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[Different pathogenesis of benign paroxysmal positional vertigo from the nystagmus during particle repositioning maneuver].

[Article in Chinese]

Author information

  • 1Department of Otorhinolaryngology, People's Hospital, Peking University, Beijing 100044, China.

Abstract

OBJECTIVE:

To analyze the nystagmus during particle repositioning maneuver for posterior semicircular canal benign paroxysmal positional vertigo (PC-BPPV), and verify different pathogenesis of benign paroxysmal positional vertigo (BPPV).

METHODS:

The chief complains, nystagmus during positioning test and particle repositioning maneuver (PRM) were recorded in detail from 66 PC-BPPV cases during Dec.2007 and Apr.2008, and verifying possible pathogenesis of BPPV was based on nystagmus.

RESULTS:

Of all 66 PC-BPPV cases, the four positions of PRM were found in 24 cases presented upward torsional nystagmus at the second or third position, 21 cases presented negative nystagmus except the first position, 7 cases presented intensity horizontal nystagmus during PRM and 14 cases presented downward nystagmus at the second or third position during PRM. Of all 66 cases, 78.8% of them were accord with canalithiasis and cupulolithiasis while the other may be related with otolith organ or nerve disease.

CONCLUSIONS:

Besides canalithiasis and cupulolithiasis, part of BPPV may be related with otolith organ or nerve disease.

PMID:
19567045
[PubMed - indexed for MEDLINE]
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