Self and Body Perception in Otoneurological Disorders: Translation and Validation of Measurement Scales (PERSOCOR)

Hôpital Européen Marseille

Status

Completed

Conditions

Patients Presenting or Having Experienced Dizziness and / or Balance Disorders

Patients With Acute or Chronic Otoneurological Disorders

Treatments

Other: Questionnaire Measures

Study type

Interventional

Funder types

Other

Identifiers

NCT05249283

21-44

Details and patient eligibility

About

Depersonalization-derealization (DD) disorders are a clinical phenomenon characterized by feeling disconnected or detached from one's self. Individuals may report feeling as if they are an outside observer of their own thoughts or body, and often report feeling a loss of control over their thoughts or actions.

Several scales have been developed to measure DD, and the Cambridge Depersonalization Scale (CDS) appears to be the most relevant and consistent to characterize the clinical symptoms of these disorders as well as their duration and frequency. This scale, originally written in English, must be translated and validated according to standardized methods that include testing steps patients with dizziness and in individuals with no vestibular disorder.

Persistent postural-perceptual dizziness (PPPD) is a chronic, persistent vestibular syndrome generally preceded by acute vestibular disorders. The main symptoms are rotational dizziness, unsteadiness and / or non-rotating dizziness that are exacerbated by upright posture, walking, active or passive movement, and exposure to moving visual stimuli or complex visual patterns. To help diagnose this syndrome, a questionnaire was developed in Japan in 2019, the Niigata questionnaire, however no French version has yet been validated. Similarly, this scale needs to be validated in patient with PPPD and in control populations.

The main objective of this study is to validate the French translation of these two scales, the CDS questionnaire and the Niigata PPPD questionnaire, according to standard methods (forward translation, back translation, consensus).

Enrollment

612 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

For patient:

Age ≥ 18 years
Patient with acute or chronic otoneurological disorders
Patient having or having experienced dizziness and / or balance disorders
Patient with PPPD
Fluency in French
Having given free and informed written consent
Being affiliated with or benefiting from social security

For control subjects:

Age ≥ 18 years
Fluency in French
Having given free and informed written consent
Being affiliated with or benefiting from social security.

Exclusion criteria

For patient:

-Past or present psychiatric and neurological disease (other than otoneurological or PPPD, as declared by the participant)

For control subjects:

-Past or present psychiatric and neurological disease (as declared by the participant) and vestibular and/or auditory system disorders (as declared by the participant)

For all participants:

Persons still in a period of exclusion from another study and persons simultaneously participating in another study
Subject to a measure for the protection of justice