| Objective:To evaluate the effects of biofeedback electrical stimulation combined with intravenous self-administered analgesia therapy on analgesia effect,analgesic drug use,early postoperative activity and intervention safety in patients after cesarean delivery.Methods:This was a randomized controlled study.From May to October 2022,140patients in the obstetrics department of a tertiary care hospital in Nanchang were selected as the study subjects after cesarean section in the lower uterine segment under combined lumbar and rigid anesthesia.They were divided into the control and test groups using the random number table method.The control group used intravenous self-administered analgesia in the postoperative period and the test group added biofeedback electrical stimulation therapy to the control group.Compare the Visual Analogue Scale(VAS)at 25 time points(when returning to the ward,every 4h to 96h after the operation),the amount of the analgesic pump and the number of analgesic pump presses 24h after surgery,time of the first ambulation after surgery,the length of the first walking activity and time of walking activities within 24h after surgery;The safety of the intervention method was assessed using the incidence of bleeding and adverse effects at 24h postoperatively.All data were processed using SPSS 25.0 software,and the baseline differences between the two groups were compared using two independent samples t-test and Wilcoxon rank sum test,and the analgesic effect of the intervention method was assessed using repeated measures ANOVA.Results:(1)Baseline data comparison.The differences in baseline data(age,education,operation period,number of births,number of cesarean deliveries,Body Mass Index,gestational weeks,and weight of newborns delivered)between the intervention and control groups were not statistically significant(P>0.05).(2)Comparison of the VAS scores between the two groups.Group main effect of VAS score was significant(F=99.289,P<0.05),time main effect of VAS score was significant(F=968.039,P<0.05),and the interaction between time and group of VAS score was significant(F=9.004,P<0.05).The results of the separate effect of group showed no statistically significant difference between the VAS scores of the test and control groups at the time of return to the ward,4h,12h and 16h after surgery(all P>0.05).There was statistically significant differences in VAS scores at 8h,20h and at subsequent time points(all P<0.05).(3)Comparison of analgesic drug use between the two groups.The number of self-administered analgesic pump presses was less in the test group than in the control group,and the difference was statistically significant(Z=6.865,P<0.05);the amount of analgesic drug remaining in the test group[(8.58±4.76)mL]was more than that in the control group[(3.59±4.34)mL],and the difference was statistically significant(t=6.47,P<0.05).(4)Comparison of the postoperative activity status between the two groups.The time of first out-of-bed activity in the test group[(17.54±2.17)h]was earlier than that in the control group[(19.45±3.57)h],and the difference was statistically significant(t=5.003,P<0.01);the length of first out-of-bed activity in the test group[(11.39±5.63)min]was longer than that in the control group[(8.79±5.03)min],and the difference was statistically significant(t=2.882,P<0.01);the number of out-of-bed activities within 24h after surgery was more in the test group[(3.61±1.42)times]than in the control group[(2.38±1.49)times],and the difference was statistically significant(t=3.791,P<0.01).(5)Comparison of bleeding and adverse reactions at 24h after surgery between the two groups.The amount of postpartum bleeding at 24h after surgery was less in the test group[(65.48±16.67)mL]than in the control group[(83.30±45.48)mL],and the difference was statistically significant(t=3.094,P<0.01).The incidence of adverse reactions was 15.5%in the test group and 13.0%in the control group,and the difference between the two groups was not statistically significant(χ~2=0.171,P>0.05).Conclusion:Biofeedback electrical stimulation combined with intravenous self-administered analgesia can effectively reduce the level of postoperative pain after cesarean section,reduce the dose of analgesic drugs,improve the postoperative status of patients,promote patients to get out of bed early and increase the number of early out-of-bed activities and the length of the first activity,reduce postoperative bleeding,with the characteristics of high safety,rapid onset of action,stability and durability,and has good prospects for clinical application and promotion. |
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