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| Effect observation of continuous femoral nerve block guided by nerve stimulator for postoperative analgesia of knee joint |
| WANGWei-ku LYU Zhen-jiang |
| Department of Anesthesiology,Central Hospital of Development Zone in Yingkou City,Liaoning Province,Yingkou 115007,China |
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Abstract Objective To observe the effect of continuous femoral nerve block guided by nerve stimulators for postoperative analgesia in knee joints.Methods A total of 100 patients performed with postoperative analgesia for the lower extremities from February to December in 2017 were selected.They were equally divided into two groups by a random number table method,50 cases in each group.In the reference group,continuous intravenous analgesia was used,while in the observation group,continuous femoral nerve block guided by nerve stimulator was adopted.The clinical indicators,visual analogue scale (VAS),Ramsay sedation score,and incidence of adverse reactions in the two groups were compared.Results There was no significant difference in heart rate(HR)or oxyhemoglobin saturation(SpO2)between the two groups(P＞0.05）.The systolic blood pressure (SBP)and diastolic blood pressure (DBP)were higher in the reference group than in the observation group and the difference was statistically significant(P＜0.05）.The VAS scores before treatment in both groups were not displayed statistical significance between the two groups (P＞0.05）.The VASscores 6,12,36 and 48 h after treatment in the observation group were all lower than those in the reference group and the difference was statistically significant(P＜0.05）.There was no significant difference in VAS scores before and after treatment in the observation group(P＞0.05）.The scores of the reference group at different timepoints after treatment were all higher compared with those before treatment and the difference was statistically significant(P＜0.05）.Ramsay sedation scores before treatment in both groups were not displayed statistical significance (P＞0.05）.The Ramsay sedation scores 6,12,36 and 48 h after treatment in the observation group were all lower than those in the reference group and the difference was statistically significant(P＜0.05）.What′s more,the Ramsay sedation scores at different timepoints after treatment in the two groups were higher compared with those before treatment and the difference was statistically significant(P＜0.05）.The incidence of adverse reactions in the observation group was lower than that in the reference group,and the difference was statistically significant(P＜0.05）.Conclusion The continuous femoral nerve block guided by nerve stimulator is effective for postoperative analgesia of knee joint.It is safe and can be widely used and promoted in clinical practice.
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