Journal ArticleDOI
Drill- and suction-generated noise in mastoid surgery.
TLDR
The results show that the single factor contributing the highest noise level is suction irrigation, which exposes the ipsilateral ear to noise levels averaging up to 107 dB (A).Abstract:
The air-conduction noise levels in the external and middle ear generated by drilling and suction during temporal bone surgery were measured. Variables included diamond burrs, cutting burrs, two different air drills (Hall and Stryker) an electric drill (Emesco), and drilling with and without suction irrigation. The results show that the single factor contributing the highest noise level is suction irrigation, which exposes the ipsilateral ear to noise levels averaging up to 107 dB (A). The average noise levels of drilling range from 65 to 96 dB (A) varying with the drill and burr used. Simultaneous drilling and suction irrigation generated noise levels ranging from 91 to 108 dB (A). Cutting burrs were found to be up to 9 dB (A) more intense than diamond burrs. Exposure to these noise levels may account for shifts in the hearing thresholds sometimes apparent in postoperative audiograms of mastoid surgery patients.read more
Citations
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Journal ArticleDOI
Mechanisms of intraoperative brainstem auditory evoked potential changes.
TL;DR: Brainstem auditory evoked potential (BAEP) changes during intraoperative monitoring may reflect damage to or potentially reversible dysfunction of the ear, the eighth nerve, or the brainstem auditory pathways up to the level of the mesencephalon.
Journal ArticleDOI
Effect of ondansetron on nausea and vomiting after middle ear surgery during general anaesthesia.
TL;DR: The efficacy of ondansetron 4 mg and 8 mg was compared with placebo in the reduction of postoperative nausea, retching and vomiting (PONV) after middle ear surgery during general anaesthesia, in 75 patients, in a double-blind and randomized study.
Journal ArticleDOI
Operating room sound level hazards for patients and physicians
TL;DR: Instrument noise levels for average length surgical cases may exceed OSHA and NIOSH recommendations for hearing safety, and some patients and personnel have additional predisposing physiologic factors.
Journal ArticleDOI
Sensorineural high-frequency hearing loss after drill-generated acoustic trauma in tympanoplasty.
TL;DR: The findings in this study indicate that drilling of the temporal bone can impair the hearing level in the high frequencies in a significant number of patients.
Journal ArticleDOI
Drill-Induced Hearing Loss in the Nonoperated Ear
TL;DR: This study proposes that this hearing loss is caused by drill noise conducted to the nonoperated ear by vibrations of the intact skull, which results in dysfunction of the outer hair cells, which produces a temporary hearing loss.
References
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Journal ArticleDOI
Drill-generated noise levels in ear surgery
P. Kylen,Stig Arlinger +1 more
TL;DR: The noise levels in the cochlea when a drill is used in the mastoid process have been calculated from vibration measurements on intact skulls of human cadavers and temporal bones to lend support to the conclusion that, in ear surgery, the ipsilateral coChlea is exposed to noise levels of about 100 dB and the contralateral co chlea to levels 5-10 dB lower every time the drill is using.
Journal ArticleDOI
Acoustic trauma of the cochlea from ear surgery
Journal ArticleDOI
Variables Affecting the Drill-Generated Noise Levels in Ear Surgery
TL;DR: Drill-induced noise levels in ear surgery cannot be reduced to any great extent and possible noise traumas to the inner ear can only be avoided by minimizing the duration of drilling and thus, theduration of harmful noise exposure to the cochlea.
Journal ArticleDOI
Hearing Function and Chronic Renal Failure
TL;DR: Preliminary attempts to evaluate hyperlipidemia as a possible cause of hearing loss did not reveal any hearing deficit or gain as related to triglyceride or cholesterol levels, and the data suggested other possible causes of observed auditory loss.