A Prospective Safety Study of a Low-Dose Propofol Sedation Protocol for Colonoscopy  Brian W. Sipe, Mark Scheidler, Arthur Baluyut, Betty Wright  Clinical Gastroenterology and Hepatology  Volume 5, Issue 5, Pages 563-566.e1 (May 2007) DOI: 10.1016/j.cgh.2007.01.013 Copyright © 2007 AGA Institute Terms and Conditions

Figure 1 Mean Bispectral index (BIS) values over 2-minute time intervals. The BIS manufacturer has defined conscious sedation as a BIS of 70–90, deep sedation as 60–70, and general anesthesia as 40–6011 (error bars ± SD). Clinical Gastroenterology and Hepatology 2007 5, 563-566.e1DOI: (10.1016/j.cgh.2007.01.013) Copyright © 2007 AGA Institute Terms and Conditions

Figure 2 Blood pressure over 2-minute time intervals. Circles indicate mean systolic blood pressure. Squares depict mean diastolic blood pressure (error bars ± SD). , Systolic blood pressure; , diastolic blood pressure. Clinical Gastroenterology and Hepatology 2007 5, 563-566.e1DOI: (10.1016/j.cgh.2007.01.013) Copyright © 2007 AGA Institute Terms and Conditions