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Title: Efficacy and safety of different doses of dezocine for preemptive analgesia in gynecological laparoscopic surgeries: A prospective, double blind and randomized controlled clinical trial. Author: Zhou M, Wang L, Wu C, Yan L, Wang R, Sun B, Wang J. Journal: Int J Surg; 2017; 37 Suppl 1():539-545. PubMed ID: 29097325. Abstract: BACKGROUND: The incidence of reproductive system tumors in Chinese females is increasing year by year, with the trend of younger onset ages. Laparoscopic surgery has been recognized by the majority of medical staff and patients, but the postoperative pain still exists. Therefore, it has become the focus of attention of medical workers to take effective analgesia measures to alleviate postoperative pain as well as to improve the degree of comfort and satisfaction for the patients. OBJECTIVES: The research objective was to study the effect of different doses of dezocine preemptive analgesia on the safety and the pain post laparoscopic surgeries, in order to explore the best dose of dezocine for postoperative analgesia in gynecological laparoscopic surgeries. METHODS: Gynecological laparoscopic surgery patients conformed to the criteria (n = 390) were randomly divided into three groups (group A, B and C) by the methods of randomized, double-blind studies. 0.1 mg/kg, 0.15 mg/kg or 0.2 mg/kg dezocine was intravenously injected 15 min before surgeries for preemptive analgesia. VAS score, Ramsay score and MMSE score were used to evaluate the efficacy and safety of dezocine in preemptive analgesia and sedation, and the use of adjuvant analgesic drugs and the incidence of adverse reactions were also observed. RESULTS: The VAS scores of the 0.15 mg/kg and 0.2 mg/kg dezocine groups were significantly lower than that of the 0.1 mg/kg group at 2h, 4h, 6h, 8h, 12h and 24h post-surgery, and the difference was statistically significant (p < 0.05). There was no statistically significant difference between the 0.15 mg/kg and 0.2 mg/kg groups (p > 0.05) except for the 12h time point. The MMSE scores 12h post-surgery of the three groups were compared with those 12h prior-to-surgery, and the differences were not statistically significant (p > 0.05) and no increase in the incidence of cognitive impairment was observed. The use rate of analgesic drugs in the 0.1 mg/kg group was significantly higher than those in the 0.15 mg/kg and 0.2 mg/kg groups, and the difference was statistically significant (p < 0.05). There were no significant differences in the incidence of adverse events between the three groups (P > 0.05). CONCLUSIONS: The analgesia and sedation effects of dezocine were enhanced with the increase of usage dose, which suggested that the effects of dezocine were dose-dependent. Intravenous injection of 0.15 mg/kg dezocine 15 min before gynecological laparoscopic surgery showed better analgesic and sedative effects as well as less adverse reactions, and should be the appropriate dose to be used in the preemptive analgesia in gynecological laparoscopic surgeries.[Abstract] [Full Text] [Related] [New Search]