الفهرس 
Introductions, Rationale and Aims of the WorkOnly 14 pages are availabe for public view
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Abstract
Migraine is a neurological disorder characterized by distinct periodic headaches with symptom-free intervals and usually associated with nausea, photophobia, phonophobia, and some vestibular and auditory symptoms. Typically, the headache is throbbing, usually relieved by sleep and may be preceded or accompanied by the visual symptoms, dizziness and vertigo .Auditory symptoms such as aural fullness, tinnitus and hearing loss are sometimes present.The epidemiology of migraine has been investigated by population-based studies in various countries on the basis of the International Classification of Headache Disorders (ICHD). Lifetime prevalence have been largely consistent across industrialized countries ranging from 13 % to 16 %.The association of migraine and vertigo has been well recognized for many years.It has been estimated that vertigo is three to four times more common in migraine sufferers than in controls. About 30-50 % of migraine patients also have dizziness. Intolerance to the motion of head and eyes is frequently reported by migraine patients. The migraine-related vestibular symptoms should not be simply regarded as migraine aura since those symptoms barely occur prior to the onset of headache.Vestibular migraine is a type of migraine that is characterized by prominent vestibular symptoms occurring in attacks. The ICHD assigned criteria to diagnose VM. Previous studies reported on the audio-vestibular findings in VM patients and in patients with the classic migraine without vertigo. Those studies revealed abnormalities within the peripheral and/or the central auditory and vestibular system. However; non of the these studies directly compared between VM and migraine without vertigo as regards the different audio-vestibular findings. It is not clear whether VM and the classic migraine without vertigo represent the same disease entity or they are different disorders. By other words, it is not clear whether VM and the migraine without vertigo have same or different patho-mechanisms. The current study was designed to address these issues by comparing between VM patients and migraine patients without vertigo as regards the different audio-vestibular findings. In addition, each category was compared to control subjects. Twenty five adults with VM and twenty five adults with migraine without vertigo were subjected to different audio-vestibular testing as PTA, OAEs (cochlear functions), ABR (brainstem function) , OAEs with CAS (efferent auditory integrity), VEMP and VNG (vestibular functions). We compared the VM patients and migraine patients without vertigo through different audio-vestibular findings. The comparison was performed at different anatomical levels of the audio-vestibular pathways including the inner ear and brainstem using the appropriate tests. Tinnitus, phonophobia and photophobia were statistically more common in the VM group. Overall, results of the current study show that symptoms are more common in VM patients as compared to migraine patients. Our results suggest that VM is a complicated stage of the migraine disease at the audio-vestibular level. This is shown by findings in the current study that the cochleo-vestibular abnormalities were more prevalent in VM patients as compared to migraine patients. It is strongly recommended to manage the migraine disease properly to minimize its complication on the audio-vestibular system as hearing loss or vertigo.