FEATURES OF BRONCHIAL TUBERCULOSIS-An Analysis of 103 Cases-

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  • 気管支結核の現状―１０３例の解析―
  • キカンシ ケッカク ノ ゲンジョウ 103レイ ノ カイセキ

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Abstract

[Objectives] The aim of this study is to clarify the features of bronchial tuberculosis.<BR>[Materials and meth ods] We analyzed the clinicopathological data from 103 out of 4467 (2.3%) cases of culture positive tuberculosis admitted to the National Hospital Organization Tokyo National Hospital in the period from 1993 to 2004 in which bronchial tuberculosis was confirmed by bronchofiberscopy.<BR>[Results] There were 62 women and 41 men, and 53 cases were less than 50 years old. The most common symptom, namely cough was observed in 70 cases, while 79 cases showed III 1to III 2 on roentgenographic examination, and 81cases were smear-positive for acid-fast bacilli in the sputum. Regarding the bronchofiberscopic findings, ulcers were detected in 60 cases, and the major site of bronchial tuberculosis was in the left main bronchus (35 cases). The number of the cases in which the time span from the onset of symptoms to diagnosis took over 3 months was 29, and 26 of them were “doctor's delay” cases which had a history of medical consultation resulting in diagnosis and treatment of other diseases, such as bronchial asthma (7 cases). There were 41cases in which the second bronchofiberscopic findings have been reviewed, and regardless of the length of the span from the onset to diagnosis, the first bronchofiberscopy mostly revealed ulcer within 1 month after the start of treatment for tuberculosis, and 3 months after the start of treatment, many patients developed fibrous scars. Between 1999 to 2004, the first bronchofiberscopies were usually performed within 2weeks to I month after the start of the treatment in contrast to the cases admitted between 1993 to 1998 in which bronchofribroscopy was mainly performed before the start of the treatment. However, there were no differences in the findings due to the timing of bronchofiberscopy.<BR>[Conclusion] The clinica l characteristics of bronchial tuberculosis have not changed, and the delay of diagnosis of bronchial tuberculosis due to doctor's delay also continues to be an important issue today. In patients showing positive sputum smear for mycobacteria, the timing of bronchofiberscopy, although required upon medical examination, is considered to be more appropriately performed from 2 weeks to 1 month after the start of treatment from the view point of nosocomial tuberculosis infection control strategy.

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