The analysis of smooth pursuit test in unilateral vestibular peripheral vertigo.
- Author:
Jing BI
1
;
Peng LIN
;
Taisheng CHEN
;
Hong DONG
;
Wei SONG
;
Xuejie FAN
;
Yue MI
Author Information
1. First Center Clinic College, Tianjin Medical University, Tianjin, 300070, China.
- Publication Type:Journal Article
- MeSH:
Adolescent;
Adult;
Aged;
Aged, 80 and over;
Case-Control Studies;
Female;
Humans;
Male;
Middle Aged;
Nystagmus, Pathologic;
Pursuit, Smooth;
Vertigo;
diagnosis;
physiopathology;
Vestibular Function Tests;
Young Adult
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2010;24(1):8-15
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To analyze the result of smooth pursuit test (SPT) in unilateral vestibular peripheral vertigo and investigate its influencing factors.
METHOD:Smooth pursuit test (SPT) and spontaneous nystagmus (SN) were examined in one hundred and eighty-five patients with unilateral peripheral vertigo (case group) and 51 normal persons (control group) by Video-Nystagmography (Synapsis, France), and the gain of SPT and SN were selected as the observation parameters in order to analyze the waveform and gain of SPT and the relativity between SN and the gain of SPT.
RESULT:Of the 185 patients, 105 (56.8%), 72 (38.9%) and 8 (4.3%) cases produced I , II and III waveforms respectively. Of these patients, 58 (31.4%) demonstrated SN and none had IV waveform. While of 51 normal persons, 38 (74.5%), 13 (25.5%) persons produced I and II waveforms respectively and there were no III, IV waveforms or SN. There was statistical significance between the strong and weak gain of SPT in these two groups. Weak gain was significantly different between two groups. The strong and weak gain of SPT in case group were 0.86 +/- 0.06, 0.80 +/- 0.06; 0.78 +/- 0.09, 0.65 +/- 0.1; 0.68 +/- 0.13, 0.45 +/- 0.12. The relativity between SN and the gain of SPT was positive when they had same direction (r(s) = -0.63, P<0.05) and negative when opposite (r(s) = 0.34, P<0.05).
CONCLUSION:I , II, III three waveforms of SPT could appear in unilateral vestibular peripheral vertigo and the corresponding gains are gradually decreasing. SN is the influencing factor of SPT.
