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Research in Vestibular Science > Volume 11(1); 2012 > Article
Research in Vestibular Science 2012;11(1): 23-28.
양성 돌발성 두위현훈에서 이석기능검사와 발생 위험인자의 연관성
, , , , 정재훈1, 박지윤2, 박현미3, 이태경4, 성기범4
1순천향대학교 의과대학 구미병원 신경과학교실, 2예수병원 신경과, 3가천대학교 의학전문대학원 신경과학교실, 4순천향대학교 의과대학 부천병원 신경과학교실
The Relations of Otholith Function Tests and Risk Factors of Benign Paroxysmal Positional Vertigo
Jae Hoon Joung, Ji Yun Park, Hyeon Mi Park, Tae Kyeong Lee, Ki Bum Sung
1Department of Neurology, Gumi Hospital, Soonchunhyang University College of Medicine, Gumi, Korea.
2Department of Neurology, Presbyterian Medical Center, Jeonju, Korea.
3Department of Neurology, Gachon University Gil Hospital, Incheon, Korea.
4Department of Neurology, Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea. sungkb@schmc.ac.kr
Background and Objectives:   Since the liberated otoconia from the degenerated utricle has been postulated as the cause of the benign paroxysmal positional vertigo (BPPV), the relationship of the utricular function and the generation of BPPV have been studied. In addition, abnormal bone metabolism and vascular risk factors resulting insufficient circulation to utricle has been reported to be related to the utricular degeneration in BPPV. We investigated the relationship between the vascular risk factors, bone mineral density (BMD) and recurrence for the BPPV and otholith function tests of BPPV.
Materials and Methods:  
Consecutive patients 84 with BPPV were recruited in a dizziness clinic. Caloric test, ocular vestibular evoked myogenic potentials (oVEMPs) were tested in all the patients in acute phase of BPPV. At the same time, vascular risk factors and BMD were performed. Vascular risk factors were history of hypertension, diabetes mellitus, hyperlipidemia and ischemic heart disease. All the data were analyzed for the relationship between abnormal results of vestibular function tests and the risk factors.
Patients 58 (69%) showed abnormal cervical VEMPs that were related to decreased bone density, having more than one vascular risk factor, and older age (>55 years). Abnormal oVEMPs were showed in 53 patients (63%) that were related to older age and vascular risk factors, but not statistically related to bone mineral density. Caloric tests failed to show any statistically significant results.
We found abnormal results of cVEMPs and oVEMPs is related to the BMD, vascular risk factors and age. VEMPs could be used for the demonstration of presumptive otolith degeneration in BPPV.
Keywords: Benign paroxysmal positional vertigo; Vestibular evoked myogenic potentials; Bone mineral density
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