Vestibular Function and Clinical Presentation of Dizziness: Are They Similar in Patients With Different Types of Migraine?

OBJECTIVE

To compare the vestibular function and clinical aspects (vestibular and migraine symptoms) of patients divided into three groups-migraine without aura, migraine with aura, and chronic migraine-and a control group by using electronystagmography and a design questionnaire.

STUDY

DESIGN

Case-control study.

SETTING

Tertiary referral center.

PATIENTS: Women aged between 18 and 55 years diagnosed with migraine with aura, migraine without aura, or chronic migraine according to the International Classification of Headache Disorders ICHD-third edition; diagnosis was made by a headache specialist. The control group consisted of patients' family members and hospital employees without a personal history of headache.

MAIN OUTCOME MEASURES: Application of a questionnaire regarding vestibular symptoms and their relation to migraine aspects. Assessment of the vestibular function by electronystagmography.

RESULTS

This study evaluated 120 female patients. Dizziness was the most prevalent vestibular symptom in all the migraine groups, with higher prevalence in the episodic migraine with aura and chronic migraine groups. Phonophobia and photophobia during vestibular symptoms also had greater prevalence in the latter groups. Electronystagmography tests did not reveal differences among the groups, but clinical stratification showed that tests with mixed etiology abnormalities were more prevalent in the episodic migraine with aura and chronic migraine groups.

CONCLUSION

The prevalence of vestibular symptoms in the migraine groups and the etiology of vestibular impairment highlight that migraine affects the vestibular system. Our findings suggest that symptom progression and vestibular impact are related to migraine chronicity and presence of aura.