Zheng J, et al. - In this study, researchers intended to verify the correlation of bispectral index (BIS) and Richmond agitation sedation scale (RASS) for evaluating these and explore possibility of replacing RASS with BIS. They observed a correlation between BIS and RASS for assessing the depth of sedation in Intensive Care Unit patients undergoing flexible fiberoptic bronchoscopy. Overall, BIS monitoring appeared meaningful and showed the ability to be used as an adjunctive and alternative method to assess sedation, especially for high-risk patients who are prone to be under- or over-sedation.