View clinical trials related to Dizziness.
Filter by:Benign Paroxysmal Positional Vertigo (BPPV) is the most frequent cause of vertigo of peripheral vestibular origin with life time incidence of 2.4%. BPPV is characterized by bouts of acute whirling vertigo lasting less than one minute provoked by changes in head position in relation to the gravitational vector. The vertigo is accompanied by typical rotational or horizontal nystagmus that is often demonstrated by the Dix-Hallpike maneuver and less frequently by testing for positional nystagmus. BPPV pathogenesis is currently explained by the fall of otoconia (calcium-carbonate crystals) or otoconial debris from the tectorial membrane of the otolithic organs into the dependant semicircular canals (canalithiasis) or adherence of such particles to the semicircular canal's cupula (cupulithiasis). Under these circumstances, the semicircular canal which normally responds only to angular velocity and acceleration is stimulated by gravity. Otoconial remnants as free floating particles inside the semicircular canal arms or attached to the cupula have been observed by few investigators. Although the presence of such particles explains most characteristics of the positioning nystagmus described in BPPV, it does not account for the dizziness and disequilibrium which are described by many patients even without changes in head position and the continuation of such symptoms after successful treatment of BPPV as evidenced by the resolution of positional vertigo and nystagmus. The study hypothesis is that otolithic pathology is an important component in the pathogenesis of BPPV explaining these symptoms, BPPV recurrence, and the refractoriness of some BPPV cases to the vastly employed particles repositioning treatments. In the present study the Vestibular Evoked Myogenic Potentials (VEMP) testing would be employed to measure the function of one of the otolithic organs - the saccule. The study objectives are: 1. To investigate possible malfunction of the saccule in patients suffering from BPPV. 2. To look for association between saccular pathology and BPPV recurrence and between such pathology and BPPV treatment failure. 3. To study possible relation between saccular pathology and continuation of dizziness and disequilibrium despite the resolution of positional vertigo.
Dizziness has been identified as a risk factor for fall and vestibular asymmetry has been found among patients with fall-related wrist fractures as well as among patients with hip-fracture. Since wrist fracture is a risk factor for hip-fracture, much effort is focused on preventing falls for risk-groups. Therefore, it would be interesting to find out if it is possible to influence vestibular asymmetry with vestibular rehabilitation. The aim of this study is therefore to find out if vestibular rehabilitation can have any effect on vestibular function among patients with fall-related wrist fracture.
The propose of this study is to compare two methods of physical treatment for benign paroxysmal positional vertigo, by evaluating treatment effects on postural stability. The trail design is a double blinded randomized controlled trail, with each patient going through three evaluations: before treatment, 1 week after treatment and 60 days after treatment.
Do migrainous vertigo patients have more pathology in their vestibular system than migraine patients without vertigo? The aim of this study is to compare the vestibular system of migraine patients with and without vertigo in the symptom-free period by vestibular function tests, videonystagmography, vestibular evoked myogenic potentials, and subjective visual vertical.
The goal of this project is to provide individuals that have a balance deficit with a device that will give them signals that they can feel (vibrations) in order to help them maintain a correct sense of balance and perception of place in the environment.
The purpose of this study is to demonstrate whether, in patients diagnosed with Vertical Heterophoria, the symptoms of dizziness, headache and / or anxiety are reduced or eliminated when a kind of correction called vertical prism is added to the patient's normal eye glass prescription. The experiment will involve giving the patient two pairs of glasses (one pair containing the baseline prescription with vertical prism (Standard Treatment Glasses) and the other pair containing the baseline prescription but without vertical prism (Placebo Glasses)) to demonstrate which pair of glasses is most effective in reducing the symptoms of dizziness, headache and / or anxiety in these patients.
The investigators primary aim is to test whether or not provision of the self-help booklet teaching VR exercises, with up to one hour of telephone support from a vestibular therapist, will be more effective than routine care in reducing symptoms in dizzy patients in primary care. The investigators will also explore the extent to which patients may benefit from the self-help booklet without support. The investigators will determine whether these models of delivery are less costly than routine care of dizzy patients, as they should reduce the number of patients seeking referral to secondary care for unnecessary assessments.
The purpose of this study is to determine whether topiramate effective in treating dizziness symptoms that are associated with migraine headaches.
Benign Paroxysmal Positional Vertigo (BPPV) is one of the most common causes of vertigo and the most common vestibular disorder of the inner ear. BPPV is the result of small free-floating particles (canaliths) in the posterior semicircular canals where they aggravate the sensory apparatus and induce sudden and severe attacks of vertigo when the head is turned into certain positions. The treatment of BPPV was revolutionized by the introduction of the Epley maneuver, a sequence of head movements that use gravity to reposition the canaliths within the inner ear. The Epley maneuver provides prompt relief from vertigo in approximately 80% of patients. The innovation, the Vertigone goggle, provides both physician and patient with visual feedback to guide them through an accurate Epley maneuver. This changes the current treatment paradigm for BPPV, greatly increasing the availability of the maneuver to non-specialist physicians, nurse practitioners, physician's assistants and physical therapists. The device is designed so that the patient with recurrent vertigo can use the goggle to treat BPPV at home. The goggle is currently a pre-market prototype. The hypothesis for the study is that accuracy in the performance of the Epley maneuver correlates with improved clinical resolution of vertigo in BPPV patients. If the hypothesis is true, then there is a clear case for the utility of the visual feedback provided by the VertiGONE goggle in performing the maneuver.
The aim of this study is to assess if early supported vestibular rehabilitation can reduce dizziness and improve daily life activities in patients with acute vestibular injury. The study question is: Does early supported vestibular rehabilitation have an additional effect on dizziness symptoms and daily life functions compared to standard treatment?