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

Figure 2 Changes in the relative rate of increase of the salivary amylase activity level compared with the control level, salivary amylase activity (IR, %), the systolic blood pressure (mmHg) and pulse rate (/min) around the 26 episodes of salivary amylase activity elevation in the H-group. The values of systolic blood pressure and pulse rate also remained stable during ESD, regardless of the change in the sAMY (^dP = 0.660 and ^eP =0.614, respectively). 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.