“…In general, CRPS is triggered by a physical injury such as: fractures, torsions and surgeries. With regard to diagnosis, the International Association for the Study of Pain (IASP) has published a consensus, in 1994, where the following criteria were defined: a) continuous pain disproportional to the initial event; b) presence of initial injury may be disregarded; c) signs and symptoms shall be divided in different groups; d) patients must have at least two of the following symptoms: sensory such as hyperesthesia, vasomotor such as change in temperature and color, sudomotor such as edema and sweating, and motor such as decreased motricity, weakness, shivering, functional limb amputation, or all; e) presence of at least two of the following signs: vasomotor, sudomotor and motor 2,3 . Treatment has to be started early to allow patients' recovery, however in some situations the approach is ineffective and unsuccessful.…”