How much do you think the brachial plexus anesthesia may injure the nerve? Please consult me

With nerve block anesthesia, the incidence of nerve injury is very low <2%, and permanent nerve injury is even less <5/10000. Different people have different statistics. In general, it's very low. Such as heterosensation, excessive dosage, excessive concentration, abnormal coagulation function, rough manipulation will increase the incidence of injury. In fact, in the process of puncture, it is not necessary to pursue strange sensation and disappointment. According to the patient's weight, roughly judge the depth of injection, in the appropriate depth of injection, can also achieve a satisfactory anesthetic effect. With the use of nerve stimulator and ultrasound guidance, the incidence of nerve injury will be less. However, ultrasound guidance is not yet widely available, and those who have neurostimulators may not be willing to use them.

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