Effect of Ultrasound-guided Nerve Block on Hemodynamics in Patients Undergoing Stable Knee Arthroplasty
Objective:To explore the effect of ultrasound-guided nerve block on hemodynamics in patients undergoing stable knee arthroplasty.Methods:A total of 76 patients who received treatment in our hospital from Jan-uary 2020 to June 2023 were selected,and were divided into the control group and the observation group according to different analgesia methods,with 38 cases in each group.Patients in the control group received routine self-controlled intravenous analgesia,while patients in the observation group received ultrasound-guided nerve block.Numeric rating scale(NRS)scores,hemodynamic levels[heart rate(HR),mean arterial pressure(MAP)]and adverse reactions at differ-ent time points after surgery(immediately after surgery,4 h after surgery and 12 h after surgery)were compared between the two groups.Results:Immediately after surgery,the comparison of NRS scores between the two groups was not sta-tistically significant(P>0.05).The NRS scores in the observation group were lower than those in the control group at 4 h and 12 h postoperatively respectively,with statistical significance(P<0.05);Immediately after operation,there was no significant difference in hemodynamics between the two groups(P>0.05),but MAP and HR decreased at 4 h and 12 h postoperatively,which were higher in the observation group than those in the control group with statistical significance(P<0.05);The incidence of adverse reactions during analgesia in the observation group was lower than that in the control group(P<0.05).Conclusion:The application of ultrasound-guided nerve block in postoperative analgesia for patients undergoing knee arthroplasty can reduce the degree of pain,stabilize hemodynamics and decrease the incidence of ad-verse reactions.
knee arthroplastyhemodynamicsnerve blockultrasound guidancestress responsedegree of pain
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