Effect of Dexmedetomidine Combined with Propofol or Sevoflurane General Anesthesia on Stress and Postoperative Quality of Recovery(QoR-40) in Patients Undergoing Laparoscopic Surgery

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Objective: To explore the effects of dexmedetomidine combined with propofol or sevoflurane general anesthesia on stress and postoperative quality of recovery (QoR-40) in patients undergoing laparoscopic surgery. Methods: Two hundreds patients with laparoscopic gastrointestinal tumor resection (100 cases of gastric tumor and 100 cases of colon tumor) from March 2016 to January 2018 at Henan Cancer Hospital,were randomly divided into 4 groups(n=50): group SP (gastric neoplasm + propofol anaesthesia), group SS (gastric tumor + sevoflurane anaesthesia), group CP (colon tumor+ propofol anaesthesia), and group CS (colon tumor + sevoflurane anaesthesia). The four groups were all induced by dexmedetomidine, etomidate, sufentanil and cisatracurium. The patients in group SP and group CP were administered with propofol, and the patients in group SS and group CS were given general anesthesia with sevoflurane. The results of the operation and the quality of recovery were compared. The heart rate, mean arterial pressure change, norepinephrine, epinephrine and cortisol were measured in T0 (before anesthesia started), T1 (30 min after surgery), T2 (10 min after tracheal catheter extraction), T3 (24 h after surgery), T4 (postoperative 48 h), respectively. The postoperative recovery quality after operation was evaluated by QoR-40. Results: There were no significant differences in operation time, bleeding volume and other operation conditions between each group (all P>0.05), and also no significant differences in heart rate and mean arterial pressure from T0 to T4 time points (all P>0.05). There were significant differences in the levels of norepinephrine and cortisol among the four groups at T1 and T2 time points (F=54.135,140.733,12.037, 21.644,all P<0.05). The levels of norepinephrine and cortisol in SP group at T1 and T2 time points were less than SS group (all P<0.05). Similar, those in CP group were less than CS group (P<0.05). However, there was no significant difference among the 4 groups at other time points (all P>0.05). The scores of VAS and RS in SP group were (0.9±0.4) and (0.8±0.4), which were lower than that of SS group(1.4±0.5,1.4±0.5,all P<0.05).At the same time, the time of regain consciousness was (9.3±1.4) min, which was also lower than SS group [(10.1±1.4)min,P<0.05]. The scores of VAS and RS in CP group were (0.8±0.5) and (0.8±0.4), which were lower than that of CS group(1.4±0.5,1.4±0.4,all P<0.05).At the same time, the time of regain consciousness was (9.2±1.2)min,which was also lower than CS group [(10.1±1.2)min,P<0.05]. The recovery quality scores of the SP and CP group were (164±11) and (168±11) after 24 hours, which were greater than that of the SS and CS group(146±10, 143±12, all P<0.05). Conclusion: Dexmedetomidine combined with propofol in laparoscopic surgery can effectively suppress intraoperative stress, reduce postoperative pain and agitation, and improve the quality of postoperative recovery.