A Comparative Analysis of the Vestibulocochlear Function in Patients with Isolated Semicircular Canal Hypofunction Using a Video Head Impulse Test

Objectives: The objective of this study was to analyze vestibulocochlear function results in patients identified with isolated semicircular canal (SCC) hypofunction using the video head impulse test (vHIT).Methods: A retrospective review conducted on clinical records 123 diagnosed SCC based vHIT results. Among these patients, 72 had posterior (PSCC) hypofunction, 25 lateral (LSCC) and 26 anterior (ASCC) hypofunction. Descriptive analyses were performed various tests including pure tone audiometry, sinusoidal harmonic acceleration (SHA), spontaneous nystagmus (SN), head-shaking (HSN), caloric testing, cervical vestibular evoked myogenic potential, analyzed separately for each group.Results: found that 66.0% evaluated exhibited abnormal at least one test. PSCC showed a significantly higher incidence hearing loss compared ASCC LSCC patients. rates corrective saccade, phase asymmetry SHA, SN abnormalities other Additionally, saccade SHA also demonstrated normal lead SN.Conclusions: analysis suggests even cases where indicates additional should be identify any associated dysfunctions. This highlights importance comprehensive evaluation accurately diagnose manage