Discussion
cough, organ damage, hypotension, hypertension, disturbance of consciousness
MINOR, RESPIRATORY DEPRESSION, HYPERTENSION, COMPLICATIONS
During ERCP anesthesia, insufficient depth of anesthesia will lead to cough, body movement, hypertension and increased heart rate. If the depth of anesthesia is too deep, respiratory and circulatory inhibition will occur. In particular, intraoperative hypotension may cause organ damage in elderly patients, resulting in adverse postoperative results [Propofol is widely used for gastrointestinal endoscopy patients, but it has significant limitations, including individual diferences in pharmacokinetics and pharmacodynamics, respiratory depression, hypotension, and lack effective antagonists [Alfentanil is widely used in intravenous general anesthesia. The combination of alfentanil and dexmedetomidine, ketamine or propofol has been well used in various short and minor operations [In the three experimental groups, group A had a higher incidence of body movements requiring the intervention of the surgeon, especially when the stimulus was strong (such as when the duodenal papilla or bile duct was stretched). The incidence of body movements requiring surgical intervention in group B and C was low. However, the incidence of deep breathing in group C patients was high, and the number of hypotension that needed to be treated increased, which had a certain impact on the operation of the surgeon. In comparison, surgeons were most satisfied with group B. In terms of recovery, group C took a long time. There were no complications such as delayed awakening, restlessness during awakening and disturbance of consciousness in the three experimental groups. Follow up after operation showed that no intraoperative awareness occurred in all patients.