Structural connectivity changes in unilateral hearing loss.

Network connectivity, as mapped by the whole brain connectome, plays a crucial role in regulating auditory function. Auditory deprivation such as unilateral hearing loss might alter structural network connectivity; however, these potential alterations are poorly understood. Thirty-seven acoustic neuroma patients with unilateral hearing loss (19 left-sided and 18 right-sided) and 19 healthy controls underwent diffusion-weighted and T1-weighted imaging to assess edge strength, node strength, and global efficiency of the structural connectome.

Effectiveness of vestibular rehabilitation therapy in patients with idiopathic Cerebellar Ataxia with Bilateral Vestibulopathy (iCABV).

Objective: To evaluate the benefit of vestibular rehabilitation therapy (VRT) in the management of patients with idiopathic cerebellar ataxia with bilateral vestibulopathy (iCABV).

Background: iCABV is a hindbrain degenerative disorder with impairment of both central and peripheral vestibular pathways. There is combined failure of four compensatory eye movement systems including the vestibulo-ocular reflex (VOR), optokinetic reflex, smooth pursuit and the visually enhanced vestibulo-ocular reflex (VVOR).

Post-traumatic peripheral vestibular disorders (excluding positional vertigo) in workers following head injury.

Benign paroxysmal positional vertigo has typically been reported to be the most common cause of post-traumatic dizziness. There is however paucity in the literature about other peripheral vestibular disorders post-head injury. This article provides an overview of other causes of non-positional dizziness post-head trauma from our large institutional experience.

Post headshake nystagmus: further correlation with other vestibular test results.

Background: It is generally accepted that headshake nystagmus (HSN) is generated from an asymmetrical peripheral vestibular input and a correlation exists between HSN and canal paresis. There have been limited reports, however, how HSN correlates with the more recently introduced tests of vestibular function.

Aims/objectives: To evaluate the correlation between HSN and unilateral weakness on caloric testing, high-frequency vestibulo-ocular reflex (VOR) function on video head impulse testing (VHIT) and otolith function determined by vestibular evoked myogenic potentials (VEMPs).

Contralesional High-Acceleration Vestibulo-Ocular Reflex Function in Vestibular Schwannoma.

Unlabelled: Impairment of ipsilesional vestibulo-ocular reflex (VOR) function is well described in vestibular schwannoma (VS) and a correlation between gain of the VOR and tumor size has been suggested. Bilateral VOR impairment may also occur in VS patients, but its mechanisms are poorly understood. We sought to explore the effect of unilateral VS on ipsilesional and contralesional high-acceleration VOR function using video head impulse testing, and evaluate potential factors responsible for contralesional VOR impairment.

The Relationship Between Disorders of Bone Metabolism and Benign Paroxysmal Positional Vertigo: A Systematic Review.

Objectives: Several studies have reported an association between benign paroxysmal positional vertigo (BPPV) and bone mineral density or serum vitamin D levels. The aim of this review is to provide further clarification regarding the relationship between BPPV and calcium metabolism.

Design: PubMed and MEDLINE databases were systematically reviewed to identify all English language papers regarding the relationship between BPPV and the following terms: osteoporosis, osteopenia, bone mineral density, serum vitamin D levels, and bone metabolism.

Elevated ocular VEMP responses in the absence of a superior semicircular canal dehiscence.

Background: Vestibular evoked myogenic potentials (VEMPs) have an accepted role in the diagnosis of the superior semicircular canal dehiscence (SSCD) syndrome. The current impression is that ocular VEMPs (oVEMPs) are more sensitive than cervical VEMPs (cVEMPs) for detecting a SSCD and that oVEMP testing in response to air conducted sound provides an excellent screening test without risk of radiation exposure from computerized tomography (CT).

Aims/objectives: To report on patients with elevated oVEMP amplitudes but without evidence for a SSCD on multiplanar CT imaging.

Transient Vertigo with Horizontal Nystagmus to Loud Noise and Pressure: Utricular Hydrops or Vestibular Atelectasis?

We present an unusual case of a patient with a positive Tullio phenomenon, brief Valsalva-induced transient horizontal nystagmus, reduced left caloric response, and bilateral vestibulo-ocular reflex loss. This study discusses the pathophysiology and differential diagnosis concerning the suspected pathology for the phenomenon of utricular hydrops or vestibular atelectasis and presents a literature review.

Long-Term Outcomes from Blind Sac Closure of the External Auditory Canal: Our Institutional Experience in Different Pathologies.

Objectives: This study reports long-term results of blind sac closure of the external auditory canal performed for various pathologies, compares the complication rates and the need for revision surgery.

Materials And Methods: This study is a retrospective review. Ninety-six cases of blind sac closure performed for various pathologies were included in this study.

Management of invasive intralabyrinthine cholesteatoma: Can one realistically preserve hearing when disease is medial to the otic capsule?

Purpose: To report our long-term results in surgical management of invasive intralabyrinthine cholesteatoma.

Material And Methods: The study is a case series in a tertiary referral center. Retrospective chart review of all mastoid operations performed for chronic ear disease between 1994 and 2019 at University Health Network, Toronto.

Occult Laryngeal Foreign Body Mimicking Normal Thyroid Cartilage.

Introduction: Foreign body aspiration is common especially in children. The absence of history of choking does not rule out the diagnosis. Diagnosis required high index of suspicion.

Surgical Outcomes of Cerebellopontine angle Tumors in 50 Cases.

Introduction: To report our experience with a large series of surgical procedures for removal of cerebellopontine angle (CPA) tumors using different approaches.

Materials And Methods: This was a retrospective analysis of 50 patients (mean age, 49 years) with CPA tumors (predominantly acoustic neuroma) who underwent surgical removal using appropriate techniques (principally a translabyrinthine approach) during a 4-year period.

Results: One death occurred during this study.

Photographic facial soft tissue analysis of healthy Iranian young adults: anthropometric and angular measurements.

Background: Soft tissue profile can be widely different in various populations. Furthermore, this profile can be also continues to change throughout life. However, there are few studies that quantitatively evaluate the soft tissue profile in Iranian population.

Effect of Intratympanic Dexamethasone on Controlling Tinnitus and Hearing loss in Meniere's Disease [corrected].

Introduction: We investigated the effect of intratympanic dexamethasone on control of tinnitus and hearing loss in patients with Menier's disease.

Materials And Methods: 100 consecutive patients with a diagnosis of Menier's disease according to the 1995 criteria of The American Academy of Otolaryngology - Head and Neck Surgery (AAO-HNS) who remained symptomatic despite medical therapy were assigned to receive intratympanic dexamethasone. The results were assessed with respect to changes in hearing symptoms and tinnitus.

Myringoplasty using rotation flap of canal skin for total tympanic membrane perforation.

Objective: To evaluate the efficacy of a novel technique of using rotation flap of canal skin in patients with total or subtotal tympanic membrane (TM) perforation with no anterior residual tympanic membrane.

Methods: A retrospective study of 50 patients with total or subtotal perforation repaired with rotation flap of canal skin. Clinical and audiometric data were recorded.

Value of fine-needle aspiration cytology in the evaluation of parotid tumors.

Fine needle aspiration cytology (FNAC) is commonly used in the study of parotid masses; however controversy exists regarding its diagnostic accuracy. The objective of this study was to evaluate the effectiveness of FNAC as a preoperative diagnostic tool of parotid tumors. Sixty-five patients had satisfactory preoperative FNAC and underwent subsequent surgery to the parotid between March 2002 and July 2009 at our institution.

Delayed laryngotracheal reconstruction with titanium plate: report of 10 cases.

Background: Subglottic stenosis is congenital or acquired narrowing of subglottic area. The management of subglottic stenosis is still a serious surgical challenge. Although different surgical techniques are accomplished to manage the condition, no standard treatment has been presented yet.

Repair of large nasal septal perforation with titanium membrane: report of 10 cases.

Objective: The aim of the study was to study a new treatment to repair large nasal septal perforation with medical titanium membrane.

Method: Ten patients with septal perforation underwent repair with open rhinoplasty approach using titanium membrane.

Results: The perforation of nasal septum in 10 patients was closed satisfactorily.

Giant cell reparative granuloma of nasal cavity, a case report.

Giant cell reparative granuloma (GCRG) is an unusual, nonneoplastic lesion affecting maxillary and mandibular bones. GCRG of the nasal cavity is exceedingly rare. To the best of our knowledge only few of such cases have been previously reported.