Analysis Of The Clinical Features Of 1797 Dizziness Cases

Objective:(1)The study summarizes the clinical features of dizziness cases in order to understand dizziness.(2)The study analyze the clinical features of BPPV in order to master its law and improve level of diagnosis and therapy at our hospital.Methods:(1)1556 outpatients complained with dizziness obtained from January 2015 to June2015 at our hospital were participants of this retrospective study.The sex,age and causes of dizziness was elaborated in this study.(2)241 outpatients diagnosed with BPPV(benign paroxysmal positional vertigo)chosen from July 2015 to August 2015 at our hospital were participants of another prospective study.The clinical features of BPPV including sex,age,course,risk factors,the latency period and duration time of nystagmus,curative effect with vertigo diagnosis and therapy system(SRM-IV) were elaborated in this study.Results:(1)The proportion of men and women with dizziness is 1:1.85,and the mean age is52.6±13.3 years old,the peak age of morbidity is 40-59 years old.(2)The common causes of dizziness include BPPV,Ménière’s disease,chronic objective dizziness,,vestibular migraine,vestibular neuritis and central vertigo.BPPV is the most important cause of dizziness among different age groups.(3)The proportion of men and women with BPPV is 1:1.9,and the mean age is53.4±12.7 years old,the peak age of morbidity is 40-69 years old.(4)The first department patients with BPPV often send to is neurology department,internal medicine department and emergency department,and were often misdiagnosed with “cervical decease” and “cerebral circulation insufficiency”.(5)The most common subtype of BPPV is PSC-BPPV(posterior semicircular canal BPPV).(6)The latency period of nystagmus of horizontal semicircular canalolithiasis BPPV is the shortest and the duration time of nystagmus is longer than posterior semicircular canalolithiasis BPPV,but the duration time of nystagmus of horizontal semicircular cupulolithiasis BPPV is the longest.(7)The curative effect of vertigo diagnosis and therapy system(SRM-IV) is positive,the success rate is high,the total effective rate is 88.4%.Conclusion:(1)The women are more than men in dizziness patients and the middle aged and elderly people are the most.(2)The common causes of dizziness include BPPV,Ménière’s disease,chronic objective dizziness,vestibular migraine,vestibular neuritis and central vertigo.BPPV is the most important cause of dizziness.(3)The most common subtype of BPPV is posterior semicircular canal BPPV.(4)Different subtypes have its own clinical features on types,latentperiod and duration time of nystagmus.(5)The curative effect of vertigo diagnosis and therapy system(SRM-IV) is positive,the success rate is high.