Altered perceptions after upper and lower extremity blocks: An initial investigation

Regional Anesthesia and Pain Medicine | September 1, 2003| | Copyright

Background and Objectives: Nerve blocks frequently produce unusual altered perceptions in the extremities. We examined perceptual changes experienced after peripheral blocks.

Methods: Fifty consecutive patients having an upper or lower extremity block for surgery participated in this prospective study. Patients were divided into 2 groups: upper extremity (n = 20) and lower extremity (n = 30). Each group was asked a list of questions about perceptions of limb sensation, length, weight, and location and given a detailed 2-point discrimination test over the V^sup 1^-V^sup 3^ divisions of the ...

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