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Complications of Neuraxial and Peripheral Nerve Blocks

Complications associated with peripheral nerve blockade (PNBs) are relatively rare. Regardless, the neurologic consequences of complications with PNBs remain a significant source of concern for both the patient and the anesthesiologist. Auroy and colleagues1 prospectively evaluated serious complications after 21, 278 PNBs in a 5-month period in France. Using a 95% confidence interval, they estimated the po¬tential for serious complications per 10, 000 PNBs to be 0 to 2.6 deaths, 0.3 to 4.1 cardiac arrests, 0.5 to 4.8 neurologic injuries, and 3.9 to 11.2 seizures. Most complications are related to the use of upper extremity blocks and there is a paucity of reports of complications spe¬cifically associated with lower-extremity PNBs.

neuraxial block ; periheral nerve blocks ; complications

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