The nystagmus characteristics of two positions of the horizontal semicircular canal cupulolithiasis
10.3760/cma.j.issn.1673-0860.2018.12.003
- VernacularTitle: 水平半规管壶腹嵴顶结石症两种位置试验的眼震特征
- Author:
Chao WEN
1
;
Wei WANG
1
;
Kaixu XU
1
;
Qiang LIU
1
;
Shanshan LI
1
;
Xi HAN
1
;
Taisheng CHEN
1
;
Peng LIN
1
Author Information
1. Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Otorhinolaryngology Institute of Tianjin, Tianjin 300192, China
- Publication Type:Journal Article
- Keywords:
Vertigo;
BPPV;
Vestibular function tests;
Nystagmus, physiologic
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2018;53(12):888-892
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the characteristics of nystagmus of horizontal semicircular canal cupulolithiasis(HSC-Cup) in Roll test and Dix-Hallpike test.
Methods:Between December 2016 and December 2017, a total of 164 patients with BPPV from Tianjin First Center Hospital, 124 HSC-Can BPPV and 40 HSC-Cup BPPV, were involved.The induced nystagmus in Roll test and Dix-Hallpike test were recorded by video-nystagmograph(VNG), whose direction and intensity characteristics were compared in various BPPV.
Results:HSC-Can patients were induced a horizontal nystagmus with Roll test, the nystagmus intensity of the disease and healthy side were (41.3±20.1)°/s (mean standard deviation)and(21.9±9.4)°/s respectively, the difference was statistically significant (t=6.709, P<0.05). HSC-Cup patients were induced a horizontal nystagmus that was opposite to the direction of the Roll test, the nystagmus intensity of the disease and the healthy side were (12.9±6.4)°/s and(29.1±9.3)°/s respectively, with significant difference (t=9.066, P<0.05). Among 124 cases of HSC-Can patients, 120 cases of horizontal nystagmus were recorded in the left and right sides of the Dix-Hallpike test in the same direction as the turning direction, the horizontal nystagmus intensity of the disease and the healthy sides were (15.1±10.0)°/s and(9.4±7.4)°/s respectively, the difference was statistically significant (t=2.365, P<0.05). And 40 cases of HSC-Cup patients were recorded at the head of the Dix-Hallpike test in the opposite direction to the horizontal eye earthquake.The horizontal nystagmus intensity of the disease and the healthy side were (5.3±2.8)°/s and(13.9±4.4)°/s respectively, the difference was statistically significant (t=10.579, P<0.05).
Conclusions:Characteristic horizontal nystagmus can be induced by HSC-Cup in both roll test and Dix-Hallpike test. Preliminary localization of Dix-Hallpike Test can also be used for HSC-Cup.
