Table 1.

Diagnostic criteria for CRPS I (Bruehl and Veldman)

IASP 1994 consensus criteria [51]	Bruehl's criteria [52]	Veldman’s criteria [53]
Criteria 2, 3 and 4 are necessary for a diagnosis of CRPS type 1. 1. Type 1 is a syndrome that develops after an initiating noxious event. 2. Spontaneous occurrence of pain in the absence of an external stimulus, allodynia (pain due to a mechanical or thermal stimulus that normally does not provoke pain), or hyperalgesia (exaggerated response to a stimulus that is normally painful) that is not limited to the territory of a single peripheral nerve, and is disproportionate to the inciting event. 3. There is or has been evidence of edema, skin blood flow abnormality, or abnormal sudomotor (sweating) activity in the region of the pain since the inciting event. 4. This diagnosis is excluded by the existence of conditions that would otherwise account for the degree of pain and dysfunction.	Continuing pain disproportionate to any inciting event. 1. Patient must report at least 1 symptom in each of the 4 following categories a) sensory: reports of hyperesthesia b) vasomotor: reports of temperature asymmetry or skin color changes or skin color asymmetry c) sudomotor/edema: reports of edema or sweating changes or sweating asymmetry d) motor/trophic: reports of decreased range of motion or motor dysfunction (weakness, tremor, dystonia) or trophic changes (hair, nail, skin) 2. Must display at least 1 sign in 2 or more of the following categories e) sensory: evidence of hyperalgesia (to pinprick) or allodynia (to light touch) f) vasomotor: evidence of temperature asymmetry or skin color changes or asymmetry g) sudomotor/edema: evidence of edema or sweating changes or sweating asymmetry h) motor/trophic: evidence of decreased range of motion or motor dysfunction (weakness, tremor, dystomia) or trophic changes (hair, nail, skin)	1. Presence of 4 out of 5 symptoms: a) Diffuse pain during exercise b) Temperature differences between affected and unaffected extremity c) Color differences between affected and unaffected extremity d) Volume differences between affected and unaffected extremity e) Limitations in active range of movement of the affected extremity 2. Occurrence or increase of symptoms during or after use 3. Symptoms in an area larger than the area of the primary injury