Clinical Effect of Brachial Plexus Block Anesthesia Guided by B-ultrasound
Objective To explore the effect of brachial plexus block anesthesia guided by B-ultrasound.Methods A total of 100 patients undergoing anesthesia for upper limb fracture surgery admitted to Chengwu County People's Hos-pital from July 2021 to July 2023 were randomly selected as the study objects,and they were divided into the refer-ence group and the study group by random number table method,with 50 cases in each group.The reference group re-ceived brachial plexus block anesthesia,and the study group received brachial plexus block anesthesia guided by B-ultrasound.The clinical Ramsay Sedation Scale(Ramsay),onset time of block,complete block time,nerve block de-gree,analgesic maintenance time,block resolution time,circulatory system function and the occurrence of adverse re-actions were compared between the two groups.Results Ramsay score,oxygen saturation(SpO2)level and analgesia maintenance time in study group were better than those in reference group,and the differences were statistically sig-nificant(all P<0.05).The onset time of block,complete block time,diastolic blood pressure(DBP),heart rate(HR)and block resolution time of the study group were better than those of the reference group,and the differences were statistically significant(all P<0.05).The degree of nerve block in grade Ⅰ was higher than that in the reference group,and the degree of nerve block in grade Ⅱ and grade Ⅲ was lower than that in the reference group,and the difference was statistically significant(P<0.05).The total incidence of adverse reactions in the study group was 2.00%,lower than that in the reference group(16.00%),and the difference was statistically significant(χ2=4.396,P<0.05).Conclu-sion The application of brachial plexus block anesthesia guided by B-ultrasound in surgery has a high degree of accu-racy,safety and controllability,which provides doctors with more reliable intraoperative guidance and reduces the risk of radiation exposure.
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