Reflex Sympathetic Dystrophy Differential Diagnoses
- Author: Don R Revis, Jr, MD; Chief Editor: Herbert S Diamond, MD more...
The International Association for the Study of Pain (IASP) has developed criteria for the clinical diagnosis of complex regional pain syndrome and continues to update these criteria. Current IASP criteria are presented below.
A clinical diagnosis can be made when the following criteria are met:
- Continuing pain that is disproportionate to any inciting event
- At least one symptom reported in at least three of the following categories:
- Sensory: Hyperesthesia or allodynia
- Vasomotor: Temperature asymmetry, skin color changes, skin color asymmetry
- Sudomotor/edema: Edema, sweating changes, or sweating asymmetry
- Motor/trophic: Decreased range of motion, motor dysfunction (eg, weakness, tremor, dystonia), or trophic changes (eg, hair, nail, skin)
- At least one sign at time of evaluation in at least two of the following categories:
- Sensory: Evidence of hyperalgesia (to pinprick), allodynia (to light touch, temperature sensation, deep somatic pressure, or joint movement)
- Vasomotor: Evidence of temperature asymmetry (>1° C), skin color changes or asymmetry
- Sudomotor/edema: Evidence of edema, sweating changes, or sweating asymmetry
- Motor/trophic: Evidence of decreased range of motion, motor dysfunction (eg, weakness, tremor, dystonia), or trophic changes (eg, hair, nail, skin)
- Absence of another diagnosis that better explains the signs and symptoms
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