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Interventional bronchoscopy for tuberculous tracheobronchial stenosis

Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore

CORRESPONDENCE: S-Y. Low, Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Outram Road, Republic of Singapore, 169608. Fax: 65 62271736. E-mail: gm3lsy@sgh.com.sg

Keywords: Interventional bronchoscopy, stenosis, stents, tuberculosis

Received: January 11, 2004
Accepted May 9, 2004

This study investigated the use of interventional bronchoscopic techniques in the management of patients with symptomatic tracheobronchial stenosis from tuberculosis.

The current authors evaluated their experience with interventional bronchoscopic techniques in 21 consecutive patients at the Singapore General Hospital, Singapore, from November 1994 to March 2001. All patients underwent rigid bronchocopy using the Dumon rigid ventilating bronchosope under general anaesthesia. A combination of techniques was used (mechanical or balloon dilatation, Nd-YAG laser and stenting using the Dumon stent).

The mean±SD increase in luminal diameter of the tracheal lesions was from 4.5±2.5 mm pre-procedure to 11.9±1.7 mm post-procedure, whereas that for the mainstem bronchi stenosis was from 2.6±1.0 mm to 8.3±2.4 mm. All patients had immediate relief of symptoms post-intervention. Two patients who presented with acute respiratory failure could be weaned off mechanical ventilation immediately post-procedure. At the end of the study period, 52% (11 out of 21) remained asymptomatic.

Bronchoscopic intervention provided immediate symptomatic relief in all of the studied patients. However, repeated sessions may be required to maintain this improvement. It is concluded that interventional bronchoscopic techniques are useful in the management of patients with tracheobronchial stenosis from tuberculosis.

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