Dealing with transmission of pressure to the inner ear through palpation of the wound following transmastoid superior semicircular canal obliteration

2020 ◽  
Vol 45 (4) ◽  
pp. 656-658
Author(s):  
Georgios Kontorinis
Keyword(s):  
Inner Ear ◽  
Semicircular Canal ◽  
Superior Semicircular Canal

scholarly journals A Third Labyrinthine Window: An Overview of Perilymph and Labyrinthine Fistulae and Superior Semicircular Canal Dehiscence

2012 ◽  
Vol 4 (2) ◽  
pp. 100-105 ◽  
Keyword(s):  
Inner Ear ◽  
Semicircular Canal ◽  
Membranous Labyrinth ◽  
Superior Semicircular Canal Dehiscence ◽  
Bony Labyrinth ◽  
Superior Semicircular Canal ◽  
Inner Ear Fluids ◽  
Canal Dehiscence

ABSTRACT The membranous labyrinth is contained within the bony labyrinth and surrounded by perilymph. The only two ‘potentially yielding’ parts of the otherwise solid bony labyrinth are the oval and round windows, which by their relative movements, pressure differentials and resilience are responsible for all the functions attributed to the inner ear. In pathologies, such as trauma, infection or occasionally congenital dehiscence, there may develop a ‘third window’ that may serve as an abnormal communication for the inner ear fluids and manifest with audiovestibular symptoms. Three such distinct entities have been identified, namely ‘superior semicircular canal dehiscence syndrome, perilymphatic fistulae and labyrinthine fistulae’. This overview intends to discuss these above-mentioned entities, as regards their characteristic presentations and principles of management. How to cite this article Hathiram BT, Khattar VS. A Third Labyrinthine Window: An Overview of Perilymph and Labyrinthine Fistulae and Superior Semicircular Canal Dehiscence. Otorhinolaryngol Clin Int J 2012;4(2):100-105.

Incidence of Pediatric Superior Semicircular Canal Dehiscence and Inner Ear Anomalies

2016 ◽  
Vol 37 (9) ◽  
pp. 1370-1375 ◽  
Author(s):  
Eric M. Sugihara ◽  
Seilesh C. Babu ◽  
Dennis J. Kitsko ◽  
Michael S. Haupert ◽  
Prasad J. Thottam
Keyword(s):  
Inner Ear ◽  
Semicircular Canal ◽  
Superior Semicircular Canal Dehiscence ◽  
Superior Semicircular Canal ◽  
Ear Anomalies ◽  
Canal Dehiscence

scholarly journals Measurements of Human Middle- and Inner-Ear Mechanics With Dehiscence of the Superior Semicircular Canal

2007 ◽  
Vol 28 (2) ◽  
pp. 250-257 ◽  
Author(s):  
Wade Chien ◽  
Michael E. Ravicz ◽  
John J. Rosowski ◽  
Saumil N. Merchant
Keyword(s):  
Inner Ear ◽  
Semicircular Canal ◽  
Superior Semicircular Canal

Electrocochleography: New Uses for an Old Test and Normative Values

2019 ◽  
Vol 28 (3S) ◽  
pp. 783-795 ◽  
Author(s):  
John A. Ferraro ◽  
Paul R. Kileny ◽  
Signe S. Grasel
Keyword(s):  
Inner Ear ◽  
Tympanic Membrane ◽  
Case Studies ◽  
Semicircular Canal ◽  
Small Sample ◽  
Normative Values ◽  
Superior Semicircular Canal Dehiscence ◽  
Superior Semicircular Canal ◽  
The Status ◽  
Canal Dehiscence

Purpose This article combines the results of 3 studies that were presented at the HeAL 2018 Conference in Lake Como, Italy, in June 2018. Each study involved electrocochleography (ECochG), a neurodiagnostic evaluation that has been used clinically for over 80 years but whose applications continue to expand. The 1st study describes recent research wherein ECochG was recorded from asymptomatic subjects who were siblings or offspring of patients with a confirmed diagnosis of Ménière's disease (MD). Our results provide evidence that ECochG may be helpful in not only diagnosing MD but also predicting it as well. Second, case studies are described where ECochG was important in both diagnosing superior semicircular canal dehiscence and monitoring the repair of this condition during surgery. Finally, although ECochG has been practiced clinically for over 8 decades, the protocols for recording, measuring, and interpreting the electrocochleogram continue to lack standardization among clinicians and scientists. We thus present normative data for some of these features based on noninvasive recordings made from the tympanic membrane from 100 normal hearing subjects. Conclusions Although the primary use of ECochG continues to be in the diagnosis of MD, we report on 2 additional clinical applications for this important test of inner ear/auditory nerve function. First, a preliminary study on a small sample of subjects indicates that ECochG may also be useful in predicting MD prior to the onset of symptoms in individuals who may be genetically predisposed to developing it. Second, through a series of case studies, we demonstrate how ECochG is used to help diagnose superior semicircular canal dehiscence and monitor the status of the inner ear during the surgical repair of this condition. Finally, normative values for clinically important components of the electrocochleogram based on tympanic membrane recordings have been established from a large sample of subjects.

Clinical Outcomes of Middle Fossa Craniotomy for Superior Semicircular Canal Dehiscence Repair

2015 ◽  
Vol 76 (S 01) ◽  
Author(s):  
Lawrance Chung ◽  
Nolan Ung ◽  
Daniel Nagasawa ◽  
Panayiotis Pelargos ◽  
Kimberly Thill ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Semicircular Canal ◽  
Middle Fossa ◽  
Superior Semicircular Canal Dehiscence ◽  
Superior Semicircular Canal ◽  
Canal Dehiscence
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