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Airway Management in Patients with Subglottic Stenosis: Experience at an Academic Institution

Knights, Richard M. MB, ChB, MRCP, FRCA; Clements, Stephan BM, BSc, MRCS, FRCA; Jewell, Elizabeth MS; Tremper, Kevin MD, PhD; Healy, David MD

doi: 10.1213/ANE.0b013e3182a6d1ab
Patient Safety: Brief Report

We describe a pilot study investigating the airway techniques used in the anesthetic management of subglottic stenosis. We searched the electronic clinical information database of the University of Michigan Health System for cases of subglottic stenosis in patients undergoing surgery. Demographics, airway techniques, incidence of hypoxemia, and technique failure were extracted from 159 records. A lower incidence of hypoxemia was found between the 4 most commonly used techniques and the less common techniques. We detected no difference in outcome between individual techniques. This study suggests a larger prospective multicenter study is required to further investigate these outcomes in patients with subglottic stenosis.

From the Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan.

Richard M. Knights, MB, ChB, MRCP, FRCA, and Stephan Clements, BM, BSc, MRCS, FRCA, are currently affiliated with Betsi Cadwaladr University Health Board, Bangor, United Kingdom.

Funding: Internal funding.

The authors declare no conflicts of interest.

This report was previously presented, in part, at the Difficult Airway Society Conference 2011.

Reprints will not be available from the authors.

Address correspondence to David Healy, MD, Department of Anesthesiology, University Hospital 1H2471500 E Medical Center Dr., SPC 5048 Ann Arbor, MI 48109-5048. Address e-mail to

© 2013 International Anesthesia Research Society