About the problem of intraneural introduction of anesthetic at regional blocks

Research objective - to raise safety of conduction anesthesia of a humeral plexus by depression of cases of intraneural introduction of anesthetic on the basis of application of ultrasonic scanning during performance of blockade. Materials and methods. 137 blockade of a humeral plexus by axillary access are executed. Depending on a method of identification of nerves patients have been distributed on two groups: 1) identification of nerves by means of ultrasonic scanning (n=68); 2) a combination нейростимуляции and ultrasonic scanning for identification of nerves (n=69). Results. At a finding of a section of a needle in immediate proximity from a nerve (according to ultrasonic scanning) peripheral motor reaction was absent in 63,8% of cases. Intraneural introduction of a solution of local anesthetic was observed more often (p<0,05) at identification нейростимулятором (69,6%), than at ultrasonic identification of nerves (17,6%). The conclusion. Diffusion of local anesthetic observed by means of ultrasonic scanning confirms an exact site of an end of a needle that allows to avoid its intraneural introduction.

ultrasonic visualization of nerves, a humeral plexus, intraneural introduction, complication, axillary access