Effect of laparoscopic cholecystectomy techniques on postoperative pain: a prospective randomized study / 대한외과학회지

PURPOSE: Minimally invasive surgical technics have benefits such as decreased pain, reduced surgical trauma, and increased potential to perform as day case surgery, and cost benefit. The primary aim of this prospective, randomized, controlled study was to compare the effects of single incision laparoscopic cholecystectomy (SILC) and conventional laparoscopic cholecystectomy (CLC) procedures regarding postoperative pain. METHODS: Ninety adult patients undergoing elective laparoscopic cholecystectomy were included in the study. Patients were randomized to either SILC or CLC. Patient characteristics, postoperative abdominal and shoulder pain scores, rescue analgesic use, and intraoperative and early postoperative complications were recorded. RESULTS: A total of 83 patients completed the study. Patient characteristics, postoperative abdominal and shoulder pain scores and rescue analgesic requirement were similar between each group except with the lower abdominal pain score in CLC group at 30th minute (P = 0.04). Wound infection was seen in 1 patient in each group. Nausea occurred in 13 of 43 patients (30%) in the SILC group and 8 of 40 patients (20%) in the CLC group (P > 0.05). Despite ondansetron treatment, 6 patients in SILC group and 7 patients in CLC group vomited (P > 0.05). CONCLUSION: In conclusion, in patients undergoing laparoscopic surgery, SILC or CLC techniques does not influence the postoperative pain and analgesic medication requirements. Our results also suggest that all laparoscopy patients suffer moderate and/or severe abdominal pain and nearly half of these patients also suffer from some form of shoulder pain.

clinical comparison of etomidate-lipuro, propofol and admixture at induction

The purpose of this study was to compare etomidate-lipuro and propofol and 50%, [1:1] admixture of these agents at induction with special reference to injection pain, hemodynamic changes, and myoclonus. Ninety patients were assigned at random to three groups in which induction was performed with either etomidate-lipuro, propofol or etomidate-lipuro-propofol admixture. After monitorization with bispectral index [BIS] all agents were given with infusion with a perfuser at a constant rate of 200 ml/min till the BIS values decreased to 40. Blood pressure and heart rate were measured every 30 s at this period. Patients were asked for pain at the injection site and observed visually for myoclonus. The time BIS values decreased to 40 [BIS 40 time] and total amounts of induction doses were measured. BIS 40 time measurements were P > E > PE [199.4 +/- 40.9, 176.9 +/- 31.6, 163.5 +/- 20.6 s]. The hemodynamic [systolic, diastolic and mean blood pressures, heart rate] changes were minimal in group PE than other two groups [P = 0.017]. The intensity of myoclonus was graded as mild in 9, moderate in 12, and severe in 5 patients in the group E [76.3%]. Myoclonus was not observed in group PE and group P. There were no injection pain in group PE as the incidence were [83.8%] in group P and in [63.2%] group E. Incidence of hemodynamic changes, myoclonus, and injection pain is significantly lower in group PE. BIS 40 times is least in group PE. We concluded that 1:1 admixture of etomidate-lipuro and propofol is a valuable agent for induction