Successful treatment of bronchial obstruction by flexible bronchoscopy and isoniazid: A case report

Chen,Hengyi; Hong,Xin; He,Yong

doi:10.3892/etm.2013.1423

Successful treatment of bronchial obstruction by flexible bronchoscopy and isoniazid: A case report

Authors:
- Hengyi Chen
- Xin Hong
- Yong He
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Affiliations: Department of Respiratory Medicine, Daping Hospital, The Third Military Medical University, Chongqing 400042, P.R. China
Published online on: November 25, 2013 https://doi.org/10.3892/etm.2013.1423
Pages: 397-400

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Abstract

Interventional bronchology techniques have been employed as an effective first‑line treatment in patients with tracheobronchial obstruction. However, recurrent stenosis produced by granulation tissue requires repeated procedures. Previous studies have indicated that isoniazid regulates collagen deposition and decreases collagen content. Thus, isoniazid has been successfully administered to patients with lesions who exhibited a delay in the healing process. A case of a left mainstem obstruction managed by interventional bronchology is described in the present study. Repeated bronchial stenosis was observed even following numerous treatment procedures, however, administration of isoniazid resulted in the inhibition of hypertrophic scar formation and prevention of repeated stenosis. The suppressive effect of isoniazid on granulation formation and further observations are reported. Few studies have been conducted with regard to the function of isoniazid in suppressing scar hyperplasia, therefore, the mechanism requires further investigation.

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