Results
renal failure, postoperative nausea and vomiting, SD, pain, PONV
RENAL FAILURE, RECRUITMENT
A total of eighty-four patients were enrolled initially in the present study. Of these, four patients were excluded due to severe renal failure (
Demographic characteristics and procedure detailsData are expressed as mean ± SD, or number of patients (percent). Group N, normal saline group; Group M, magnesium sulfate group; BMI: body mass index; ASA, American Society of Anesthesiologists; ERCP, endoscopic retrograde cholangiopancreatography
Flow diagram of design and recruitment of participantsIntravenous magnesium significantly decreased the propofol consumption by 21.4% during the ERCP procedure (
Perioperative adverse eventsData are expressed as number of patients (percent). Group N, normal saline group; Group M, magnesium sulfate group; PONV, postoperative nausea and vomiting
Data related to sedation and recoveryData are expressed as mean ± SD, or medians with the upper and lower quartiles. Group N, normal saline group; Group M, magnesium sulfate group; ERCP, endoscopic retrograde cholangiopancreatographyNone of the patients required analgesic rescue during postoperative evaluation. But the patients in the group M experienced less pain than those in the group N at 30 min after the procedure (1 [0–1] vs. 2 [1–2], respectively; The MAP and peripheral blood oxygen saturation were not significantly different at any time point between the two group (Fig. 
Hemodynamic parameters and RSS scores of the patients at different time points. Table 