone.

CONCLUSION: Sputum induction is both safe and feasible in a severely resource-limited hospital, and can lead to microbiological PTB diagnosis that would not be detected by clinical criteria alone.
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Keywords: childhood TB; induced sputum; tuberculosis score charts

Document Type: Research Article

Affiliations: 1: *Mbeya Medical Research Centre, National Institute for Medical Research, Mbeya, Catholic University of Health and Allied Sciences, Bugando, Mwanza 2: Catholic University of Health and Allied Sciences, Bugando, Mwanza, Bugando Medical Centre, Mwanza 3: Catholic University of Health and Allied Sciences, Bugando, Mwanza 4: Bugando Medical Centre, Mwanza 5: §School of Medicine of the University of Dodoma, Dodoma, Tanzania 6: *Mbeya Medical Research Centre, National Institute for Medical Research, Mbeya, Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich, Munich 7: Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich, Munich 8: Catholic University of Health and Allied Sciences, Bugando, Mwanza, Bugando Medical Centre, Mwanza, Weill Cornell Medical College, New York, New York, USA

Publication date: February 1, 2016

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  • The International Journal of Tuberculosis and Lung Disease publishes articles on all aspects of lung health, including public health-related issues such as training programmes, cost-benefit analysis, legislation, epidemiology, intervention studies and health systems research. The IJTLD is dedicated to the continuing education of physicians and health personnel and the dissemination of information on tuberculosis and lung health world-wide.

    Certain IJTLD articles are selected for translation into French, Spanish, Chinese or Russian. They are available on the Union website

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