RESUMEN
Objective:To investigate the effects of hydromorphone on early postoperative recovery, postoperative analgesia and stress response in patients undergoing laparoscopic radical resection of colorectal cancer.Methods:120 patients with colorectal cancer who underwent laparoscopic radical resection of colorectal cancer in Taizhou Hospital of Zhejiang Province from June 2019 to June 2020 were included in this study. They were randomly assigned to undergo either postoperative patient-controlled intravenous analgesia with hydromorphone (observation group, n = 60) or postoperative patient-controlled intravenous analgesia with sugentanil (control group, n = 60). The changes of perioperative indexes, postoperative recovery, Visual Analogue Scale score at 3, 12 and 24 hours post-surgery, stress response [norepinephrine, interleukin-6 and cortisol] before and 3 days after surgery were compared between the two groups. Results:There were no significant differences in operative time and intraoperative blood loss between the two groups (both P > 0.05). The time to intestinal peristalsis, the time to getting out of bed, and the time to drainage tube removal in the observation group were (57.83 ± 8.98) hours, (43.12 ± 2.34) hours, and (121.38 ± 10.29) hours, which were significantly shorter than those in the control group [(65.21 ± 7.45) hours, (45.46 ± 2.19) hours and (150.28 ± 13.42) hours, t = 4.899, 5.656 and 13.238, all P < 0.05]. Visual Analogue Scale score in the observation group at 12 and 24 hours after surgery was (1.89 ± 0.27) points and (1.45 ± 0.23) points, respectively, which was significantly lower than that in the control group [(2.19 ± 0.24) points, (1.84 ± 0.20) points, t = 6.433, 9.911, both P < 0.05]. At 3 days after surgery, serum levels of norepinephrine, interleukin-6 and cortisol in the observation group were (185.49 ± 18.29) ng/L, (59.91 ± 6.89) ng/L, and (109.21 ± 15.46) μg/L, respectively, which were significantly lower than those in the control group [(235.41 ± 16.57) ng/L, (73.24 ± 7.68) ng/L, (128.39 ± 10.32) μg/L, t = 15.668, 10.008, 7.993, all P < 0.05]. Conclusion:Hydromorphone exhibits a good effect on laparoscopic radical resection of colorectal cancer because it can promote early postoperative recovery, has an obvious postoperative analgesic effect and little influence on stress response.