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1.
Chinese Journal of Postgraduates of Medicine ; (36): 222-226, 2017.
Article in Chinese | WPRIM | ID: wpr-510436

ABSTRACT

Objective To compare the effects of smoking and non smoking on postoperative pain of laparoscopic cholecystectomy. Methods Sixty patients having underwent selective laparoscopic cholecystectom were divided into smoking group and non smoking group by random digits table with 30 cases each. In smoking group, 14 cases quitted smoking within 1 week before operation. The Fagerstrom test of nicotine dependence (FTND) was evaluated before operation in smoking group, and FTND ≥ 6 scores was in 11 cases. The visual analog score (VAS), Bruggrmarm comfort score (BCS), sedation-agitation score (SAS), immediately, 15 min, and 30 min after entering postanesthesia care unit (PACU) and leaving PACU was evaluated. The operation time, anesthesia time, wake up time, extubation time, PACU time, using rate of remedial measures and untoward reaction were recorded. Results There were no statistical differences in operation time, anesthesia time, wake up time, extubation time, SAS and incidence of untoward reaction between 2 groups (P>0.05). The PACU time and using rate of remedial measures in smoking group were significantly higher than those in non smoking group:(39.7 ± 5.1) min vs. (31.3 ± 6.1) min and 30.0% (9/30) vs. 0, and there were statistical differences (P<0.05). The VAS immediately, 15 min and 30 min after entering PACU and leaving PACU in smoking group was significantly higher than that in non smoking group: (2.90 ± 0.85) scores vs. (1.00 ± 0.83) scores, (2.70 ± 0.47) scores vs. (0.73 ± 0.69) scores, (2.60 ± 0.56) scores vs. (1.13 ± 0.73) scores, (2.23 ± 0.57) scores vs. (1.13 ± 0.73) scores; and the BCS was significantly lower than that in non smoking group:(1.80 ± 0.61) scores vs. (2.90 ± 0.99) scores, (1.90 ± 0.31) scores vs. (2.87 ± 1.00) scores, (2.10 ± 0.31) scores vs. (2.47 ± 0.82) scores, (2.17 ± 0.38) scores vs. (2.47 ± 0.82) scores, and there were statistical differences (P<0.05). The VAS immediately after entering PACU in patients of FTND ≥ 6 scores was significantly higher than that in patients of FTND<6 scores:(3.6 ± 0.7) scores vs. (2.5 ± 0.7) scores, the BCS was significantly lower than that in patients of FTND <6 scores:(1.5 ± 0.5) scores vs. (2.0 ± 0.6) scores, and there were statistical differences (P<0.05). The VAS immediately after entering PACU in patients of non- quit smoking was significantly higher than that in patients of quit smoking: (3.4 ± 0.7) scores vs. (2.4 ± 0.6) scores, and there were statistical differences (P<0.05). Conclusions Smokers have more severe postoperative pain in laparoscopic cholecystectomy and higher postoperative opioid requirement than nonsmokers. Quit smoking before surgery will reduce postoperative pain and related complications. Appropriate increase of analgesic drugs can prevent postoperative pain in patients with smoking.

2.
Chinese Journal of Anesthesiology ; (12): 69-71, 2013.
Article in Chinese | WPRIM | ID: wpr-431200

ABSTRACT

Objective To evaluate the changes in the expression of Nogo-A protein in the dorsal root ganglion (DRG) and spinal dorsal horn in a rat model of inflammatory pain.Methods One hundred and twenty male Sprague-Dawley rats,weighing 250-300 g,were randomly divided into 2 groups (n =60 each):control group (group C) and formalin group (group F).The inflammatory pain was induced by injection of 3% formalin 100 μl into the plantar surface of left hindpaw in group F.The equal volume of normal saline was given instead of formalin in group C.Mechanical withdrawal threshold to yon Frey filament stimulation was measured at 1 h and 1,2,3 and 7 days after injection.Twelve rats in each group were chosen at each time point and sacrificed.The L5 DRG and L4,5 segment of spinal cord on the operated side were removed for determination of Nogo-A protein expression by immunofluorescence and Western blot.Remlts Compared with group C,the mechanical withdrawal threshold was significantly decreased at 1 h,1,2,3 and 7 days after injection,and the expression of Nogo-A protein in the DRG and L4,5 segment of spinal cord was up-regulated at 1 h and 2,3 and 7 days after injection in group F (P <0.05).Conclusion Up-regulation of Nogo-A protein in the DRG and spinal dorsal horn may play an important role in the development of formalin-induced inflammatory pain in rats.

3.
Chinese Journal of Anesthesiology ; (12): 439-441, 2011.
Article in Chinese | WPRIM | ID: wpr-416853

ABSTRACT

Objective To investigate the changes in the expression of Nogo-A protein in the dorsal root ganglion (DRG) and spinal dorsal horn in a rat model of neuropathic pain (NP) .Methods Seventy-two male SD rats weighing 250-300 g were randomly divided into 3 groups ( n = 24 each) : control group (group C) , sham operation group (group S) and NP group. NP was induced by ligation and severance of tibial and common fibular nerves according to the technique described by Isabelle et al. The mechanical withdrawal threshold (MWT) to von Frey filament stimulation was measured at 1, 7, 14 and 21 days after ligation. Six rats in each group were randomly selected at each time point and sacrificed (3 for determination of Nogo-A protein expression by immunofluorescence, 3 for determination of Nogo-A protein expression by Western blot) . The L5 DRG and L4,5 segment of spinal cord on the injured side were removed for determination of Nogo-A protein expression by immunofluorescence and Western blot. Results Compared with the groups C and S, MWT was significantly decreased at 7, 14 and 21 days after ligation, the expression of Nogo-A protein in the DRG was down-regulated at 7 and 14 days after ligation and the expression of Nogo-A protein in the spinal dorsal horn was up-regulated at 14 and 21 days after ligation ( P <0.05) .Conclusion The Nogo-A protein in the DRG and spinal dorsal horn may play an important role in peripheral nerve injury-induced NP in rats.

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