title: [Preemptive analgesic effect of parecoxib sodium in patients undergoing laparoscopic colorectal surgery].
abstract: OBJECTIVE
  To investigate the preemptive analgesic efficiency of parecoxib in patients undergoing laparoscopic colorectal surgery.
  
  
  METHODS
  Forty ASA I-II patients aged 30 to 64 years undergoing laparoscopic colorectal surgery were randomized to receive either intravenous parecoxib sodium (40 mg) at anesthesia induction (group A) or intravenous parecoxib sodium (40 mg) 30 min before the completion of surgery (group B). Butorphanol was administered by patient-controlled analgesia for postoperative analgesia. The intensity of pain measured by VAS score was recorded at 2, 4, 6, 8, 12, and 24 h after the operation. The number of unsatisfied demand and the number of successfully delivered doses, butorphanol consumption at 12 h and 24 h after the operation, the patients' global evaluation of the postoperative analgesia and the number of the patients receiving rescue medication and adverse effects related to analgesia were recorded and compared between the two groups.
  
  
  RESULTS
  The VAS scores at different time points were significantly lower in group A than in group B (P<0.05). The number of unsatisfied demand and the number of successfully delivered doses were significantly higher and butorphanol consumption at 12 h and 24 h after the operation was significantly less in group A (P<0.05). The incidence of adverse events was similar between the two groups.
  
  
  CONCLUSIONS
  Administration of 40 mg parecoxib sodium at anesthesia induction in the patients undergoing laparoscopic colorectal surgery can result in significant preemptive analgesia.
authors.affiliation: Department of Anesthesiology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou 510080, China. wqzly@ hotmail.com
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.forename: Zhi-peng
authors.initials: ZP
authors.lastname: Wang
authors.forename: Can
authors.initials: C
authors.lastname: Cui
mesh_terms: D000328:Adult; D000698:Analgesia / Q000379:methods*; D016058:Analgesia, Patient-Controlled; D000701:Analgesics, Opioid / Q000008:administration & dosage; D002077:Butorphanol / Q000008:administration & dosage; D003107:Colorectal Surgery; D006801:Humans; D007555:Isoxazoles / Q000008:administration & dosage*; D010535:Laparoscopy; D008875:Middle Aged
chemical_list: D000701:Analgesics, Opioid; D007555:Isoxazoles; C409945:parecoxib; D002077:Butorphanol