Analysis of risk factors for residual dizziness in patients with benign paroxysmal positional vertigo / 中华神经科杂志

ABSTRACT

Objective To study the incidence and duration of residual dizziness after successful repositioning treatment in patients with benign paroxysmal positional vertigo (BPPV) as well as the clinical factors associated with the residual dizziness.Methods Two hundred and eighty-four cases of confirmed BPPV patients were followed up for 3 months after particle repositioning,and the incidence and duration of residual dizziness were analyzed; The risk factors for residual dizziness were analyzed by logistic regression.Results (1) Two hundred and eighty-four cases of confirmed BPPV were included in this study,and 158 cases (55.63％,158/284) complained of residual dizziness.Two hundred and forty-five cases completed the 3-month's follow-up,the rate of residual dizziness in the 30th was 13.67％ (38/278),the 60th was 9.29％ (25/269),and 7.75％ (19/245) in the 90th day.The average age of the residual dizziness group was significantly older than non-dizzy group (61.46 ± 9.38 vs 56.93 ± 7.62,t =2.121,P =0.015).In addition,the incidence of residual dizziness in female was higher than that seen in male(62.41％ (88/141)vs 37.59％ (53/141),x2 =7.984,P =0.005).(2) Logistic regression analysis showed that the duration of vertigo before treatment was an independent risk factor for residual dizziness (OR =2.988,95％ CI 1.688-5.292,P =0.000).Conclusions (1) More than half of the patients included in this study complain of residual dizziness after particle repositioning,and symptoms disappear naturally within one month.(2)The duration of vertigo pre-treatment is an independent risk factor for residual dizziness.