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Anesth Analg 2009; 108:1560-1563
© 2009 International Anesthesia Research Society
doi: 10.1213/ane.0b013e31819c2aa3
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Right arrow Regional Anesthesia

PATIENT SAFETY

Levels of Consciousness During Regional Anesthesia and Monitored Anesthesia Care: Patient Expectations and Experiences

Roy K. Esaki, MS, and George A. Mashour, MD, PhD

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

Abstract

Complaints of "intraoperative awareness" after regional anesthesia and monitored anesthesia care have been reported. We hypothesized that this may be due to either unmet expectations regarding levels of consciousness or states of consciousness resembling general anesthesia. A structured interview assessing expected and experienced levels of consciousness was given to 117 patients who underwent regional anesthesia or monitored anesthesia care. Complete unconsciousness was the state most often expected and subjectively experienced. Furthermore, only 58% of patients had expectations set by the anesthesia provider. These data indicate that, from the patient’s perspective, the boundary between general and nongeneral anesthesia is obscured.






Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins and Stanford University Libraries' HighWire Press®. Copyright 2009 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 2009 by the International Anesthesia Research Society.