scholarly journals The effect of middle ear cavity and superior canal dehiscence on wideband acoustic immittance in fresh human cadaveric specimens

2018 ◽  
Author(s):  
Salwa F. Masud ◽  
Stefan Raufer ◽  
Stephen T. Neely ◽  
Hideko H. Nakajima
Keyword(s):  
Middle Ear ◽  
Superior Canal Dehiscence ◽  
Canal Dehiscence

Dehiscence of Bone Overlying the Superior Semicircular Canal as a Cause of an Air-Bone Gap on Audiometry

2003 ◽  
Vol 12 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Kenneth M. Cox ◽  
Daniel J. Lee ◽  
John P. Carey ◽  
Lloyd B. Minor
Keyword(s):  
Hearing Loss ◽  
High Resolution ◽  
Middle Ear ◽  
Semicircular Canal ◽  
Conductive Hearing Loss ◽  
Superior Canal Dehiscence ◽  
High Resolution Ct ◽  
Temporal Bones ◽  
Conductive Hearing ◽  
Canal Dehiscence

Dehiscence of bone overlying the superior semicircular canal can result in a syndrome of vertigo and oscillopsia induced by loud noises or by maneuvers that change middle ear or intracranial pressure. Patients with this disorder can also experience a heightened sensitivity to bone-conducted sounds in the presence of normal middle ear function. High-resolution CT scans of the temporal bones demonstrate the dehiscence. The authors describe a patient with bilateral superior canal dehiscence who had bilateral low-frequency conductive hearing loss, normal middle ear function, intact acoustic reflexes, and intact vestibular-evoked myogenic potentials. These findings would not be expected on the basis of a middle ear cause of the conductive hearing loss. A high-resolution CT scan of the temporal bones in this patient revealed bilateral superior canal dehiscence. Normal acoustic immittance findings in the presence of conductive hearing loss should alert clinicians to the possibility of inner ear cause of an air-bone gap due to superior canal dehiscence

scholarly journals Second-Side Surgery in Superior Canal Dehiscence Syndrome

2012 ◽  
Vol 33 (1) ◽  
pp. 72-77 ◽  
Author(s):  
Yuri Agrawal ◽  
Lloyd B. Minor ◽  
Michael C. Schubert ◽  
Kristen L. Janky ◽  
Marcela Davalos-Bichara ◽  
...  
Keyword(s):  
Superior Canal Dehiscence ◽  
Canal Dehiscence

scholarly journals A Case of Superior Canal Dehiscence Syndrome

2013 ◽  
Vol 137 (0) ◽  
pp. 10-11
Author(s):  
Kiyoko Fujimori ◽  
Naoki Saka ◽  
Toru Seo ◽  
Shigeto Ota ◽  
Masafumi Sakagami
Keyword(s):  
Superior Canal Dehiscence ◽  
Canal Dehiscence

Acoustic Responses of Vestibular Afferents in a Model of Superior Canal Dehiscence

2004 ◽  
Vol 25 (3) ◽  
pp. 345-352 ◽  
Author(s):  
John P. Carey ◽  
Timo P. Hirvonen ◽  
Timothy E. Hullar ◽  
Lloyd B. Minor
Keyword(s):  
Superior Canal Dehiscence ◽  
Vestibular Afferents ◽  
Acoustic Responses ◽  
Canal Dehiscence

High Computed Tomographic Correlations between Carotid Canal Dehiscence and High Jugular Bulb in the Middle Ear

2011 ◽  
Vol 16 (2) ◽  
pp. 106-112 ◽  
Author(s):  
Chih-Hung Wang ◽  
Zheng-Ping Shi ◽  
Dai-Wei Liu ◽  
Hsing-Won Wang ◽  
Bor-Rong Huang ◽  
...  
Keyword(s):  
Middle Ear ◽  
Jugular Bulb ◽  
Computed Tomographic ◽  
Carotid Canal ◽  
High Jugular Bulb ◽  
Canal Dehiscence

scholarly journals Patients’ experiences of living with superior canal dehiscence syndrome

2018 ◽  
Vol 57 (11) ◽  
pp. 825-830
Author(s):  
Jenny Öhman ◽  
Annika Forssén ◽  
Anette Sörlin ◽  
Krister Tano
Keyword(s):  
Superior Canal Dehiscence ◽  
Canal Dehiscence

scholarly journals Perilymph Fistula: Fifty Years of Controversy

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Jeremy Hornibrook
Keyword(s):  
Head Trauma ◽  
Local Anaesthetic ◽  
Diagnostic Tests ◽  
Round Window ◽  
Trauma History ◽  
Superior Canal Dehiscence ◽  
Natural Tissue ◽  
Balance Problems ◽  
Emotional Issue ◽  
Canal Dehiscence

Perilymph fistula (PLF) is defined as a leak of perilymph at the oval or round window. It excludes other conditions with “fistula” tests due to a dehiscent semi circular canal from cholesteatoma and the superior canal dehiscence syndrome. It was first recognized in the early days of stapedectomy as causing disequilibrium and balance problems before sealing of the stapedectomy with natural tissue became routine. It then became apparent that head trauma and barotraumatic trauma from flying or diving could be a cause of PLF. Descriptions of “spontaneous” PLF with no trauma history followed. A large literature on PLF from all causes accumulated. It became an almost emotional issue in Otolaryngology with “believers” and “nonbelievers.” The main criticisms are a lack of reliable symptoms and diagnostic tests and operative traps in reliably distinguishing a perilymph leak from local anaesthetic. There are extensive reviews on the whole topic, invariably conveying the authors' own experiences and their confirmed views on various aspects. However, a close examination reveals a disparity of definitions and assumptions on symptoms, particularly, vestibular. This is an intentionally provocative paper with suggestions on where some progress might be made.

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