Anesthesia effect of ropivacaine and bupivacaine on patients undergoing axillary brachial plexus block guided by ultrasound

Abstract

Objective To investigate the anesthetic effect of ropivacaine and bupivacaine on patients undergoing axillary plexus block guided by ultrasound. Methods A retrospective study was performed on 120 cases of patients who were admitted in the Anesthesiology of Datong Fourth People′s Hospital, and underwent upper limb surgery from January 2017 to December 2018.There were 75 males and 45 females, aged(46.57±4.58)years old, ranging 27 to 66 years old.According to the order of admission, the patients were divided into the ropivacaine group and bupivacaine group, with 60 cases in each group.The two groups of patients underwent axillary brachial plexus nerve anesthesia under ultrasound guidance.The ropivacaine group of patients received ropivacaine, the bupivacaine group of patients were given bupivacaine.The indexes of sensory block(onset time, duration, complete failure time)and motor block(onset time, onset time, duration)were compared between the two groups.The Ramsay sedation score and visual analogue scale(VAS)at 2, 6 and 8 hours after operation were compared, and the perioperative complications were recorded. Results There was no significant difference in onset time, duration of sensory block and onset time of motor block between the two groups(P>0.05). In the ropivacaine group, the total failure time of sensory block[(465.28±42.25)minutes], the duration of motor block[(268.59±39.25)minutes]was longer than that of the bupivacaine group[(356.58±43.69)minutes, (206.51±28.59)minutes], and the exercise generation time[(12.36±2.13)minutes]was shorter than that of the bupivacaine group[(18.59±2.69)minutes], with statistically significant differences(P 0.05). VAS at 2 hours[(1.26±0.26)minutes], 6 hours[(1.58±0.52)minutes]and 8 hours[(2.11±0.71)minutes]were lower than those in the bupivacaine group[(1.68±0.34)minutes, (2.31±0.71)minutes and(2.43±0.56)minutes], with statistically significant differences(P 0.05). Conclusion Ropivacaine is more effective and sedative in axillary brachial plexus block anesthesia under ultrasound guidance.It is preferable to use bupivacaine in clinical anesthesia, but the time of motor block is longer.Bupivacaine should be considered if patients need early limb movement. Key words: Ropivacaine; Bupivacaine; Axillary brachial plexus block; Ramsay sedation score; Visual analogue scale