Nationwide Prevalence of Video Head Impulse Test Abnormality and its Risk Factors in South Korea.

Objective: To identify the prevalence of and relevant information for video head impulse test (vHIT) abnormality in a large population.

Study Design: A cross-sectional design.

Setting: Korean National Health and Nutrition Examination Survey, 2021.

Vitamin D supplementation in preventing the recurrence of benign paroxysmal positional vertigo.

Objective: To evaluate the effect of vitamin D supplementation on the recurrence rate of benign paroxysmal positional vertigo (BPPV).

Methods: A single-center, prospective, double-blind, placebo-controlled, parallel-group randomized controlled trial was conducted between November 2018 and May 2020. After successful treatment with canalith repositioning maneuvers, patients diagnosed with BPPV were randomized to either the vitamin D ( = 20) or placebo ( = 18) group.

Circulatory disturbance of the cochlear spiral modiolar artery in a type 2 diabetic mouse model.

Objective: This study aimed to identify significant differences in cochlea microvessel size between a diabetic mouse model (db/db) and normal mice using three-dimensional (3D) quantitative analysis.

Methods: Six control heterozygote db/+ as well as 18 male B6/BKS(D)-Lepr/J (db/db) mice aged 14 ( = 9) and 28 ( = 9) weeks were examined. After clearing the cochlea, we reconstructed the 3D volumes of the spiral modiolar artery (SMA) in the cochlea using light-sheet microscopy and analyzed vessel wall thickness, cross-sectional area, short and long diameter, and vessel height.

Saccular Pathology Is Most Commonly Found in Patients With General Vestibular Disorders.

Objectives: The first purpose of this study was to investigate the difference in the frequency of involvement of the superior vestibular nerve (SVN) and inferior vestibular nerve (IVN) territories in general vestibular disorders, and to identify which IVN territory was more commonly involved in patients with IVN lesions. The second purpose was to investigate the correlation of the degree of each saccular and posterior semicircular canal (PSCC) dysfunction, as represented by the parameters of cervical vestibular evoked myogenic potential (cVEMP) and video head impulse test (vHIT), in patients with pathology of the IVN territory.

Methods: In total, 346 patients with dizziness who underwent the caloric test, cVEMP, and vHIT were enrolled.

Recurrence Rate and Risk Factors of Recurrence in Benign Paroxysmal Positional Vertigo: a Single-Center Long-Term Prospective Study With a Large Cohort.

Objective: This study aimed to assess the long-term recurrence rate and correlations between recurrence and potential risk factors in patients with benign paroxysmal positional vertigo (BPPV).

Design: A total of 548 consecutive patients who demonstrated typical posterior or horizontal BPPV between January 2010 and December 2012 were included in this prospective study. All patients were contacted by phone every 6 months for 5 years and were asked to revisit the clinic when they experienced positional vertigo to be reexamined for recurrence.

Clinical Implications of Horizontal Beating Nystagmus Induced by Dix-Hallpike Test in the Diagnosis of Horizontal Canal Benign Paroxysmal Positional Vertigo.

Objectives: The purpose of this study was to identify the diverse patterns of nystagmus during the Dix-Hallpike test (DHT) and analyze their clinical significance in horizontal canal benign paroxysmal positional vertigo (HC-BPPV).

Study Design: Retrospective medical records review.

Patients: Two hundred ninety-five patients diagnosed with HC-BPPV.

Therapeutic efficacy of super-high-dose steroid therapy in patients with profound sudden sensorineural hearing loss: a comparison with conventional steroid therapy.

Background: In patients with sudden sensorineural hearing loss (SSNHL), steroid therapy is an optional treatment method, but there is controversy about its dose.

Objective: We aimed to compare the efficacy of super-high-dose steroid therapy with that of conventional steroid therapy in patients with profound SSNHL (pSSNHL).

Material And Methods: Fifty-two patients diagnosed with pSSNHL between March 2010 and May 2017 were divided into the following groups based on their steroid regimen: a conventional steroid regimen (prednisolone at 1.

Unusual Foreign Body, a Spoon, in the Esophagus of a Middle-Aged Female: A Case Report and Review of the Literature.

In adults, a large metal foreign body in the esophagus is rarely seen and is usually caused accidentally. Here, we have described an unusual case of foreign body (spoon) in the esophagus of an adult patient. A 48-year-old woman initially presented to the emergency department with marked dysphagia, drooling, and radiating pain to the chest.

Double-blind randomized controlled trial on efficacy of cupulolith repositioning maneuver for treatment of apogeotropic horizontal canal benign paroxysmal positional vertigo.

Although various therapeutic maneuvers have been proposed, it is still unclear which maneuver is better to treat apogeotropic horizontal canal benign paroxysmal positional vertigo (HC-BPPV). This study aimed to assess the therapeutic efficacy of the cupulolith repositioning maneuver (CuRM) in apogeotropic HC-BPPV in comparison with the therapeutic head-shaking maneuver and modified Lempert maneuver. This is double-blind randomized prospective study.

Is Early Progression to Bilateral Involvement in Menière's Disease a Poor Prognostic Indicator?

Objective: To investigate differences in the clinical features of bilateral Menière's disease (BMD) with early and late bilateral involvement.

Study Design: A retrospective case-comparison study.

Setting: Tertiary referral center.

Optimal reassessment time for treatment response in posterior canal benign paroxysmal positional vertigo.

Objectives/hypothesis: The present study aimed to evaluate the optimal reassessment time for treatment response in posterior canal benign paroxysmal positional vertigo (PC-BPPV) following the initial Epley maneuver.

Study Design: Prospective, single-blinded, randomized study.

Methods: One hundred eight patients with PC-BPPV agreed to participate.

Progressive hearing loss in vitamin A-deficient mice which may be protected by the activation of cochlear melanocyte.

Vitamin A deficiency (VAD) produces various pathologic phenotypes in humans and animals. However, evidence regarding the effect of VAD on hearing function has been inconsistent. In this study, we evaluated the effect of VAD on hearing function in two mouse models of VAD.

Typical sensory organization test findings and clinical implication in acute vestibular neuritis.

Objective: Sensory organization test (SOT) is used to evaluate postural instability. We wanted to characterize the SOT findings in patients with acute vestibular neuritis (VN).

Methods: Eighty-seven patients with VN were enrolled.

Vibration-induced nystagmus in patients with vestibular schwannoma: Characteristics and clinical implications.

Objective: To investigate the clinical significance of vibration-induced nystagmus (VIN) in unilateral vestibular asymmetry and vestibular schwannoma.

Methods: Thirteen patients with vestibular schwannoma underwent the VIN test, in which stimulation was applied to the mastoid processes and sternocleidomastoid (SCM) muscles on the ipsilateral and contralateral sides of lesions. Preoperative VIN was measured, and changes in VIN were followed up for 6months after tumor removal.

Prevalence of vestibular and balance disorders in children and adolescents according to age: A multi-center study.

Objectives: Children differ from adults in the expression of dizziness symptoms and the causes of dizziness. In several studies, benign paroxysmal vertigo of childhood (BPVC) and vestibular migraine (VM) were seen exclusively in children with vertigo, but the age threshold used to define 'children' varies, and there are few reported studies about adolescents with dizziness. In this study, we investigated the prevalence of vestibular and balance disorders according to age category in a multi-center study (otolaryngology departments of 11 hospitals) of children and adolescents.

Three-point fix tympanoplasty.

Conclusion: The three-point fix tympanoplasty procedure is a stable and effective technique - with a high degree of graft take and satisfactory hearing results - for reconstruction of most tympanic membrane (TM) perforations.

Objective: It is difficult to repair a TM perforation, including subtotal perforation, involving the anterior part of the annulus. Reperforation can occur when an underlay graft technique is used.

A case of labyrinthine fistula by cholesteatoma mimicking lateral canal benign paroxysmal positional vertigo.

Acute peripheral vestibulopathy, of which the chief complaint is positional vertigo, comprises benign paroxysmal positional vertigo (BPPV), labyrinthitis, labyrinthine fistula, and cerebellopontine angle tumors. Since the typical presentation of labyrinthine fistulas may be sensorineural hearing loss, positional vertigo, or disequilibrium, it is often difficult to distinguish from BPPV or Meniere's disease. Herein we report a 61-year-old female patient with typical symptoms and signs attributable to geotropic type variant of the lateral semicircular canal BPPV on the left side, who eventually was confirmed as having a labyrinthine fistula from chronic otitis media with cholesteatoma on the left side.

Benign paroxysmal positional vertigo with simultaneous involvement of multiple semicircular canals.

Background And Objectives: Benign paroxysmal positional vertigo (BPPV) generally involves a single semicircular canal (single canal BPPV) but it has been reported that more than one semicircular canal on either the same or the opposite side can be involved in 6.8-20% of the cases (multiple canal BPPV). In this study, the clinical characteristics of multiple canal BPPV were analyzed and compared to those of single canal BPPV.

A multicenter randomized double-blind study: comparison of the Epley, Semont, and sham maneuvers for the treatment of posterior canal benign paroxysmal positional vertigo.

We evaluated the short-term efficacy of Epley, Semont, and sham maneuvers for resolving posterior canal benign paroxysmal positional vertigo (BPPV) in a prospective multicenter randomized double-blind controlled study. Subjects were randomly divided into three groups: Epley (36 patients), Semont (32 patients), and sham (Epley maneuver for the unaffected side, 31 patients). Out of 14 institutes which participated in this study, 5 institutes had previous experience of the Epley but not the Semont maneuver and the other 9 had previous experience of both maneuvers.

Natural history of horizontal canal benign paroxysmal positional vertigo is truly short.

The objective of the study is to characterize the natural course of positional vertigo and nystagmus in patients with horizontal canal benign paroxysmal positional vertigo (h-BPPV) and to analyze the difference in the natural course between the two variants of h-BPPV. We conducted a prospective study in 106 patients with geotropic type h-BPPV [h-BPPV (Geo)] (n = 43) and apogeotropic type h-BPPV [h-BPPV (Apo)] (n = 63) who agreed and signed the written informed consent of no treatment. All patients were asked to answer a detailed interview about the onset time of positional vertigo and to visit the hospital every 1-3 days.

Persistent spontaneous nystagmus following a canalith repositioning procedure in horizontal semicircular canal benign paroxysmal positional vertigo.

Importance: Nystagmus can occur spontaneously from multiple causes. Direction-changing positional nystagmus on the supine roll test is a characteristic clinical feature in horizontal semicircular canal benign paroxysmal positional vertigo. One of several mechanisms of spontaneous nystagmus is plugging of the otoconia, which has been described as a canalith jam.

Results of caloric and sensory organization testing of dynamic posturography in migrainous vertigo: comparison with Meniere's disease and vestibular neuritis.

Conclusion: Our findings suggest that migrainous vertigo (MV) has a substantial vestibulo-spinal abnormality that can be uncovered by posturography. Patients with MV also showed a difficulty in using multisystem information, especially somatosensory information. Caloric and sensory organization tests (SOTs) have complementary roles in assessing vestibulo-ocular and vestibulo-spinal function, particularly for Meniere's disease (MD) and MV.