Nerve localization techniques for peripheral nerve block and possible future directions
O'Donnell, Brian D.
Moore, Eric J.
John Wiley & Sons Ltd
Ultrasound guidance is now a standard nerve localization technique for peripheral nerve block (PNB). Ultrasonography allows simultaneous visualization of the target nerve, needle, local anesthetic injectate and surrounding anatomical structures. Accurate deposition of local anesthetic next to the nerve is essential to the success of the nerve block procedure. Unfortunately, due to limitations in the visibility of both needle tip and nerve surface, the precise relationship between needle tip and target nerve is unknown at the moment of injection. Importantly, nerve injury may result both from an inappropriately placed needle tip and inappropriately placed local anesthetic. The relationship between the block needle tip and target nerve is of paramount importance to the safe conduct of peripheral nerve block. This review summarizes the evolution of nerve localization in regional anesthesia, characterizes a problem faced by clinicians in performing ultrasound guided nerve block and explores the potential technological solutions to this problem.
Nerve block , Peripheral nerve , Nerve localization
HELEN, L., O'DONNELL, B. D. & MOORE, E. 2015. Nerve localization techniques for peripheral nerve block and possible future directions. Acta Anaesthesiologica Scandinavica, 59(8), 962-974. doi:10.1111/aas.12544
© 2015 The Acta Anaesthesiologica Scandinavica Foundation. This is the pre-peer reviewed version of the following article: HELEN, L., O'DONNELL, B. D. & MOORE, E. 2015. Nerve localization techniques for peripheral nerve block and possible future directions. Acta Anaesthesiologica Scandinavica, 59(8), 962-974, which has been published in final form at http://dx.doi.org/10.1111/aas.12544. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving