نتایج جستجو برای: horizontal canal bppv
تعداد نتایج: 94264 فیلتر نتایج به سال:
OBJECTIVE To determine the incidence, cause, and prevention of horizontal canal benign paroxysmal positional vertigo (H-BPPV) and reentry into the common crus during canalith repositioning procedures (CRPs). STUDY DESIGN Prospective case series. SETTING Academic tertiary referral center. PATIENTS Forty-four patients with symptomatic posterior canalithiasis (P-BPPV) confirmed on Dix-Hallpi...
BACKGROUND AND PURPOSE In contrast to the posterior- and horizontal-canal variants, data on the frequency and therapeutic management of anterior-canal benign paroxysmal positional vertigo (AC-BPPV) are sparse. To synthesize the existing body of evidence into a systematic review regarding the incidence and treatment of AC-BPPV. METHODS Systematic search of medical databases employing predefine...
Benign paroxysmal positional vertigo (BPPV) is the most common cause of recurrent vertigo and has a lifetime prevalence of 2.4% in the general population. Benign paroxysmal positional vertigo is caused when calcium carbonate material originating from the macula of the utricle falls into one of the semicircular canals. Due to their density relative to the endolymph, they move in response to grav...
INTRODUCTION Benign paroxysmal positional vertigo (BPPV), involving the semicircular canals, is one of the most common diseases of the inner ear. The video head impulse test (vHIT) is a new test that examines the function of the canals. This study aimed to investigate the vestibulo-ocular reflex (VOR) gain, gain asymmetry and saccades after stimulating all six canals in patients definitively di...
Vertigo, the illusion of movement oneself or one’s surroundings in absence actual movement, is a common symptom older adults and, as such, commonly regarded an age-related normal part aging process itself, its incidence increases with age. In neurology and otorhinolaryngology, benign paroxysmal positional vertigo (BPPV) most cause vertigo. BPPV brief, recurrent episode caused by changes head po...
The aim of this study was to evaluate the effectiveness of a new technical variant applied to the Gufoni's manoeuvre, in the treatment of horizontal canal benign paroxysmal positional vertigo (HSC-BPPV). 87 patients with BPPV of HSC (55 women and 32 men), aged between 21 and 80 years, were randomized either to modified Gufoni's manoeuvre or to the Gufoni's manoeuvre. 93% of patients treated wit...
OBJECTIVES We studied the demographic, pathogenetic, and clinical features of benign paroxysmal positional vertigo (BPPV) associated with Meniere's disease. METHODS The medical records of patients with BPPV associated with Meniere's disease were reviewed. In all patients, results of a complete otolaryngological, audiological, and neurotologic evaluation, including nystagmography, were availab...
Posterior canal benign paroxysmal positional vertigo (BPPV) is the most frequent form of BPPV. It is characterized by a paroxysmal positioning nystagmus evoked through Dix-Hallpike and Semont positioning tests. Anterior canal BPPV (AC) is more rare than posterior canal BPPV; it presents a prevalent down beating positioning nystagmus, with a torsional component clockwise for the left canal, coun...
Benign paroxysmal positional vertigo of the superior semicircular canal is a rare form of BPPV. It accounts for 1% to 3% of cases. The characteristic nystagmus is positional, down-beating, with a torsional component elicited by the Dix-Hallpike maneuver. Symptoms of superior semicircular canal BPPV often resolve spontaneously; however, it can be refractory to repositioning maneuvers. Surgical m...
Electrophysiological measurement of the eye rotation axis using stimulation a single semicircular canal nerve showed that rotated around perpendicular to plane stimulated canal. Therefore, affected can be identified by analyzing in cases abnormal nystagmus. When main component nystagmus is horizontal, origin lateral torsional, anterior and/or posterior The excitatory quite same as inhibitory ny...
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