Chronic Regional Pain Syndrome (CRPS) is a chronic disabling disease. Patients present a variable picture associating pain localized to an articular or peri-articular region, motor and vasomotor disorders and trophic disorders.

Its pathophysiology, still poorly understood to this day, results from local inflammatory phenomena complicated by peripheral sensitization and central spinal and cerebral sensitization.

The diagnosis is made difficult by the fluctuating nature of the symptoms and the absence of specific complementary examination.

The treatment of CRPS is symptomatic and requires multidisciplinary care. CRPS is responsible for an alteration in the patient's quality of life. This pathology has a global impact because it affects not only the biomedical sphere but also the socio-family, professional and psychological spheres.

The investigators hypothesize that multidisciplinary intervention in the Day Hospital would improve the quality of life of patients with CRPS. The investigators also think that the passage in Day Hospital would make it possible to improve the pains, the functionality of the affected limb as well as the satisfaction of the patients.

Inclusion Criteria:

• Patient volunteers over 18 years of age
• Diagnosis of CRPS according to the Budapest criteria
• Referred to pain assessment and treatment center

Exclusion Criteria:

• Patients unable to express their wishes or understand the protocol
• Diagnosis of CRPS not meeting Budapest criteria
• Patients previously seen at pain assessment and treatment center for the care of CRPS

Patients with Chronic Regional Pain Syndrome referred to the Chronic Pain Facility for the first time