View clinical trials related to Vertigo.
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.
The purpose of this study was to compare the immediate efficacies of each treatment maneuvers in treatment of apogeotropic horizontal canal benign paroxysmal positional vertigo (HC-BPPV).
Accumulation of cerumen in the external ear canal is a common problem. The presence of cerumen not only interferes with the clinician's view of the tympanic membrane, but may also result in hearing loss and vertigo, and may predispose to ear infections. Removal of cerumen is facilitated by the use of a variety of ceruminolytics, or wax solvents. The current study was designed to evaluate the ceruminolytic effects of a single, brief application of the two most frequently used products in the investigators area, containing chlorobutanol or potassium carbonate with or without irrigation in the primary care setting in a randomized, single-blind trial. To our knowledge, this is the first randomized study comparing ceruminolytics with chlorobutanol versus potassium carbonate.
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 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?
Benign Paroxysmal Positional Vertigo (BPPV) is a common complaint of emergency department patients. The importance of early diagnosis and treatment can lead to a much improved quality of life for patients afflicted by this ailment. It is the purpose of this study to evaluate and examine two methods of treatment. Patients will be randomized to receive the more common conventional medication therapy versus the canalith repositioning technique. All patients enrolled into this study are emergency department patients who have been diagnosed with BPPV via a positive Dix-Hallpike Maneuver. The hypothesis of this study is that vestibular rehabilitation will allow for resolution of symptoms without the use of conventional medication therapy in the acute management of BPPV in the emergency department patient.
The purpose of this study is to determine the potential usefulness of new functional MRI in diagnostic assessment of patients presenting with vertigo.
The purpose of this study is to develop effective exercise intervention to reduce dizziness and fall risk in older adults with non-specific dizziness. We hypothesize that the use of vestibular exercises can reduce dizziness and improve gaze and postural stability in older persons.
The purpose of this study is to see whether family doctors can treat benign paroxysmal positional vertigo (BPPV), or dizziness, using a procedure in the office. The study is looking at whether the treatment procedure cures the dizziness in more patients compared to patients that receive a "sham" or placebo procedure.
The purpose of this study was to determine the relative short- and long-term efficacy of several physical treatment paradigms commonly employed for the treatment of benign paroxysmal positional vertigo (BPPV), including the canalith repositioning (Epley) maneuver, the liberatory (Semont) maneuver, the Brandt-Daroff exercises and nonspecific vestibular habituation exercises. These procedures involve exercises and head manipulations. Vertigo intensity and frequency, the presence/absence of slow-phase eye movements, the degree of dizziness handicap and acts of daily living (ADL) were assessed. The study also ascertained the effects of co-morbid conditions on the response to treatment. While BPPV is a common and significant public health problem that has been recognized for several decades, this is the first systematic study of the relative treatment efficacy of different physical treatment modalities for this disorder.