Automated hearing loss type classification based on pure tone audiometry data.

Hearing problems are commonly diagnosed with the use of tonal audiometry, which measures a patient's hearing threshold in both air and bone conduction at various frequencies. Results of audiometry tests, usually represented graphically in the form of an audiogram, need to be interpreted by a professional audiologist in order to determine the exact type of hearing loss and administer proper treatment. However, the small number of professionals in the field can severely delay proper diagnosis.

Efficacy and Safety of Intranasal Betahistine in the Treatment of Surgery-Induced Acute Vestibular Syndrome: A Double-Blind, Randomized, Placebo-Controlled Phase 2 Study.

Objective: To evaluate the safety and efficacy of AM-125 nasal spray (intranasal betahistine) in the treatment of surgery-induced acute vestibular syndrome (AVS).

Study Design: Prospective, double-blind, randomized, placebo-controlled exploratory phase 2 study with dose escalation (part A) followed by parallel dose testing (part B); open-label oral treatment for reference.

Setting: Twelve European study sites (tertiary referral centers).

Numerical analysis of the ostiomeatal complex aeration using the CFD method.

We aimed to analyse ostiomeatal complex (OMC) aeration using the computational fluid dynamics (CFD) method of simulation based on human craniofacial computed tomography (CT) scans. The analysis was based on CT images of 2 patients: one with normal nose anatomy and one with nasal septal deviation (NSD). The Reynolds-Average Simulation approach and turbulence model based on linear eddy viscosity supplemented with the two-equation k-[Formula: see text] SST model were used for the CFD simulation.

Cardiovascular testing of seasickness in healthy volunteers on life rafts.

Objectives: The role of the cardiovascular system in the development of seasickness remains uncertain.

Material And Methods: Overall, 18 healthy students (10 males and 8 females) aged 18-24 years volunteered in the project, spending 2-7 h on life rafts. The cardiovascular system was examined with impedance cardiography.

Influence of stimulus presentation rate on intraoperative ECAP thresholds in cochlear implant users.

Objective: The objective is to evaluate the influence of the presentation rate on intraoperative ECAP thresholds in cochlear implant users.

Design: The design was data on the ECAP thresholds (t-NRT) as well as the behavioural T- and C-levels have been collected in CI patients of a quaternary otologic referral centre. Measurements of the tNRT thresholds were performed intraoperatively for 250 Hz and 80 Hz presentation rates and correlated to the stabilised T- and C-levels measured at the 5th fitting session, 4-6 months after surgery.

Hearing loss in patients with extracranial complications of chronic otitis media.

Objective: A pure tone audiomety analysis of patients with extracranial complications of chronic suppurative otitis media (ECCSOM).

Material And Methods: We retrospectively analyzed audiometric data performed before treatment from 63 patients with ECCSOM (56 single, 7 multiple complications) including groups of frequencies.

Results: The greatest levels of hearing loss were noted for 6 and 8 kHz (79.

Is the Keros classification alone enough to identify patients with the 'dangerous ethmoid'? An anatomical study.

Conclusion: By means of three-dimensional display of the critical measurements, the authors suggest a novel definition of 'dangerous ethmoid'. Parallel to Keros type III, the proposed determining factors include: olfactory fossa width >6 mm, its distance to the medial nasal concha (turbinate) <20 mm and to the orbit interval of <10 mm. Clinical evaluation of these preliminary criteria based only on radiological data is required and underway.

Possibilities of spatial hearing testing in occupational medicine.

Dysfunctions of the organ of hearing are a significant limitation in the performance of occupations that require its full efficiency (vehicle driving, army, police, fire brigades, mining). Hearing impairment is associated with poorer understanding of speech and disturbed sound localization that directly affects the worker's orientation in space and his/her assessment of distance and location of other workers or, even most importantly, of dangerous machines. Testing sound location abilities is not a standard procedure, even in highly specialized audiological examining rooms.

Hypertension is associated with dysfunction of both peripheral and central auditory system.

Objectives: Arterial hypertension negatively influences the peripheral auditory system, causing sensorineural hearing loss. Much less is known about the detrimental effects of hypertension on the central auditory functions.

Methods: We tested 32 arterial hypertension patients and 32 age and sex-matched healthy volunteers with the expanded tonal audiometry (0.

Auditory spatial deficits in brainstem disorders.

Purpose: Brainstem disorders seem to negatively influence the central auditory system, causing spatial hearing deficits.

Material And Methods: We tested 11 patients with brainstem lesions due to ischemic stroke (IS), multiple sclerosis (MS), or cerebellopontine angle tumor (CPAT) together with 50 age- and sex-matched healthy volunteers. We used pure tone audiometry (PTAud), brainstem auditory evoked potentials (BAEPs) and the horizontal minimum audible angle test (HMAAT) for 8 azimuths with binaural stimulation.

Auditory deficits in neurological disorders.

Neurological diseases present with diverse and often complex symptomatology. Focal neurological signs such as paresis, aphasia or visual field deficits together with often serious general state of a neurological patient usually push auditory symptoms into the background. Here, we present a review of literature on central and peripheral auditory disturbances that can appear in the course of most common neurological diseases.

Auditory Spatial Deficits in the Early Stage of Ischemic Cerebral Stroke.

Background: Clinical research, together with computed tomography/magnetic resonance imaging findings, proves that ischemic stroke (IS) that damages auditory pathways can cause hearing loss and impairment of higher auditory processes such as sound localization. The goal of the study was to find possible correlations between the IS risk factors, ischemic lesion volume and localization, neurologic status, and the sound localization capability in acute IS patients.

Methods: We consecutively enrolled 61 IS patients into the study.

Hypertension and cochlear hearing loss.

This paper presents a review of experimental and clinical research on the contribution of hypertension to cochlear hearing loss. Hypertension is one of the crucial risk factors underlying pathophysiological processes taking place in the cochlea. Several mechanisms explaining these processes have been described, mainly in animal models, such as the disturbance of the inner ear potassium recycling process due to the detrimental action of natriuretic hormone, and the decrease in the cochlear oxygen partial pressure.

[Treatment results of otosclerosis regarding different types of prosthesis].

Unlabelled: Surgery is the most effective method of improving hearing in patients with otosclerosis. The level of improvement depends on the stage of the disease and the chosen surgical method.

The Aim Of This Study: is to present hearing results in patients treated surgically by means of different types of prostheses and methods of vestibule sealing.

[Major salivary gland disorders in children and adolescents].

The aim of this study was a review of 67 children treated for salivary gland tumors in the ENT Department Medical University of Gdańsk since 1974 to 2008. In that group we observed 52 children with tumor of the parotid gland, 13 with tumor of submandibular gland and 2 with subligual gland tumors. Tumor-like lesions were stated the largest group of tumors and were observed in 33 (49%) of children, mainly of chronic sialadenitis (17 cases).

[Nonchromaffin paragangliomas (chemodectoma) of the middle ear in the material of the ENT Department Medical University of Gdańsk].

Introduction: Nonchromaffin paraganglioma (chemodectoma) is the most common neoplasm of the middle ear. The diagnosis and treatment is one of the most challenging in otolaryngology.

The Aim Of The Study: was clinical and epidemiological analysis of patients with nonchromaffin paraganglioma of the middle ear.

[Osteomas and exostoses of external auditory canal in material of Otolaryngology Department Medical University of Gdańsk].

Introduction: Osteomas and exostoses of the external auditory canal are benign tumours arising in bones, leading to its obstruction and causing hearing loss. The treatment of these entities may present a therapeutic dilemma.

Aim Of The Study: To assess epidemiological and clinical data and surgical treatment effectiveness.

Risk factors of sensorineural hearing loss in patients with ischemic stroke.

Objectives: We investigated risk factors of sensorineural hearing loss (SHL) in patients with early stage of ischemic stroke (IS).

Methods: Our study consisted of 60 patients with IS who were treated at Department of Neurology, Medical University of Gdansk between 2006 and 2007. A multivariate stepwise linear regression was used to identify the risk factors that were related to SHL as measured by pure-tone average (0.

[Sigmoid sinus thrombosis in 5-year old child with acute otitis media and acquired CMV infection].

Cytomegalovirus (CMV) belongs to Herpesvirida family and it occurs quite frequently in the human environment. It is a very important pathogen in persons with suppressed or lowered resistance. Having special kindship with epithelium, it may cause primary infection or reveal secondary influence in the latent form.

Otitic hydrocephalus associated with lateral sinus thrombosis and acute mastoiditis in children.

The incidence of intracranial complications of acute otitis media (AOM) has decreased and the need for operative and medical treatment is declined during the antibiotic era. To describe pathognomonic signs, evaluation management, operative findings, clinical course and outcome of otitic hydrocephalus and lateral sinus thrombosis as complications of AOM and mastoiditis in pediatric patients. Two children, 9 and 13 years old, with the diagnosis of OH and TK and MRI findings are presented.