Objective To investigate the effect of dexmedetomidine combined with chloroprocaine on epidural anesthesia for cesarean section.Methods A total of 133 women who underwent epidural anesthesia for cesarean section at the Department of Anesthesiology,Jinhua People's Hospital between January 2020 and December 2022 were included in this prospective case-control study.These women were divided into a ropivacaine group(n=66)and a chloroprocaine group(n=67)using a random number table method.The ropivacaine group received epidural anesthesia with dexmedetomidine combined with ropivacaine,while the chloroprocaine group received epidural anesthesia with dexmedetomidine combined with chloroprocaine.The anesthesia effect(anesthesia onset time,anesthesia duration,peak effect time),changes in blood pressure(systolic blood pressure,diastolic blood pressure),adverse reactions(shivering,nausea and vomiting,urinary retention,skin itching,numbness of lower limbs),and satisfaction with muscle relaxation were observed in the two groups.Results The anesthesia onset time,anesthesia duration,and peak effect time in the chloroprocaine group were(6.91±1.54)minutes,(61.54±5.31)minutes,and(11.79±4.12)minutes,respectively,which were significantly shorter than those in the ropivacaine group[(9.65±1.92)minutes,(83.57±6.69)minutes,(18.32± 4.81)minutes,t=9.08,21.05,8.41,all P＜0.001).The systolic and diastolic blood pressure increased in both groups after 10 minutes of anesthesia and at the end of the procedure;however,the increments observed in the chloroprocaine group were relatively smaller.There were significant differences in systolic and diastolic blood pressure,measured at 10 minutes of anesthesia and at the end of the procedure,between the two groups(F=7.36,P＜0.001;F=5.12,P=0.001).There were significant differences in systolic and diastolic blood pressure between different time points(F=10.03,P＜0.001;F=6.72,P＜0.001).The group-by-time interaction effect on systolic and diastolic blood pressure was also highly significant(F=9.83,P＜0.001;F=8.01,P＜0.001).The chloroprocaine group exhibited a significantly lower incidence of adverse reactions compared with the ropivacaine group[4.48％(3/67)vs.15.15％(10/66),x2=4.29,P＜0.05).Additionally,the chloroprocaine group had a significantly higher satisfaction rate with muscle relaxation compared with the ropivacaine group[94.03％(63/66)vs.81.82％(54/66),Z=5.73,P＜0.05].Conclusion The combination of dexmedetomidine and chloroprocaine offers remarkable benefits in epidural anesthesia for cesarean sections.This combined approach not only enhances epidural anesthesia but also stabilizes the blood pressure of puerperants,reduces adverse reactions,and provides exceptional muscle relaxation.It deserves consideration for clinical application.
Cesarean sectionAnesthesia,epiduralBlood pressureMuscle relaxationDrug-related side effects and adverse reactionsDexmedetomidineChloroprocaineRopivacaine
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