Cervical vestibular-evoked myogenic potentials in patients with essential tremor. (September 2021)

• Record Type: Journal Article
• Authors: Bayramoglu, Banu; Emre, Ufuk; Erdal, Yuksel; Demirhan, Hasan; Yasak, Ilknur; Yalin, Osman Ozgur
• Is Part Of: Journal of clinical neuroscience. Volume 91(2021)
• Page Start: 365
• Page End: 368
• Publication Date: 2021-09
• Subjects: Essential tremor -- Vestibular evoked myogenic potentials -- Brain stem; Brain -- Surgery -- Periodicals; Neurosciences -- Periodicals; Nervous system -- Surgery -- Periodicals; Brain -- surgery -- Periodicals; Neurosurgical Procedures -- Periodicals; Neurosciences -- Periodicals; Electronic journals; 616.8
• DOI: 10.1016/j.jocn.2021.07.015
• Languages: English
• ISSNs: 0967-5868

Abstract

Highlights: Vestibular-evoked myogenic potentials is a non-invasive test evaluating the brainstem and reflex pathways. The brainstem and associated pathwaysare implicated in the pathophysiology of essential tremor. Cervical VEMP may reveal the involvement of brainstem and associated reflex pathways in essential tremor. Abstract: Although different neuroanatomical structures and pathways are emphasized as possible explanations for essential tremor (ET), there is still an ongoing debate. This study aimed to assess the role of brainstem and reflex pathways with cervical vestibular-evoked myogenic potentials (VEMP) in patients with ET. This prospective study included 34 patients with ET and 25 healthy controls. Cervical VEMP was performed in both groups and latencies, inter-peak latency intervals, peak-to-peak amplitudes and asymmetry ratios were recorded. There was statistically no significant difference between the groups in terms of age (38.9 ± 14.9 years vs. 38.9 ± 14.9 years, p = 0.673) and gender (female to male ratio: 14/11 vs. 20/14, p = 0.828). Right N1 latency and right N1–P1 interval were significantly longer in the patient group (p < 0.05). There was a significant positive correlation between the duration of disease and the right N1–P1 interval (p < 0.05). There was no significant difference between the patient and control groups in terms of bilateral P1 latency, left N1 latency, left N1–P1 interval, and bilateral N1 and P1 amplitudes (p˃0.05). Cervical VEMP may reveal the involvement of brainstem and associated reflex pathways in ET.