Bispectral Monitoring No Help for Colonoscopy Sedation

Technique does not reduce propofol use, recovery time

THURSDAY, Sept. 28 (HealthDay News) -- Bispectral monitoring, a non-invasive way to measure consciousness, does not seem to help during nurse-administered propofol sedation for colonoscopy, according to a report in the September issue of the American Journal of Gastroenterology.

Douglas K. Rex, M.D., from the Indiana University School of Medicine in Indianapolis, and colleagues conducted a randomized trial of bispectral monitoring for 102 patients undergoing colonoscopy. Monitoring was used on all patients, but nurses and endoscopists could see the monitor in only some of the cases.

The authors found no difference in recovery time or propofol use in the group that was able to see the monitor compared with controls, whether they were instructed to use the technique simply as an adjunctive measure of titration or if they used bispectral monitoring values as the primary endpoint for titration of sedation.

"The provision of sedation for procedures and tests is labor intensive and, for the foreseeable future, requires human resources far and above those which can be met by individuals whose primary training was in anesthesia care," according to the authors of an accompanying editorial. "The study [finding] serves to illustrate how there are ample opportunities for us to help each other learn how to continually improve upon our knowledge and patient care."

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