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AMBULATORY ANESTHESIA

The Effect of Music on Preoperative Sedation and the Bispectral Index

Suleyman Ganidagli, MD^*, Mustafa Cengiz, MD^*, Medaim Yanik, MD, Cevdet Becerik, MD^*, and Bahriye Unal, MD^*

Departments of *Anesthesiology and Psychiatry, Harran University, School of Medicine, Sanliurfa, Turkey

Address correspondence and reprint requests to Suleyman Ganidagli, MD, Harran Universitesi Tip Fakultesi, Anesteziyoloji Ve Reanimasyon Anabilim Dali, TR-63100 Sanliurfa, Turkey. Address e-mail to sganidagli{at}hotmail.com.

We assessed the effect of music on the level of sedation and the electroencephalograph bispectral index (BIS) during the preoperative period. Fifty-four ASA physical status I–II patients, scheduled for elective septo-rhinoplastic surgery, were included in the study. Subjects were assigned to receive either music (music group; n = 28) or no music (control group; n = 26) during the preoperative period. Sedative premedication was provided with midazolam 0.08 mg/kg IM. Observer’s Assessment of Alertness/Sedation Scales (OAAS) scores and BIS values were recorded at specific time intervals. In the control group, there were more patients with an OAAS score of 1 than in the music group at 30 min after midazolam injection. In addition, there were more patients with an OAAS score of 2 in the control group than in the music group at 30–50 min. However, there were significantly more patients with an OAAS score of 3 in the music group than in the control group at 20–50 min. BIS values of the music group were also smaller than the control group at 30 and 40 min. BIS values were significantly decreased from baseline values at 10–50 min in the music group, whereas BIS values decreased at 30–50 min in the control group. In conclusion, listening to music during midazolam premedication is associated with an increase in sedation level in the preoperative period as reflected by a lower BIS value.

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Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999