Monitoring salivary amylase activity is useful for providing timely analgesia under sedation

Figure 3 Changes in the relative rate of increase of the salivary amylase activity level compared with the control level, salivary amylase activity (IR, %), with reference to the status of body movement in the H-group. The levels of IR that were not associated with body movement (9 episodes) were relatively higher than those associated with body movement (17 episodes); however, no significant differences were observed (^fP = 0.236). The patients received SE shown as the elevation of sAMY, even if they were unconscious and exhibited no body movement. The management of the sAMY might prevent the patient’s body movement that may occur in the near future. The data are presented as the mean ± SD. ESD: Endoscopic submucosal dissection; DS: Deep sedation; sAMY: Salivary amylase activity; SE: Sympathetic excitement; H-sAMY: A high value of salivary amylase activity; L-sAMY: A low value of salivary amylase activity.