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|Title:||Pathophysiology and Etiology of Nerve Injury Following Peripheral Nerve Blockade.|
|ANZCA/FPM Author:||Barrington, MJ|
|Keywords:||Autonomic Nerve Block|
Peripheral Nerve Injuries
|Abstract:||This review synthesizes anatomical, anesthetic, surgical, and patient factors that may contribute to neurologic complications associated with peripheral nerve blockade. Peripheral nerves have anatomical features unique to a given location that may influence risk of injury. Peripheral nerve blockade-related peripheral nerve injury (PNI) is most severe with intrafascicular injection. Surgery and its associated requirements such as positioning and tourniquet have specific risks. Patients with preexisting neuropathy may be at an increased risk of postoperative neurologic dysfunction. Distinguishing potential causes of PNI require clinical assessment and investigation; a definitive diagnosis, however, is not always possible. Fortunately, most postoperative neurologic dysfunction appears to resolve with time, and the incidence of serious long-term nerve injury directly attributable to peripheral nerve blockade is relatively uncommon. Nonetheless, despite the use of ultrasound guidance, the risk of block-related PNI remains unchanged.|
|Journal Title:||Regional anesthesia and pain medicine|
|Affiliates:||Australian and New Zealand College of Anaesthetists|
|Appears in Collections:||Scholarly and Clinical|
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