Electrophysiologic effect of injectates on peripheral nerve stimulation.

  title={Electrophysiologic effect of injectates on peripheral nerve stimulation.},
  author={Ban C H Tsui and Alese M Wagner and Brendan T Finucane},
  journal={Regional anesthesia and pain medicine},
  volume={29 3},
BACKGROUND AND OBJECTIVES A small volume of local anesthetic or normal saline abolishes the muscle twitch induced by a 1ow current (0.5 mA) during electrolocation. This study examines the hypothesis that the mechanism of this phenomenon is primarily the electrophysiologic effect of the injectate on the electrical current density at the needle tip. METHODS Five pigs were studied. An insulated Tuohy needle was inserted in each pig toward the left and right brachial plexuses and the left and… CONTINUE READING