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KMID : 1235520130120020054
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Research in Vestibular Science
2013 Volume.12 No. 2 p.54 ~ p.57
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Clinical Characteristics of Benign Paroxysmal Positional Vertigo of the Anterior Semicircular Canal
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Kim Min-Bum
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Abstract
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Background and Objectives: The aim of this study is to investigate the characteristics of anterior semicircular canal benign paroxysmal positional vertigo (BPPV). Materials and Methods: This is a retrospective chart review of 1,150 patients who were diagnosed with BPPV at an ENT special hospital. We investigated a number of canalith repositioning procedure (CRP), canal switch and a history of recurrence or head trauma. Results: Anterior semicircular canal BPPV was observed in 41 (3.5%) patients. The average number of CRPs in patients with anterior semicircular canal BPPV was 2.19, which was higher than 1.60 in those with posterior semicircular canal BPPV (p<0.0001). Canal conversion from anterior to posterior semicircular canal was found in 5 (12.1%) patients during treatment. The average number of CRPs in conversion cases was 4, which was higher than 1.94 in non?conversion cases (p=0.001). Conclusion: More CRPs were necessary for the treatment of anterior semicircular canal BPPV than posterior semicircular canal BPPV. Canal switch could be considered as a factor to prevent a successful treatment.
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KEYWORD
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Anterior semicircular canal, Benign paroxysmal positional vertigo
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