Clinical value of dynamic posturography in the evaluation and rehabilitation of vestibular function of patients with benign paroxysmal positional vertigo
10.3760/cma.j.issn.1673-0860.2010.09.007
- VernacularTitle:动态平衡仪在良性阵发性位置性眩晕患者平衡功能评价及康复治疗中的应用价值
- Author:
Dao-Gong ZHANG
1
;
Zhao-Min FAN
;
Yue-Chen HAN
;
Gang YU
;
Hai-Bo WANG
Author Information
1. 山东大学附属省立医院
- Keywords:
Vertigo;
Vestibular function tests;
Rehabilitation
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2010;45(9):732-736
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the clinical value of dynamic posturography in the evaluation and rehabilitation of vestibular function of patients with benign paroxysmal positional vertigo (BPPV). Methods A total of 48 patients with BPPV of posterior semicircular canal in vertigo clinic of our hospital from May 2007 to December 2008 were retrospectively analyzed in this study. All patients underwent the inspection of caloric test, static posturography, and dynamic posturography. The vestibular tests were performed at two different time points: at onset when patients had typical nystagmus provoked by the Dix-Hallpike maneuver before treatment with the Epley maneuver (canalith repositioning maneuver, CRM ), and at one week after treatment with CRM as their nystagmus disappeared. And results at theses two time points were compared.Eight patients whose dynamic balances were still abnormal after CRM accepted vestibular rehabilitation exercise using dynamic posturography, and re-examined 3 weeks later with dynamic posturography. Results Among 48 cases of BPPV, the abnormal rates of caloric test, static posturography, and dynamic posturography before CRM were 25.0%, 33.3% and 70.8%, respectively. The abnormal rate of dynamic posturography was much higher than that of caloric test or static posturography, and the differences were statistically significant ( χ2 = 4.84, 7.88; P ＜ 0. 05 ). After CRM, the abnormal rates of caloric test, static posturography, and dynamic posturography were 14.6%, 8.3% and 16.7%, respectively. After CRM, the abnormal rate of static and dynamic posturography showed signi? Cant reduction (χ2 = 24.04, 10.08; P ＜0.05 ), however, the results of caloric test showed no significant change (χ2 = 3.20, P ＞ 0. 05 ). Eight patients whose dynamic balances were still abnormal after CRM, accepted vestibular rehabilitation exercise lasting 3 weeks using dynamic posturography. The dynamic balances were all improved to normal after vestibular rehabilitation. Conclusions Dynamic posturography can quantitatively analyze postural balance,and is helpful in comprehensive evaluation of the vestibular function of BPPV patients. Impaired balance often presents in patients with BPPV. Treatment of BPPV using the canalith repositioning maneuver results in improved postural stability in static and dynamic posturography. However, not all patients have normal dynamic stability after successful CRM. The vestibular rehabilitation exercise using dynamic posturography is a helpful adjunct to the treatment for these patients.
