Diagnostic Peripheral Nerve Block Resulting in Compartment Syndrome

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Abstract
A hemiplegic patient with severe upper extremity spasticity 2 years after a cerebrovascular accident received a diagnostic median nerve block below the elbow with bupivacaine. He had been placed on Coumadin as prophylaxis for cerebrovascular arteriosclerotic disease, and prothrombin time was kept at twice the control value. Less than 48 hours after the procedure, a compartment syndrome developed in the volar forearm. Compartment syndrome has not previously been reported as a complication resulting from a nerve block procedure. We conclude that (1) compartment syndrome may develop after a peripheral nerve block procedure for spasticity, (2) prophylactic anticoagulation may increase the risk for hemorrhagic events resulting from percutaneous injection and (3) early recognition is essential and appropriate decompressive fasciotomy may be indicated if a compartment syndrome develops after a nerve block procedure.

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