Results 11 to 20 of about 112,129 (137)

A Case of Acquired Pars Flaccida Cholesteatoma Extending to the Supralabyrinthine Petrous Apex With Preservation of the Otic Capsule. [PDF]

Case Rep Otolaryngol
Background Supralabyrinthine petrous bone cholesteatoma is a rare subtype in which hearing preservation may be achievable depending on the anatomical extent and surgical approach. Appropriate selection of surgical strategy is essential. Case Presentation A 31‐year‐old man presented with a 2‐year history of persistent left otorrhea.
Sugimoto H, Inaba M, Nagasaki G, Yoshizaki T.   +3 more
europepmc   +2 more sources

New model of superior semicircular canal dehiscence with reversible diagnostic findings characteristic of patients with the disorder

Frontiers in Neurology, 2023
BackgroundThird window syndrome is a vestibular-cochlear disorder in humans in which a third mobile window of the otic capsule creates changes to the flow of sound pressure energy through the perilymph/endolymph.
P. Ashley Wackym, P. Ashley Wackym, Carey D. Balaban, Olivia J. Van Osch, Brian T. Morris, Mark-Avery Tamakloe, Victoria L. Salvatore, Sudan Duwadi, Jennifer D. Gay, Todd M. Mowery, Todd M. Mowery   +10 more
doaj   +1 more source

Characteristics of the Facial Canal-Lateral Canal Dehiscence: The Under-recognized Third Window. [PDF]

OTO Open
Abstract Objective We aimed to establish normative data on the bony partition between the facial canal (FC) and the lateral semicircular canal (LSCC) and present our initial series of cases in which an FC‐LSCC dehiscence was identified based on these anatomic criteria, with or without other third window pathologies.
Garvis WJ, Johnson BA, Kluesner KE, Garvis SM.   +3 more
europepmc   +2 more sources

Otic Capsule Dehiscence Syndrome: Superior Semicircular Canal Dehiscence Syndrome with no Radiographically Visible Dehiscence

Ear, Nose & Throat Journal, 2015
We conducted a prospective longitudinal study of two cohorts of patients who had superior semicircular canal dehiscence syndrome (SSCDS); one group had radiographically confirmed superior canal dehiscence (SCD), and the other exhibited no identified otic capsule dehiscence on imaging (no-iOCD).
P Ashley, Wackym, Scott J, Wood, David A, Siker, Dale M, Carter   +3 more
openaire   +2 more sources

AKT signaling mediates IGF-I survival actions on otic neural progenitors [PDF]

, 2012
Background: Otic neurons and sensory cells derive from common progenitors whose transition into mature cells requires the coordination of cell survival, proliferation and differentiation programmes.
Sanchez-Calderon, Hortensia, Marta Magariños, Leon, Yolanda, Maria R Aburto, Maria R. Aburto (186884), Varela-Nieto, Isabel, Yolanda Leon (5649538), Leon Yolanda, Yolanda Leon, Rodriguez Aburto, Maria, Magariños Marta, Hortensia Sanchez-Calderon, Hortensia Sanchez-Calderon (186893), Isabel Varela-Nieto (186892), Marta Magariños (186888), Aburto Maria R., Isabel Varela-Nieto, Varela-Nieto Isabel, Sanchez-Calderon Hortensia, Magariños, Marta   +19 more
core   +2 more sources

Facial nerve stimulation outcomes after cochlear implantation with cochlear-facial dehiscence

Otolaryngology Case Reports, 2017
Objectives: To examine the occurrence of facial nerve stimulation (FNS) and outcomes in patients with cochlear-facial dehiscence (CFD) who underwent cochlear implantation (CI).
Christina H. Fang, MD, Sei Y. Chung, BS, Leila J. Mady, MD, PhD, MPH, Nicole Raia, ScD, Huey-Jen Lee, MD, Yu-Lan Mary Ying, MD, Robert W. Jyung, MD   +6 more
doaj   +1 more source

Audiovestibular Quantification in Rare Third Window Disorders in Children

Frontiers in Neurology, 2020
Third window disorders are structural abnormalities in the bony otic capsule that establish a connection between the middle/inner ear or the inner ear/cranial cavity. Investigated extensively in adults, they have hardly been studied in children.
Soumit Dasgupta, Sudhira Ratnayake, Rosa Crunkhorn, Javed Iqbal, Laura Strachan, Shivaram Avula   +5 more
doaj   +1 more source

Prevalence of Cochlear-Facial Nerve Dehiscence and Facial Nerve Stimulation for Adult Cochlear Implant Recipients. [PDF]

Laryngoscope Investig Otolaryngol
This study found that a smaller cochlear‐facial nerve partition width (CFPW) and cochlear‐facial nerve dehiscence (CFD) significantly increase the risk of facial nerve stimulation (FNS) after cochlear implantation. CFD was identified in 3.2% of cases, with 70% of those experiencing FNS. Electrode array type did not significantly impact FNS in CFD cases.
Benaim EH, Canfarotta MW, Richter ME, Dillon MT, Thompson NJ.   +4 more
europepmc   +2 more sources

Identification of Cellular Voids in the Human Otic Capsule

, 2021
The otic capsule consists of dense highly mineralized compact bone. Inner ear osteoprotegerin (OPG) effectively inhibits perilabyrinthine remodeling and otic capsular bone turnover is very low compared to other bone.
Sørensen, Mads Sølvsten, Hansen, Lars Juul, Bloch, Sune Land   +2 more
core   +1 more source

Vestibule-Middle Ear Dehiscence Tested With Perilymph-Specific Protein Cochlin-Tomoprotein (CTP) Detection Test

Frontiers in Neurology, 2019
An 8-year-old boy was referred to the ENT department for further evaluation of right-sided conductive hearing loss. A small cyst anterior to the oval window and fixation of the stapes footplate were observed during an exploratory tympanotomy.
Takeshi Fujita, Takaaki Kobayashi, Kazuya Saito, Toru Seo, Tetsuo Ikezono, Katsumi Doi   +5 more
doaj   +1 more source