How is complex regional pain syndrome diagnosed

How is complex regional pain syndrome diagnosed?

The diagnosis of CRPS is made clinically. The Budapest diagnostic criteria for CRPS require the following:

  • • Continuous pain which is disproportionate to an inciting event
  • • Symptoms in at least three of four domains (sensory, vasomotor, sudomotor/edema, and motor/trophic). Specific aspects of each domain are described in the criteria.
  • • Signs in at least two of four domains (sensory, vasomotor, sudomotor/edema, and motor/trophic). Specific aspects of each domain are described in the criteria.
  • • No other diagnosis that better explains the signs and symptoms.

Although there is no specific diagnostic test for CRPS, in certain circumstances, investigations such as QST, autonomic testing, x-rays, bone scintigraphy, and Doppler flow studies can be performed to interrogate for findings that have been described in people with CRPS.

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