Results 121 to 130 of about 393 (152)
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Analysis of 30 patients with cupulolithiasis of the posterior semicircular canal
European Archives of Oto-Rhino-Laryngology, 2022The diagnostic characteristics of patients with cupulolithiasis of the posterior semicircular canal are persistent torsional nystagmus in the supine position and persistent torsional nystagmus (opposite direction) in the nose-down position, which are caused by the affected canal becoming gravity sensitive.To investigate the clinical features of ...
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Posterior semicircular canal occlusion in the normal hearing ear
Otolaryngology–Head and Neck Surgery, 1991This report outlines our experience with posterior semicircular canal occlusion, a new operative procedure for intractable benign paroxysmal positional vertigo (BPPV). We postulate that the resulting solid canal “plug” prevents endolymph movement within the posterior canal, which effectively fixes the cupula.
L S, Parnes, J A, McClure
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Children with posterior semicircular canal dehiscence: A case series
International Journal of Pediatric Otorhinolaryngology, 2019Posterior semicircular canal dehiscence is a rare condition and can cause a variety of symptoms. We report three cases of children between 5 and 12 years of age with a PSCD. They all presented with different complaints as follows: Tullio phenomenon in the first case, conductive hearing loss in the second and, conductive hearing loss and pulsatile ...
Pauline, Van Bulck +2 more
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A third window of the posterior semicircular canal: An animal model
The Laryngoscope, 2010AbstractObjectives/Hypothesis:A third window in the vestibular apparatus has been investigated in both animals and humans, specifically in superior semicircular canal dehiscence. There are as yet no animal model studies of the effect of a third vestibular window of the posterior semicircular canal.Study Design:Original basic research study.Methods:A ...
Ben I, Nageris +4 more
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Posterior Semicircular Canal Dehiscence: Case Series and Systematic Review
Otology & Neurotology, 2020Objective:To conduct a systematic review of posterior semicircular canal dehiscence (PSCD) and to present a series of patients with PSCD with and without classic third-window symptoms.Data Sources:PubMed, Scopus, and the Cochrane Library from inception until April 2019.
Joshua A, Lee +5 more
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Enhanced Retrosigmoid Exposure with Posterior Semicircular Canal Resection
Otolaryngology–Head and Neck Surgery, 1996A subset of patients with acoustic neuromas and useful hearing have tumors that are inadequately approached by both middle fossa and retrosigmoid techniques. The enhanced retrosigmoid technique combines the hearing preservation of posterior semicircular canal ablation to achieve lateral internal auditory canal exposure with the ample cerebellopontine ...
M, Arriaga, M, Gorum
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Posterior semicircular canal nystagmus is conjugate and its axis is parallel to that of the canal
Neurology, 2000A patient with a postoperative fistula of the left posterior semicircular canal is presented. Negative pressure in the external ear canal produced upbeat-torsional nystagmus, which was recorded in three dimensions using binocular scleral search coils. The nystagmus was conjugate, without skew deviation, and its trajectory corresponded to the anatomic ...
P D, Cremer +6 more
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Posterior semicircular canal dehiscence secondary to jugular enlargement
American Journal of Otolaryngology, 2016Semicircular canal dehiscence is an important entity often presenting with symptoms of noise or pressure induced vertigo, autophony, aural fullness and conductive hearing loss. Due to its varied presentation and mimic of other otologic conditions its consideration is of increased importance. Within we report a case of right sided posterior semicircular
Christopher A, Schutt, John F, Kveton
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Action potentials in the nerve from the posterior semicircular canal of the cat
Canadian Journal of Physiology and Pharmacology, 1968A method is described to implant electrodes for recording the electrical activity in the branch of the vestibular nerve from the posterior semicircular canal of the cat. A tungsten electrode eroded to a point is inserted into the nerve through the internal auditory meatus and held in position with dental cement.
L M, Smith, K C, Marshall, J W, Scott
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Quantification of hearing loss in patients with posterior semicircular canal dehiscence
Acta Oto-Laryngologica, 2015Patients with posterior semicircular canal dehiscence (PSCD) have low frequency conductive hearing loss similar to patients with superior semicircular canal dehiscence (SSCD) secondary to a pathologic third window.PSCD can result in conductive hearing loss, but the magnitude of this hearing loss remains to be quantified.
Zachary W, Bear +2 more
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