Anesth Analg 2006;102:383-388
© 2006 International Anesthesia Research Society
doi: 10.1213/01.ANE.0000184115.57837.30
PEDIATRIC ANESTHESIA
Validation of the Bispectral Index Monitor for Measuring the Depth of Sedation in Children
Senthilkumar Sadhasivam, MD,
Arjunan Ganesh, MBBS,
Amy Robison, BA,
Robin Kaye, MD, and
Mehernoor F. Watcha, MD
Departments of Anesthesiology and Radiology, The Childrens Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
Address correspondence and reprint requests to Mehernoor F Watcha, MD, Department of Anesthesiology, Main Building, 9th floor, The Childrens Hospital of Philadelphia, Philadelphia, PA 19104, USA. Address e-mail to watcha{at}email.chop.edu.
The Bispectral Index (BIS) is an empirically calibrated number derived from adult electroencephalograph data that correlates with the depth of sedation in adults. We tested the hypothesis that the BIS score is a valid measure of the depth of pediatric sedation in a study designed to avoid limitations of a previously published report. BIS values from 96 healthy ASA physical status III children aged 112 yr undergoing sedation were continually recorded and electronically transferred to a computer. Two independent observers blinded as to BIS score evaluated sedation using the Observers Assessment of Alertness/Sedation (OAA/S) and the University of Michigan Sedation Scale (UMSS) at 35 min intervals. There was a significant correlation between BIS and UMSS and between BIS and OAA/S by both the Spearmans rank correlation test and by prediction probability (P < 0.001). In children <6 yr, there was a significant correlation between BIS and the clinical sedation scores for subgroups undergoing invasive and noninvasive procedures (P < 0.001). There was also good agreement between the 2 independent observers who assessed clinical sedation scores (kappa = 0.51, P < 0.001). We conclude that the BIS monitor is a quantitative, nondisruptive and easy to use depth of sedation monitor in children.
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