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Research in Vestibular Science > Volume 12(0); 2013 > Article
Research in Vestibular Science 2013;12(0): S82-S84.
비정형 양성 돌발성 두위현훈
가천의과학대학교 길병원 이비인후과학교실
Complicated Benign Paroxysmal Positional Vertigo: Atypical, Multi-Canal, and Transitional Type
Gyu Cheol Han
Department of Otolaryngology-Head & Neck Surgery, Gachon University of Medicine and Science, Graduate School of Medicine, Incheon, Korea
Correspondence  Gyu Cheol Han ,Tel: +82-32-460-3324, Fax: +82--32-467-9044, Email: hangckr@gmail.com
  Published online: June 1, 2013.
Benign paroxysmal positional vertigo (BPPV) is diagnosed when vertigo and typical nystagmus are elicited by the positional maneuvers. Otherwise, the others unexplainable nystagmus beyond the typical form was called “atypical form” BPPV. The reports of atypical form in BPPV have been decreased according to expansion of knowledge or experience about various BPPV. Atypical BPPV include the switch or transitional, bilateral, and multi-canal type BPPV. Recently those complicated BPPV have been investigated by 3D video nystagmography and high resolution magnetic resonance image. Although we could not fully understand the etiology and pathophysiology of BPPV, These efforts to define the atypical BPPV should be helpful to grow up background knowledge of physician.
Keywords: Benign paroxysmal positional vertigo; Pathologic nystagmus; Atypical
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