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Bronchoscopy |

Use of an Ultrathin Bronchoscope in the Assessment of Central Airway Obstruction*

Macé M. Schuurmans; Gaëtane C. Michaud; Andreas H. Diacon; Chris T. Bolliger
Author and Funding Information

*From the Lung Unit (Drs. Schuurmans, Diacon, and Bolliger), Department of Internal Medicine, University of Stellenbosch, Tygerberg, Cape Town, South Africa; and Division of Respiratory Medicine (Dr. Michaud), University of British Columbia, Vancouver, BC, Canada.

Correspondence to: Macé M. Schuurmans, MD, Department of Internal Medicine, Lung Unit, University of Stellenbosch, Clinical Building, PO Box 19063, 7505 Tygerberg, Cape Town, South Africa; e-mail: mms2@sun.ac.za



Chest. 2003;124(2):735-739. doi:10.1378/chest.124.2.735
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Study objective: To assess the utility of an ultrathin bronchoscope (UB) in the assessment of central airway obstruction (CAO).

Design: Prospective evaluation

Setting: Tygerberg Hospital, a tertiary teaching hospital.

Patients: Consecutive patients referred to the Lung Unit with CAO.

Interventions: Fiberoptic bronchoscopy (FOB) was performed with a prototype UB (Olympus BF XP40; Olympus Europe; Hamburg, Germany; outer diameter, 2.8 mm; working channel, 1.2 mm). The UB was used whenever a standard bronchoscope (SB) could not pass the obstruction or could not be tolerated by the patient.

Measurements and results: Data relating to indication and performance of FOB, patient demographics, utility in establishing a diagnosis, and planning definitive management were documented. Twenty-four patients (17 men; mean age, 46 years) were studied. Twelve patients (50%) had malignant CAO, 8 patients (33%) had benign tracheal stenosis, 3 patients (12.5%) had stent occlusion, and 1 patient (4%) had bilateral vocal cord paralysis. In 42% of patients, an initial attempt at passing the obstruction with an SB had failed. Vocal cords or trachea were involved in 62% of patients. The mean luminal occlusion was 84% of the total airway lumen (range, 50 to 100%). One complication (desaturation) led to early termination of FOB. In all but three patients with complete obstruction, the UB was able to pass the CAO and allowed assessment of the obstruction and the distal airways (87%).

Conclusion: UB-FOB was useful and safe in the assessment of patients with CAO from both benign and malignant disease. It aided in establishing a diagnosis and/or planning of definitive management in all patients examined.

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