| Summary: | 碩士 === 國立臺北護理健康大學 === 聽語障礙科學研究所 === 101 === Objective: To investigate the effect of sleep disorders as variable affecting outcome in patients with posterior semicircular canal-benign paroxysmal positional vertigo (PSC-BPPV) treated with canalith repositioning maneuvers (CRP).
Methods: Retrospective chart review of the patients complaining of positional vertigo and diagnosed as PSC-BPPV after testing the Dix-Hallpike maneuver and treated with CRP during the years 2008 to 2010. All patients were followed up till December, 2012 and interviewed for seeing recurrence of vertigo or not by phone in April, 2013. There were a total of 243 patients, including 47 males and 196 females, with the average age of 57.5 years old. Variables identified for statistical analysis included age, gender, past medical history, sleep disorders, and related association with head trauma, inner ear diseases and cardiovascular diseases. The success rate for initial CRP and numbers of CRP performed were also recorded. Multivariate statistics using Pearsonχ2, Kaplan-Meier estimate, log-rank test, and Cox proportional hazard regression model were studied.
Results: The success rate of curing vertigo after 1st initial CRP was 83.1% one week later. Gender and sleep disorders had statistical significance affecting the recurrence of vertigo after initial CRP(Pearsonχ2, p < 0.05*). The effect of recurrence was associated with gender, sleep disorders and inner ear diseases (survival analysis, log-rank test, p < 0.05*). However, via different statistical analysis, the risk of recurrence was not associated with age, gender, sleep disorders, head trauma, inner ear disease or cardiovascular diseases (Cox proportional hazard regression model, Cox Model).
Conclusion: The CRP is a safe, simple and effective treatment for BPPV. It should be the initial choice for treating PSC-BPPV. Sleep disorders and inner ear diseases may affect the recurrence rate of BPPV patients treated with CRP.
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