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Journal of the Korean Balance Society 2002;1(2): 259-265.
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| 전정기능검사에서 정상소견을 보이는 어지러운 환자들의 임상적 특징 |
| 정원호, 방은국, 홍성화, 이치규, 이현석 |
| 성균관대학교 의과대학 삼성서울병원 이비인후과학교실 |
| The clinical characteristics of dizzy patients with normal vestibular function tests |
| Won Ho Chung, Eun Guk Bang, Sung Hwa Hong, Chi Kyou Lee, Hyun Seok Lee |
| Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea. whchung@smc.samsung.co.kr |
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| ABSTRACT |
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Background and Objectives : Dizziness is a very common complaint in every day practice. The prevalence of dizziness ranges from 1.8 % in young adults to 30% in the elderly. The sensitivity of vestibular function tests is limited. It was reported that the sensitivity of electronystagmography for diagnosing peripheral vestibular disorders was variable, ranging from 46 to 74%. The objective of this study is to analyse the causes and clinical characteristics of dizzy patients who show normal vestibular function tests.
Materials and methods : From January 1999 to June 2001, 375 dizzy patients with normal vestibular function tests(mean age, 49.7 years; range, 8 to 79 years) were assessed with the medical records and typed questionnaires about dizziness.
Results : Dizzy patients with normal vestibular function tests were attributed to an unknown cause in 20.0% of patients, benign paroxysmal positional vertigo in 19.5%, migrainous dizziness in 11.7%, psychogenic dizziness in 10.4%, Meniere's disease in 9.6% and vertebrobasilar insufficiency in 7.2%.
Conclusion : Dizzy patients with normal vestibular function tests can be evaluated by careful history taking and combined multidisciplinary approach with neurologist, psychiatrist and cardiologist and strict diagnostic criteria are necessary. |
| Keywords:
dizziness; vestibular function tests |
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