Study of Connected Soles With Pressure Sensors in the Evaluation of Gait Disorders in Patients With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP).

Patients with Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) present multifactorial gait disorders (motor deficit, fatigability, sensory and proprioceptive disorders with ataxia). Gait disorders are the main cause of disability in these patients. Assessment of gait disorders is a major component of therapeutic management, but evaluation is sometimes difficult due to the fluctuating nature of the symptoms. For many patients, there is indeed a fluctuating nature of gait disorders depending on the administration of treatments (reappearance of symptoms between two immunoglobulin -IgIV- infusions) conditioning the interval of two infusions. In the context of a shortage of IgIV and given the high cost of this treatment, it is of major importance to adapt the treatment as closely as possible to the needs of the patients.

Objective evaluation methods of gait disorders used in current practice have several drawbacks: chronophagy, operator-dependency, heterogeneity of data, implementation in hospital. Moreover, these methods often lack sensitivity to detect some changes. Portable evaluation methods with pressure sensors (including FEETME® connected soles) have been developed and studied in several neurological pathologies. These systems allow one-off evaluations with standardised tests but also continuous monitoring in an ecological environmentBy comparing several walk parameters with a reference method (GAITRITE® walkway) and an innovative one (FEETME® connected soles) , we want to validate the use of the connected soles in gait dirorders evaluation for CIDP patients.