Application Of Local Anesthesia And Brachial Plexus Block In Canine Forelimb Surgery

The effects of intravenous local anesthesia and ultrasound guided brachial plexus block on anterior limb internal fixation in dogs were compared.From January 2017 to January 2018,30 dogs with anterior limb internal fixation were selected.Thirty dogs were randomly divided into intravenous intoxication group and ultrasound group.The dogs in both groups were anesthetized with propofol,isoflurane inhalation,local intravenous anesthesia and ultrasound guided brachial plexus block.The local anesthetics of the two groups were anesthetized with the dose of 4mg/kg,the physiological indexes of the dogs were monitored,the concentration of isoflurane was compared,and the anaesthesia effect and recovery quality were evaluated.The results were as follows: the body temperature of dogs in intravenous local anesthesia group was lower than that before anesthesia.The concentration of isoflurane maintenance anesthesia was higher than that of ultrasound group.The respiratory frequency was decreased in the ultrasonic group.There was no significant difference in anesthetic effect between the two groups(P > 0.05).The two anesthetic methods have good analgesic effect and good recovery quality.Combined with the above experimental conclusions,intravenous local anesthesia is easy to operate and low cost.Ultrasound-guided brachial plexus block is more widely used in the operation of canine forelimb than in the local use of vein,but the anesthesia is difficult and the cost of instrument is high.Therefore,intravenous anaesthesia is recommended for extremity operations,and ultrasound guided brachial plexus block is recommended for complex forelimb fractures.Both methods are worth popularizing in clinic.