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Tuberc Respir Dis > Volume 43(1); 1996 > Article
Tuberculosis and Respiratory Diseases 1996;43(1):14-21.
DOI:    Published online September 4, 2015.
Clinical Features and Management of Multidrug-Resistant Tuberculosis.
Jae Cheol Lee, , Chul Gyu Yoo, , Hee Soon Cheong, , Young Whan Kim, , Sung Koo Han, , Young Soo Shim,
Department of Internal Medicine and Tuberculosis Institute, Seoul National University College of Medicine, Seoul, Korea.
OBJECTIVES: Although outbreak of MDR Tb has been a recent problem in western countries, it has been a longstanding problem in Korea. The poor outcome of MDR Tb is mainly due to poor compliance, high rate of side reaction of secondary drugs, and limitation in number of available drugs. Thus, to improve the outcome of MDR Tb,, it is crucial to make individualized adequate prescription based on the knowledge of the patterns of resistance to each drugs in the community as well as the natural history. The purpose of present study is to evaluate the clinical features of Korean MDR Tb patients including patterns of drug resistance and success rate of treatment which was prescribed according to the sensitivity tests. METHODS: Retroscpective analysis of 71 Korean patients with MDR Tb was made. All strains isolated from patients showed resistence to at least two first line drugs. Patients profile, previous treatment history, patterns of drug resistance, outcome of treatment was analysed. Initial treatment regimen was selected according to the previous treatment history and was modified according to the sensitivity reports. The regimen was composed to include at least 4 sensitive drugs when possible. RESULTS: The patients showed resistance to 4.1 drugs on average. 90% of them were resistant to INH and RFP. Among 71 patients, 35 patients(49%) had cavitary lesions in CXR. Treatment outcome was analysed in 55 patients. 35 patients(67%) were improved after treatment and 18 patients(33%) showed treatment failure. 5 patients showed primary resistance. Treatment outcome could be evaluated in 4 of them and all showed improvement after treatment. 14 patients(20%) had to change their regimens due to drug side effects. The most frequent side effect was elevation of liver enzymes(6 patients). Others included dizziness, hyperuricemia, tinnitus, skin rash, GI troubles. More than 50% of side effects developed within 3 months. In repeated drug sensitivity test, the concordance rate of resistance to INH was 100% and RFP 98%. EMB,PZA showed 80% concordance rate. But in the other drugs, the concordances were less than 50%. Operation was done in 5 patients - 1 patients as a adjunctive means of chemotherapy In that case, negative conversion of sputum AFB was done. CONCLUSION: 2/3 patients of multidrug-resistant tuberculosis were improved by appropriate prescription and regular medication suggesting that more aggressive management and monitoring is indicated in multidrug-resistant tuberculosis.
Key Words: Multidrug-resistant tuberculosis, Primary resistance

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