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Audiol. Res., Volume 6, Issue 1 (April 2016) – 6 articles

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574 KiB

Open AccessReview

Endothelial Dysfunction in Idiopathic Sudden Sensorineural Hearing Loss: A Review

by Nicola Quaranta, Vincenzo De Ceglie and Alessandra D’Elia

Audiol. Res. 2016, 6(1), 151; https://doi.org/10.4081/audiores.2016.151 - 27 Jul 2016

Cited by 38 | Viewed by 1108

Abstract

An endothelial dysfunction has been described in idiopathic sudden sensorineural hearing loss (ISSHL) patients. The purpose of our review was to: i) identify, evaluate and review recent research about cardiovascular risk factors involvement and signs of endothelial dysfunction in ISSHL; ii) implication of these discovering in clinical practice and future research. A Medline literature search was conducted to identify any study on the involvement of endothelial dysfunction in ISSHL, published in the English language in the last decade. The following MEDLINE search terms were used: sudden sensorineural hearing loss (SSHL) and endothelial dysfunction (text words). Additional studies were identified by hand searching the references of original articles and review articles. Studies were not excluded on the basis of the qualitative or quantitative definitions of SSHL, treatment regimens, or outcome measures. Data were extracted from included papers by a reviewer. Information on the patients, investigations, methods, interventions, and outcomes were systematically analyzed. Characteristics and results of all included studies were reviewed systematically. High levels of adhesion molecules, hyperhomocysteinemia and lower folate levels, unbalanced oxidative status, a lower value of flow-mediated dilatation of brachial artery and a reduced percentage of circulating endothelial progenitor cells in patients affected by ISSHL support the hypothesis that this syndrome should be considered as a microcirculation disorder based on endothelial dysfunction and drive clinicians to implement all the traditional strategies used for preventing cardiovascular events, to also reduce the likelihood of ISSHL occurrence. Full article

701 KiB

Open AccessArticle

Translation and Adaptation of Five English Language Self-Report Health Measures to South Indian Kannada Language

by Spoorthi Thammaiah, Vinaya Manchaiah, Vijayalakshmi Easwar and Rajalakshmi Krishna

Audiol. Res. 2016, 6(1), 153; https://doi.org/10.4081/audiores.2016.153 - 23 Jun 2016

Cited by 23 | Viewed by 1294

Abstract

The objective of this study was to translate and adapt five English self-report health measures to a South Indian language Kannada. Currently, no systematically developed questionnaires assessing hearing rehabilitation outcomes are available for clinical or research use in Kannada. The questionnaires included for translation and adaptation were the hearing handicap questionnaire, the international outcome inventory - hearing aids, the self-assessment of communication, the participation scale, and the assessment of quality of life – 4 dimensions. The questionnaires were translated and adapted using the American Association of Orthopedic Surgeons (AAOS) guidelines. The five stages followed in the study included: i) forward translation; ii) common translation synthesis; iii) backward translation; iv) expert committee review; v) pre-final testing. In this paper, in addition to a description of the process, we also highlight practical issues faced while adopting the procedure with an aim to help readers better understand the intricacies involved in such processes. This can be helpful to researchers and clinicians who are keen to adapt standard self-report questionnaires from other languages to their native language. Full article

544 KiB

Open AccessArticle

Behavior of the Posterior Semicircular Canal after Dix-Hallpike Maneuver

by Francisco Carlos Zuma e Maia, Pedro Luiz Mangabeira Albernaz and Renato Valério Cal

Audiol. Res. 2016, 6(1), 140; https://doi.org/10.4081/audiores.2016.140 - 12 May 2016

Cited by 3 | Viewed by 747

Abstract

The objective of the present study is to analyze the quantitative vestibulo-ocular responses in a group of patients with benign paroxysmal positional vertigo (BPPV) canalolithiasis and compare these data with the data of the tridimensional biomechanical model. This study was conducted on 70 patients that presented idiopathic posterior semicircular canal canalolithiasis. The diagnosis was obtained by Dix- Hallpike maneuvers recorded by videonystagmograph. The present study demonstrates that there is a significant correlation between the intensity of the nystagmus and its latency in cases of BPPV-idiopathic posterior semicircular canal canalolithiasis type. These findings are in agreement with those obtained in a tridimensional biomechanical model and are not related to the patients’ age. Full article

547 KiB

Open AccessArticle

Decrease in Middle Ear Resonance Frequency during Pregnancy

by Emine Kutlu Dag, Cagri Gulumser and Seyra Erbek

Audiol. Res. 2016, 6(1), 147; https://doi.org/10.4081/audiores.2016.147 - 20 Apr 2016

Cited by 3 | Viewed by 829

Abstract

Many physiological changes occur during pregnancy. The aim of the study was to reveal whether there is a change in middle ear resonance frequency during pregnancy. A prospective case-control study was designed at a tertiary referral center. The study included 46 pregnant women at the third trimester (27-40 weeks) and 43 nonpregnant voluntary women. All the study subjects underwent pure-tone audiometry and multifrequency tympanometry. Pure-tone hearing levels at frequencies of 250 to 8000 Hz and resonance frequency values were compared between pregnant and nonpregnant women. Impact of age, side of the tested ear, and weight gained in pregnancy on resonance frequency were evaluated. Air conduction threshold values at frequencies of 250 Hz and 500 Hz were significantly higher in pregnant women than in the control group (P<0.001). Middle ear resonance frequency values of both ears in pregnant women were found to be significantly lower than those in control group (P<0.001). There was no statistically significant relation of middle ear resonance frequency values to age or side of the tested ear in both groups (P>0.05). A negative correlation between weight gained in pregnancy and middle ear resonance frequency values was determined for the left ear (correlation coefficient for left ears: –0.348, P=0.018). The results of this study suggest that resonance frequency may be decreased during the pregnancy. More comprehensive studies in which many pregnant women followed regularly before and after pregnancy are needed to have more certain links. Full article

701 KiB

Open AccessArticle

Survey of Cochlear Implant User Satisfaction with the Neptune™ Waterproof Sound Processor

by Jeroen J. Briaire, Indian Research Group, Andreas Büchner, Gennaro Auletta, Helena Arroyo, Carmen Zoilo, Patrizia Mancini, Roberta Buhagiar, Neelam Vaid and Nathalie Mathias

Audiol. Res. 2016, 6(1), 146; https://doi.org/10.4081/audiores.2016.146 - 20 Apr 2016

Cited by 5 | Viewed by 774

Abstract

A multi-center self-assessment survey was conducted to evaluate patient satisfaction with the Advanced Bionics Neptune™ waterproof sound processor used with the AquaMic™ totally submersible microphone. Subjective satisfaction with the different Neptune™ wearing options, comfort, ease of use, sound quality and use of the processor in a range of active and water related situations were assessed for 23 adults and 73 children, using an online and paper based questionnaire. Upgraded subjects compared their previous processor to the Neptune™. The Neptune™ was most popular for use in general sports and in the pool. Subjects were satisfied with the sound quality of the sound processor outside and under water and following submersion. Seventyeight percent of subjects rated waterproofness as being very useful and 83% of the newly implanted subjects selected waterproofness as one of the reasons why they chose the Neptune™ processor. Providing a waterproof sound processor is considered by cochlear implant recipients to be useful and important and is a factor in their processor choice. Subjects reported that they were satisfied with the Neptune™ sound quality, ease of use and different wearing options. Full article

838 KiB

Open AccessBrief Report

Automated Classification of Vowel Category and Speaker Type in the High-Frequency Spectrum

by Jeremy J. Donai, Saeid Motiian and Gianfranco Doretto

Audiol. Res. 2016, 6(1), 137; https://doi.org/10.4081/audiores.2016.137 - 20 Apr 2016

Cited by 4 | Viewed by 703

Abstract

The high-frequency region of vowel signals (above the third formant or F3) has received little research attention. Recent evidence, however, has documented the perceptual utility of high-frequency information in the speech signal above the traditional frequency bandwidth known to contain important cues for speech and speaker recognition. The purpose of this study was to determine if high-pass filtered vowels could be separated by vowel category and speaker type in a supervised learning framework. Mel frequency cepstral coefficients (MFCCs) were extracted from productions of six vowel categories produced by two male, two female, and two child speakers. Results revealed that the filtered vowels were well separated by vowel category and speaker type using MFCCs from the high-frequency spectrum. This demonstrates the presence of useful information for automated classification from the high-frequency region and is the first study to report findings of this nature in a supervised learning framework. Full article

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