Different pathogenesls of benign paroxysmal positional vertigo from the nystagmus during particle repositioning maneuver

VernacularTitle:后半规管良性阵发性位置性眩晕患者复位中眼震分析
Author: Xin MA ¹ ; Yuan-Yuan JING ; Rui-Ming XIA ; Li-Sheng YU
Author Information

1. 北京大学人民医院
Keywords: Vertigo; Nystagmus,pathologic
From: Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2009;44(5):377-380
CountryChina
Language:Chinese
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, 21cases 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.