Enlarged internal auditory canal and sudden deafness

Magliulo, Giuseppe; Stasolla, Alessandro; Colicchio, Maria Giovanna; Gagliardi, Silvia

doi:10.1017/s0022215109992751

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…Following another session of exercise, he developed sudden hearing loss on the other side. Vestibular symptoms did not occur [25]. This indicates that the border zone between IAC fundus and the perilymph space of the inner ear seems to have more pathophysiologic relevance than previously supposed.…”

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confidence: 52%

Nontumorous Enlargement of the Internal Auditory Canal: A Risk Factor for Sensorineural Hearing Loss? A High Resolution CT-Study

Stimmer

Niedermeyer

Kehl

et al. 2015

Fortschr Röntgenstr

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Purpose: First aim of the study was to define normal shape and diameter of the internal auditory canal (IAC). In the second part the clinical relevance of IAC-enlargement was analyzed, considering also lesions of the subtle structures at the fundus of the internal auditory canal. Materials and Methods: 440 high resolution CT-scans of the temporal bone were used for retrospective analysis of the internal auditory canal and its fundus region. Results: The mean value of the IAC diameter in axial and coronal plane was determined. In 20 of 440 patients IAC enlargement was found. In the group with pronounced enlargement (3fold SD) nearly all patients suffered from hearing impairment. In some of them we found structural abnormalities near the IAC fundus in the CSF/perilymph border zone. Conclusion: A new CT-based definition of normal shape and diameter of the internal auditory canal is presented. There is some evidence that a pathologic transmission of CSF-pressure in case of IAC-enlargement and/or abnormal fistulous communications could play an important role in the pathophysilogy of hearing loss. Key points: ??New CT-based definition of normal internal auditory canal. ??Nearly all patients showing pronounced IAC-enlargement suffer from hearing impairment. ??Possible pathomechanism: Transmission of CSF-pressure on the inner ear. Citation Format: ??Stimmer H, Niedermeyer HP, Kehl V et?al. Nontumorous Enlargement of the Internal Auditory Canal: A Risk Factor for Sensorineural Hearing Loss? A High Resolution CT-Study. Fortschr R?ntgenstr 2015; 187: 450???458

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confidence: 52%

Nontumorous Enlargement of the Internal Auditory Canal: A Risk Factor for Sensorineural Hearing Loss? A High Resolution CT-Study

Stimmer

Niedermeyer

Kehl

et al. 2015

Fortschr Röntgenstr

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“…Intense workout sessions increase the susceptibility of developing audiological symptoms (Ireland, 2017 ) as strenuous workouts, such as cardiovascular exercise, resistance training, strength and stretch training, and high-intensity workouts, increase the blood flow to the cochlea, resulting in an increased sensitivity whilst training (Welch, Law, & Dirks, 2014 ). The negative effects of intense workout sessions include increased middle-ear pressure that results in a possible perilymphatic fistula (Gurgel, 2014 ; Magliulo, Stasolla, Colicchio, & Gagliardi, 2010 ) The current study revealed that participants are experiencing audiological symptoms after training, and these symptoms may be warning signs of the hazardous effects of exercise on the auditory system. The negative effects of exercise on the auditory system may also be compounded because of the increase in middle-ear pressure (Nall, 2017 ).…”

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confidence: 60%

Sports audiology: Ear hygiene practices of gym users who wear earphones

Flowers

Pillay

2021

South African Journal of Communication Disorders

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Background: Technological advancements have facilitated the demand for electronic systems to track and measure progress during exercise activities. Electronic devices with music applications, such as iPods and smartphones, are popular during gym sessions as they support the ambiance to one’s exercise programme. Earphones are the popular choice for the transmission of music to the gym user’s ear. There is a direct correlation between the cardiovascular health and the aural health because of the effect of increased blood supply to the auditory system. Therefore, this research study explores the ear hygiene of gym users.Objectives: This study aimed at determining the ear hygiene and middle-ear status of gym users who wore earphones whilst exercising.Method: A purposive sampling method was adopted. Data were collected in two phases: phase 1 via a questionnaire and phase 2 included an otoscopic examination and tympanometry. Qualitative and quantitative data were analysed.Results: Fifty-four participants were included. Ear hygiene was not a priority for all gym users. The results revealed that 87% of the participants randomly cleaned their ears; however, 59% were cleaning their earphones. The middle ear assessment indicated that 17% of the participants presented with pathological indicators. Participants requested for the implementation of educational programmes pertaining to infection control measures for proper ear hygiene.Conclusion: There is a dearth of health and wellness educational programmes that include ear hygiene practices, necessitating the development of prevention and promotion programmes for this niche area in audiology. The need for guidelines pertaining to ear hygiene practices amongst gym users is vital to ensure that the auditory system is monitored and protected when individuals participate in exercise sessions.

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