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  • Title: [To analyze the etiology of benign paroxysmal positional vertigo].
    Author: Zhang N, Chen T, Dong H, Lin P, Liu R.
    Journal: Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2011 Apr; 25(7):307-11. PubMed ID: 21710718.
    Abstract:
    OBJECTIVE: To analyze the occurrence and probable etiological factors of benign paroxysmal positional vertigo (BPPV). METHOD: one hundred and twenty four BPPV cases were inquired histories, classified into different groups and analyzed relevant diseases. All patients were taken Caloric tests before Canal repositioning procedure, and compared the differences of unilateral weakness (UW) and semicircular canal involved between BPPV patients with and without relevant diseases. RESULT: There were 97 (78.2%) patients with relevant diseases while 27 (21.8%) without. Ninety-two (74.2%) patients with abnormal UW. To compare the normal and abnormal UW, posterior canal and lateral canal with abnormal UW values, unilateral or bilateral of abnormal UW values, consistency of abnormal UW side and BPPV side between BPPV patients with and without relevant diseases, there were no significant differences (Chi-square values were 0.000, 0.000, 0.306, 0.027, P>0.05). CONCLUSION: BPPV patients with relevant diseases are common, which mainly occurs in middle-aged or aged people and female. Otolith ecclesiis and dysfunction of semicircular canal may have the same etiological factors. Caloric tests may do help to analyze the BPPV etiological factors.
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