Natural history of horizontal canal benign paroxysmal positional vertigo is truly short
- Authors
- SHIM, DAE BO; Ko, Kyung Min; Lee, Joon Hee; Park, Hong Ju; Song, Mee Hyun
- Issue Date
- Jan-2015
- Publisher
- SPRINGER HEIDELBERG
- Keywords
- Benign paroxysmal positional vertigo; Semicircular canal; Natural course; Physiopathology
- Citation
- JOURNAL OF NEUROLOGY, v.262, no.1, pp.74 - 80
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NEUROLOGY
- Volume
- 262
- Number
- 1
- Start Page
- 74
- End Page
- 80
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158045
- DOI
- 10.1007/s00415-014-7519-0
- ISSN
- 0340-5354
- Abstract
- The objective of the study is to characterize the natural course of positional vertigo and nystagmus in patients with horizontal canal benign paroxysmal positional vertigo (h-BPPV) and to analyze the difference in the natural course between the two variants of h-BPPV. We conducted a prospective study in 106 patients with geotropic type h-BPPV [h-BPPV (Geo)] (n = 43) and apogeotropic type h-BPPV [h-BPPV (Apo)] (n = 63) who agreed and signed the written informed consent of no treatment. All patients were asked to answer a detailed interview about the onset time of positional vertigo and to visit the hospital every 1-3 days. At every visit, they were interviewed about cessation time of positional vertigo and positional nystagmus was assessed. The mean period +/- A SD between the onset and remission of vertigo in the h-BPPV (Geo) was 6.7 +/- A 6.3 days, whereas that in the h-BPPV (Apo) was 3.7 +/- A 4.1 days. In addition, the mean period +/- A SD from the initial diagnosis to the disappearance of positional nystagmus in the h-BPPV (Geo) was 4.7 +/- A 3.9 days, whereas that in the h-BPPV (Apo) was 4.4 +/- A 5.0 days. Although the duration until natural remission of positional nystagmus did not differ between the two variants of h-BPPV, the remission of vertigo occurred faster in h-BPPV (Apo) than h-BPPV (Geo) (p < 0.05). The natural course of h-BPPV is much shorter than that indicated in previous reports. The positional vertigo disappeared faster in the h-BPPV (Apo) compared to the h-BPPV (Geo) unlike the positional nystagmus.
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