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Table 3 Budapest clinical diagnostic criteria for CRPS [53]

From: Pediatric complex regional pain syndrome: a review

All the following criteria must be met:
1) Continuing pain, which is disproportionate to any inciting event.
2) Must report at least one symptom in three of the four following categories:
 • Sensory: Reports of hyperesthesia and/or allodynia.
 • Vasomotor: Reports of temperature asymmetry and/or skin color changes and/or skin color asymmetry.
 • Sudomotor/Edema: Reports of edema and/or sweating changes and/or sweating asymmetry.
 • Motor/Trophic: Reports of decreased range of motion and/or motor dysfunction (weakness, tremor, dystonia) and/or trophic changes (hair, nail, skin).
3) Must display at least one sign at time of evaluation in two or more of the following categories:
 • Sensory: Evidence of hyperalgesia (to pinprick) and/or allodynia (to light touch and/or temperature sensation and/or deep somatic pressure and/or joint movement).
 • Vasomotor: Evidence of temperature asymmetry (>1 °C) and/or skin color changes and/or asymmetry.
 • Sudomotor/Edema: Evidence of edema and/or sweating changes and/or sweating asymmetry.
 • Motor/Trophic: Evidence of decreased range of motion and/or motor dysfunction (weakness, tremor, dystonia) and/or trophic changes (hair, nail, skin).
4) There is no other diagnosis that better explains the signs and symptoms.