What aspect of nerve function is assessed in patients with complex regional pain syndrome using nerve conduction studies?

In patients with complex regional pain syndrome (CRPS), nerve conduction studies are primarily focused on evaluating the response of peripheral nerves, particularly to assess sensations such as allodynia (pain from stimuli that do not normally provoke pain) and hyperalgesia (increased sensitivity to painful stimuli). This aspect is crucial because CRPS is often characterized by alterations in pain perception and sensory processing, making it essential to understand how the nerves are responding under these conditions.

By assessing the function of peripheral nerves in relation to pain responses, clinicians can gain insights into the underlying mechanisms of CRPS. These findings can inform treatment strategies and help in the overall management of the condition. The other options do not directly address the specific sensory alterations that are central to the diagnosis and understanding of CRPS, making the assessment of nerve response to allodynia and hyperalgesia the most relevant aspect studied in this context.