[Dolichoectasia of the basilar artery caused by cystic medial degeneration, as a cause of neurovascular conflict with damage to the trigeminal, facial and vestibulocochlear nerves].

Cystic medial degeneration (Gsell-Erdheim syndrome, cystic medial necrosis) is considered to be a nonspecific histological manifestation of a group of diseases characterized by degenerative changes in the media, affecting primarily the aorta and adjacent branches, which leads to destruction of the vessel wall, followed by its expansion and, possibly, rupture. The authors describe a case of a 65-year-old female patient with a neurovascular conflict of the three cranial nerves with dolichoectatic basilar artery due to cystic medial degeneration. As a result, the patient has clinical manifestations in the form of hemifacial spasm, trigeminal neuralgia and vestibular paroxysmia.

[Statokinetic characteristics of vestibular dysfunction in patients with vascular compression of the cochleo-vestibular nerve].

Aim: To study the state of statokinetic stability in patients with recurrent vestibular dysfunction caused by the vascular compression of the cochlea-vestibular nerve.

Material And Methods: Authors examined 30 patients with recurrent vestibular dysfunction in which neuroimaging studies revealed the vessel adjacent to the cochlea-vestibular nerve. Statokinetic stability evaluation was selected as a neurophysiological indicator of the cochlea-vestibular nerve hyperactivity syndrome.