[Labyrinthitis ossificans].

Labyrinthitis ossificans is a pathology consisting of calcification of the membranous labyrinth resulting in profound sensory deafness. It is usually due to an acute inflammatory process that progresses to ossification of the labyrinth. The clinical manifestations are irreversible hearing loss, dizziness and vomiting.

The Conundrum of Labyrinthitis Ossificans: An Etiology-Based Case Comparison and Review of Literature.

Labyrinthitis ossificans is the formation of pathological new bone within the membranous labyrinth of the inner ear due to various local and systemic pathologies. Most commonly it occurs as a sequelae of meningitis spreading to the labyrinth, from the subarachnoid space via the cochlear aqueduct and the internal auditory canal. We are comparing three different etiological presentations of labyrinthitis ossificans; namely, tympanogenic, meningitic, and traumatic, together with their management in the light of recent advances.

Pneumococcal Meningitis Induces Hearing Loss and Cochlear Ossification Modulated by Chemokine Receptors CX3CR1 and CCR2.

Purpose: Pneumococcal meningitis is a major cause of hearing loss and permanent neurological impairment despite widely available antimicrobial therapies to control infection. Methods to improve hearing outcomes for those who survive bacterial meningitis remains elusive. We used a mouse model of pneumococcal meningitis to evaluate the impact of mononuclear phagocytes on hearing outcomes and cochlear ossification by altering the expression of CX3CR1 and CCR2 in these infected mice.

Labyrinthitis Ossificans in a Post-Splenectomy Patient With Meningitis: A Case Report and Review of Literature.

This report describes a case of cochlear implantation to treat profound deafness three months after a diagnosis of bacterial meningitis in a patient with a remote history of splenectomy. A 71-year-old woman with a remote history of a splenectomy over 20 years before presented with bilateral profound deafness that occurred as sequela from pneumococcal meningitis three months prior. The patient had been vaccinated against the 23-valent polysaccharide pneumococcal vaccine (PPV-23).

Cochlear implantation through intracochlear fibrosis: A comparison of surgical techniques.

Objective: While the implications of ossification on cochlear implantation (CI) have been extensively described, there is a paucity of data regarding the fibrotic stage. We examined the outcomes of different insertion techniques for managing intracochlear fibrosis.

Study Design: Retrospective review of case series with case-control comparison.

Managing the Destructive Foreign Body: Water Beads in the Ear (A Case Series) and Literature Review.

Objective: To characterize our experience with super-absorbent polymer beads placed in the external auditory canal to better understand the damage caused and subsequent management required.

Methods: Retrospective chart review of pediatric patients at 2 separate tertiary referral centers.

Results: Seven patients were identified as having placed super-absorbent polymer beads in the external auditory canal, 6 of whom required removal under general anesthesia.

Correlation of Preoperative High-resolution Computed Tomography Temporal Bone Findings with Intra-operative Findings in Various Ear Pathologies.

High resolution computed tomography (HRCT) is a tool which provide fine details of temporal bone and its associated pathologies which are of extreme use in making diagnosis, to evaluate extension of disease and most important to plan surgical approach. Aim of the present study was to correlate HRCT findings with operative findings in different ear pathologies. This observational, prospective study enrolled 70 patients of different ear pathologies required surgical intervention.

Inner ear modifications in Dar-es-Soltane II H5 (Morocco): A case of labyrinthitis ossificans.

Objective: This paper presents the inner ear modifications in Dar-es-Soltane II H5, an Aterian fossil possibly dated to 100 ka.

Material: The remains consist of a large portion of the cranium including the face, the left frontal and temporal bones, part of the left parietal bone and greater wing of the sphenoid.

Methods: The bony labyrinth anatomy was investigated on existing micro-CT data acquired by the MPI-EVA.

Labyrinthitis ossificans following severe acute otitis media.

Labyrinthitis occurs because of the inflammation of the inner ear. We present a rare case of labyrinthitis ossificans following an acute otitis media. The T2-weighted magnetic resonance imaging showed decreased signal intensity in the right inner ear due to labyrinthitis ossificans, consistent with the clinical presentation.

Effects of different electrodes used in bone-guided extracochlear implants on electrical stimulation of auditory nerves in guinea pigs.

Objective: Conventional cochlear implants provide patients who are deaf with hearing via electrical intracochlear stimulations. Stimulation electrodes are inserted into the cochlea through a cochleostomy or round window membrane (RWM) approach. However, these methods might induce cochlear ossificans and loss of residual hearing by damaging inner ear structures.