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KMID : 1035620170050050287
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Allergy Asthma & Respiratory Disease
2017 Volume.5 No. 5 p.287 ~ p.293
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Usefulness of flexible bronchoscopy in children with suspected pulmonary tuberculosis who have difficulty in sputum expectoration
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Lee Hye-Jin
Park Yu-Mi
Yang Eun-Ae
Kim Hwan-Su
Chun Yoon-Hong
Yoon Jong-Seo
Kim Hyun-Hee
Kim Jin-Tack
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Abstract
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Purpose: To assess the usefulness of flexible bronchoscopy in patients with suspected pulmonary tuberculosis (PTB) who have difficulty in sputum expectoration.
Methods: The subjects of this study were patients who were suspected of PTB and visited the Division of Pediatric Pulmonology at a tertiary hospital from April 2006 to March 2016. PTB suspects were determined by clinical symptoms, radiologic findings, and immunologic studies. We aimed to examine the value and safety of bronchoscopy in diagnosis and differential diagnosis of PTB in PTB-suspected patients. The diagnostic criteria for PTB were defined when Mycobacterium tuberculosis was cultured in the sputum specimen or in the bronchial washing fluid.
Results: A total of 19 PTB suspects were included. One patient was diagnosed with PTB by using the sputum study. However, the remaining 18 patients could not expectorate sputum or showed no evidence of Mycobacterium tuberculosis infection from the sputum study. Of the 18 patients, 15 underwent bronchoscopy. After bronchoscopy, 6 patients were diagnosed with PTB and 9 patients were diagnosed with Mycoplasma, viral, or fungal pneumonia, and tumors. For antituberculous drug resistance, there were 1 case of isoniazid (INH) resistance and 1 case of concurrent resistance to INH and prothionamide. There was no multidrug-resistant tuberculosis. None of the patients had significant complications due to bronchoscopy.
Conclusion: Flexible bronchoscopy appears to be a definitive and safe procedure for the differential diagnosis of patients suspecting PTB in children who have difficulty expectorating sputum.
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KEYWORD
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Pulmonary tuberculosis, Bronchoscopy, Diagnosis, Diagnostic imaging
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