Application Effect of Dexmedetomidine Combined with Brachial Plexus Nerve Block Anesthesia in Patients Undergoing Upper Limb Fracture Surgery
Objective To explore the application effect of dexmedetomidine combined with brachial plexus nerve block anesthesia in patients with upper limb fracture surgery.Methods 86 patients undergoing upper limb fracture surgery were randomly divided into basic group(43 cases,brachial plexus nerve block anesthesia)and combined group(43 cases,dexmedetomidine combined with brachial plexus nerve block anesthesia).The MAP,HR,anesthetic effect and anesthetic adverse reactions of the two groups were compared.Results Before anesthesia and 1 min after anesthesia,no statistical difference was found in the MAP and HR between the two groups(P>0.05).30 min after anesthesia and at the end of operation,the MAP of the combined group was higher than that of the basic group,and the HR was lower than that of the basic group(P<0.05).The onset time of sensory block and motor block in the combined group were shorter than those in the basic group,and the maintenance time of sensory block and motor block were longer than those in the basic group(P<0.05).The incidence of hypotension in the combined group was 2.33%,lower than 18.60%in the basic group(P<0.05).Conclusions Dexmedetomidine combined with brachial plexus nerve block anesthesia can significantly maintain hemodynamic stability,improve the anesthetic effect and reduce the incidence of hypotension in patients undergoing upper limb fracture surgery.