ABSTRACT
Objective To study the incidence and duration of residual dizziness after successful repositioning treatment in patients with benign paroxysmal positional vertigo(BPPV) and the clinical factors associated with the residual dizziness.Methods A total of 202 cases of confirmed BPPV patients,61 males and 141 females with the average age of 54.78± 13.71 years old,were followed up for 2 months after successful particle repositioning.The incidence and duration of residual dizziness were analyzed.The risk factors for residual dizziness were analyzed by logistic regression.Results A total of 202 cases of confirmed BPPV were included in this study,and 113 cases complained of residual dizziness.Over the time,residual dizziness disappeared gradually.The differences of the age,the duration of vertigo before treatment,recurrent,and underlying diseases between the two group were significant (P ＜0.05),while the side,the gender,the incubation period of BPPV,the duration time of BPPV,and the types of canals were not associated with the residual dizziness(P＞0.05).The logistic regression analysis showed that the duration of vertigo before treatment and the age were the risk factors for residual dizziness.Conclusion More than half of the patients included in this study complained of residual dizziness after particle repositioning,and the symptoms disappeared naturally.The duration of vertigo before treatment and the age were the risk factors for residual dizziness.
ABSTRACT
Objective To investigate the characteristics and clinical significance of ocular vestibular evoked myogenic potential (oVEMP) and caloric test in Meniere disease (MD) at different hearing stages.Methods Fifty-five patients(52.8±15.8 years old) with MD were divided into stage 1(9 cases,48.8±13.8 years old), stage 2(9 cases,46.0±16.3 years old), stage 3(23 cases,50.3±13.5 years old) and stage 4(cases 14, 53.5±16.2 years) respectively according to the pure tone audiometry.They were evaluated by oVEMP and caloric test.Results The abnormal rates of oVEMP were 55.6%, 66.7%, 78.3%, 78.6%,and caloric tests were 22.2%, 33.3%, 78.3%,and 85.7% respectively in stage 1, 2, 3, and 4 MD patients.The amplitudes of oVEMP in stage of 1, 2, 3, and 4 MD patients were 4.3±4.0 μV,3.5±2.3 μV,2.5±2.4 μV,and 1.3±0.5 μV,respectively.Conclusion The abnormal rates of oVEMP and caloric tests in MD patients increased with the degree of hearing impairment and the amplitudes of oVEMP were decreased, suggesting that utricle and horizontal semicircular canal injuries were aggravated.