Dizziness,Vertigo
Conditions
Interventions
Optokinetic stimuli (alternating black and white stripes presented in front of the eyes in a sitting position are accelerated at 1 degree/sec2 to the right or left and the participants are instructed
Sponsors
University of Toyama
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Non-dizziness subject group: adult subjects aged 18 years and over with no history of ear disease (otitis media, perforated tympanic membrane, etc.), hearing loss, or dizziness/imbalance disorder. Dizziness patient group: Dizziness patients who attended the Advanced Vertigo Centre of Toyama University Hospital with a chief complaint of vertigo or dizziness and were diagnosed with peripheral vestibular disorder or central disequilibrium disorder (or suspected).
Exclusion criteria
Exclusion criteria: 1 Persons with complications that may seriously interfere with the conduct of the study (interstitial pneumonia, pulmonary fibrosis, severe emphysema, uncontrolled diabetes or hypertension, history of myocardial infarction within 3 months, uncontrolled angina pectoris or irregular heartbeat, etc., heart failure, liver failure, renal failure, peptic ulcer, etc.) 2 Women who are pregnant, lactating or intend to become pregnant during the study period. 3 Those with a history of hospital visits or medication for psychiatric disorders. 4 Any other person who is judged by the principal investigator to be inappropriate as a subject for this study, including a.Persons who are judged to have poor comprehension of the instructions and requests of the researchers b.Persons who are judged to be uncooperative in responding to the instructions and requests of the researchers c.Others
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| (i) Optokinetic nystagmus test: maximum slow phase velocity of nystagmus during optokinetic stimulation. (ii) Caloric test: maximum slow phase velocity of nystagmus and rate of fixation suppression during four stimulation conditions (right ear cold stimulation, right ear warm stimulation, left ear cold stimulation and left ear warm stimulation). | — |
Countries
Japan
Contacts
Public ContactHiromasa Takakura
Toyama University Hospital Department of Otolrhinolaryngology, Head and Neck surgery
Outcome results
None listed