The Importance of Choosing Head and Neck MeasurementPositions for Eliciting Cervical Vestibular-evokedMyogenic Potentials (cVEMPs) in Patients

There are differences in the recording methods for cVEMP used across institutions. However, impact of head and body positions on results testing is yet to be determined patients with dysequilibrium. We assessed effects three recordings results, demonstrated advantages disadvantages each position. Three were recordings; A. supine/head rotated; B. semi-recumbent/head rotated elevated; C. elevated. The subjects present study 139 (9-91 years old) dysequilibrium various causation, 41 underwent two positions, a total 360 ears included. classified as normal, abnormal, indeterminate. rates indeterminate 50.6%, 35.0%, 14.4%, respectively. rate abnormal test increased increasing age. was 13.2%, 11.3%, 16.7% A, B, C, mean background sternocleidomastoid muscle (SCM) electrical activity (SCM activity) smaller obtained position A than those other positions. positive correlation identified between age SCM raw p13-n23 complex amplitude (amplitude) larger B negative potentials recorded These suggest that C might less burdensome patients, but amplitudes smaller, there appeared higher likelihood complexes being overlooked. On hand, while more detection higher. As has different characteristics, selection measurement appropriate individual recommended. VEMP may useful detect bilateral otolith dysfunction cause chronic dizziness elderly.