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ORIGINAL RESEARCH article

Front. Neurol.
Sec. Neuro-Otology
Volume 15 - 2024 | doi: 10.3389/fneur.2024.1496430

Clinical observation of video head pulse test of idiopathic horizontal semicircular canal light cupula

Provisionally accepted
Song Niu Song Niu Jingling Chang Jingling Chang Wenyan Xu Wenyan Xu PEI XUEMEI PEI XUEMEI *
  • Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China

The final, formatted version of the article will be published soon.

    Objective To analyze and explore the vHIT characteristics of the light cupula in the idiopathic horizontal semicircular canal, and compare it with the horizontal semicircular canal cupulolithiasis to explore the potential mechanism. Methods The data of 51 cases of idiopathic light cupula and 42 cases of horizontal semicircular canal cupulolithiasis were retrospectively analyzed. The positional nystagmus features, vHIT anomaly rate, gain value, saccasmus and other indicators were compared. SPSS 26 and Medcalc 22 were used to analyze the differences and correlation. Results There were no differences in gender, age, affected side and positional nystagmus between light cupula group and HC-cu group (P > 0.05). The overall abnormal rate of vHIT (56.86% vs. 21.43%), abnormal rate of affected side (23.53% vs. 0.00%) and saccade ratio of affected side [40.0 (13.0, 76.0) vs. 6.0 (0.0, 15.0)] in light cupula group were higher than those in HC-cu group. The HC saccade ratio in the light cupula group was higher on the affected side than on the healthy side [40.0 (13.0, 76.0) vs. 11.0 (0.0, 38.0)], and the differences were statistically significant (P < 0.05). ROC curve analysis showed that the abnormal vHIT and saccade ratio of light cupula group were correlated with the affected side (P < 0.05). Conclusions Idiopathic HC light cupula and HC-Cu vHIT results are different, they are different diseases. The light cupula may be associated with some mild lesions in the VOR pathway. Lighter Cupula Theory is the possible mechanism.

    Keywords: Light cupula, Direction-changing positional nystagmus, Video head impulse test, Vestibular Function Test, Cupulolithiasis

    Received: 14 Sep 2024; Accepted: 27 Nov 2024.

    Copyright: © 2024 Niu, Chang, Xu and XUEMEI. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: PEI XUEMEI, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China

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