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Automated Checkout Routines in Anesthesia Workstations Vary in Detection and Management of Breathing Circuit Obstruction

Dosch, Michael P. CRNA PhD

doi: 10.1213/ANE.0000000000000200
Technology, Computing, and Simulation: Brief Report

While rare, anesthesia breathing system obstruction can have devastating consequences. We created simulated occlusions of the expiratory and inspiratory limb of the circle breathing system in 3 current anesthesia workstations; Aisys, ADU (both by GE Healthcare, Madison WI), and Apollo (Draeger Medical, Telford, PA). The automated electronic checkout specific to each machine was then performed. The Aisys allowed users to accept both faults and initiate simulated patient care; the ADU and Apollo did not. Users must be aware of how to test for breathing circuit obstruction, and whether their own equipment does so adequately in the automated checkout.

Published ahead of print May 5, 2014

From the Department of Nurse Anesthesia, College of Health Professions, University of Detroit Mercy, Detroit, Michigan.

Accepted for publication January 9, 2014

Published ahead of print May 5, 2014

Funding: Self-funded.

Conflicts of Interest: See Disclosures at the end of the article.

Reprints will not be available from the author.

Address correspondence to Michael P. Dosch, CRNA, PhD, University of Detroit Mercy, 4001 W. McNichols Rd., Detroit, MI 48221-3038. Address e-mail to

© 2014 International Anesthesia Research Society