Tuberc Respir Dis > Volume 44(6); 1997 > Article
Tuberculosis and Respiratory Diseases 1997;44(6):1234-1244.
DOI:    Published online December 1, 1997.
Analysis of Causes for Primary Treatment Failure of Pulmonary Tuberculosis.
Seung Kyu Park, In Hwan Choi, Cheon Tae Kim, Sun Dae Song
Clinical Institute, National Masan Tuberculosis Hospital, Masan, Korea.
Nowadays drug resistant tuberculosis is making problems in the treatment of pulmonary tuberculosis and its number is increasing. Several reasons for this are considered including irregular medication, poor drug compliance and wrong regimens. But there are treatment failure cases in spite of regular medication with short-term standard regimens. We reviewed clinical data of 50 patients to find out possible causes of this. METHODS: Subject of this study was 50 patients who failed in the primary treatment of pulmonary tuberculosis in spite of regular medication with short-term standard regimens. All of them were under treatment with secondary regimens in National Masan Tuberculosis Hospital on Oct. 1996. The patient's records were analyzed retrospectively and direct interviews with patients were done. RESULTS: There were relatively more patients in the age of 20th. Male overwhelmed in number. There were smoking in 22 patients and drinking in 24 patients during medication. 17(34%) patients had family history of tuberculosis. Public health center was the most common site for the initial diagnosis among medical institutes. 42 patients had subjective symptoms for pulmonary tuberculosis. 38 patients got sufficient explanation from medical institute about tuberculosis and medication courses. 24 patients had bilateral lesions on chest X-ray film and 43 patients had cavitary lesions. 29 patients had past history for pulmonary tuberculosis with regular medication. The results of drug sensitivity test showed resistance in 41 patients of whom we could get the results CONCLUISON: Main cause of treatment failure of pulmonary tuberculosis in spite of regular medication with short-term standard regimens was drug resistance. Several factors were considered to be related to high prevalence of drug resistance, including age of 20th, male, family history for tuberculosis, bilateral lesions or remaining cavitary lesion on chest X-ray film.
Key Words: Pulmonary tuberculosis, Treatment failure, Drug resistance

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