Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Current Issue: 2010 - Volume 36 - Number 3 (May/June)

AUTHOR'S REPLY

Author`s reply

Resposta ao autor

 

Cinthia Pedrozo; Clemax Couto Sant'Anna; Maria de Fátima B. Pombo March; Sheila Cunha Lucena

 

 

 

To the Editor:

We thank Dr. Viroj for the interest in our article and the questions raised.

Latent tuberculosis (TB) is indeed a major problem because it is a challenge to define latent and active TB in childhood. In practice, the contact tracing made with tuberculin skin testing and chest radiography (not always available in developing countries) allows the identification of those cases that should receive treatment for latent TB. Currently, the use of interferon gamma release assays is not recommended in childhood, and they are also very expensive.

The Brazilian National Ministry of Health (NMH) system aims to detect cases of active TB in children (< 10 years old). In our view, this is an even bigger challenge because, in general, there is no bacteriological confirmation. In addition, we studied uninfected children and those infected with HIV (i.e., immunosuppressed children). We believe that the contribution of the Brazilian NMH system is to provide a diagnostic tool to physicians working in rural and peri-urban health care units, with few technological resources. The difficulties suggested in the use of this system refer to the radiological interpretation by general practitioners. In our view, this is a crucial problem related to TB in childhood. Finally, although there have been no studies evaluating the cost-effectiveness of the NMH system, the properties of the diagnostic test have been evaluated.

Using a cut-off value of 30, the sensitivity was 89% and the specificity was 86%.(1)

Cinthia Pedrozo
Physician. Universidade Federal Fluminense - UFF,
Fluminense Federal University - Niterói, Brazil

Clemax Couto Sant'Anna
Associate Professor. Universidade Federal do Rio de Janeiro - UFRJ,
Federal University of Rio de Janeiro - School of Medicine, Rio de Janeiro, Brazil

Maria de Fátima B. Pombo March
Adjunct Professor. Universidade Federal do Rio de Janeiro - UFRJ,
Federal University of Rio de Janeiro - School of Medicine, Rio de Janeiro, Brazil

Sheila Cunha Lucena
Physician. Raphael de Paula Souza Hospital, Rio de Janeiro, Brazil


References


1. Sant'Anna CC, Orfaliais CTS, March Mde F, Conde MB. Evaluation of a proposed diagnostic scoring system for pulmonary tuberculosis in Brazilian children. Int J Tuberc Lung Dis. 2006;10(4):463-5.

 

 


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