Correlation of o-VEMP and v-HIT Test Results with Caloric Test Results iSn Peripheral Vestibular Disorders

• Published in: Journal of academic research in medicine Vol. 7; no. 1; pp. 26 - 31
• Main Authors: Ozdek, Ali, Keseroglu, Kemal, Er, Serap, Unsal, Selim, Gunduz, Mehmet
• Format: Journal Article
• Language: English; Turkish
• Published: Istanbul AVES 01.04.2017; Galenos Publishing House
• Subjects: Analysis; Care and treatment; Risk factors; Vestibular diseases; Vestibular function tests
• ISSN: 2146-6505; 2147-1894
• DOI: 10.5152/jarem.2017.1219

Objective: To investigate the correlation of ocular vestibular evoked myogenic potential (o-VEMP ) and video head impulse (v-HIT) test results with caloric test results in peripheral vestibular disorders, and to define an algorithm for investigating vestibular disorders. Methods: All patients underwent an ENT physical examination, an MRI scan, videonystagmography, an o-VEMP test, and a v-HIT test. The patients who had central-type vertigo, PBBV, and vestibular migraine were excluded from the study. Overall, 30 patients were included in the study. Results: Canal paralysis was observed in 22 patients (73.3%). Pathological o-VEMP and v-HIT test results were obtained in 19 (63.3%) and 8 (26.7%) patients, respectively. Pathological o-VEMP or v-HIT was observed in 17 of 22 (77.3%) patients with canal paralysis. Sensitivity and specificity of a combination of o-VEMP and v-HIT test results for detecting canal paralysis were 77.3% and 80.1%, respectively. Conclusion: It does not seem that o-VEMP and v-HIT tests can replace the caloric test to detect vestibular hypofunction. However, these two tests can be used as first-line tests to initiate vestibular evaluation. If one of these two tests shows vestibular hypofunction, there is no need to perform a caloric test.