Drill-Generated Noise Levels in ear Surgery

Kylén, P.; Arlinger, Stig

doi:10.3109/00016487609120925

Cited by 78 publications

(54 citation statements)

References 5 publications

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“…Another authors have described that the noise trauma may account some patients in high-tone frequencies after tympanoplasty. 5 It is suggested that the high-frequency audiometry is a very sensitive tool to assess any damage to inner ear due to surgical procedures on the middle ear and temporal bone. 9 The comparison of the bone conduction thresholds with audiometry results after completed healing of the ear is completed, disclosed that even under packed ear, BC can give reliable information on cochlea function, if 10 to Applied Mann-Whitney U test results showed that the averages of ranks of all pre-and postoperative measurement of hearing levels was getting differences between mastoidectomy (group = 1) and tympanoplasty (group = 2) groups which was significant in statistically at independent groups (p < 0.05) Statistically significant differences were observed in repeated measurement of mean bone conduction thresholds in radical mastoidectomy-applied patients before and after surgery with Wilcoxon signed test (p < 0.05) Statistically significant differences were observed at 0.5, 1 and 4 kHz frequencies with Wilcoxon signed test in repeated measurement of mean bone conduction thresholds in radical mastoidectomy-applied patients before and after surgery (p < 0.05)…”

Section: Discussionmentioning

confidence: 99%

“…4 Everytime when a drill is used, the ipsilateral cochlea is exposed to noise levels of about 100 dB and the contralateral cochlea to levels of 5 to 10 dB lower. 5 For example, when drilling in the mastoid cavity, the noise levels range from 85 to 117 dB. During cochleostomy noise levels ranged from 114 to 128 dB SPL when recordings were made close to the round window.…”

Section: Introductionmentioning

confidence: 99%

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How Drill-Generated Acoustic Trauma effects Hearing Functions in an Ear Surgery?

Paksoy¹,

Şanli²,

Hardal³

et al. 2012

International Journal of Head and Neck Surgery

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Objective: In otology, a wide variety of devices are used that have significant noise output, both operated ear and the patient. We aimed to determine hearing damages due to drill-generated acoustic trauma in ear surgery. We want to find how degree drill-generated acoustic trauma is responsible from sensorineural hearing loss in ear surgery. Materials and methods:We designed a retrospective study about 100 patients who underwent radical or modiphied radical mastoidectomy and tympanoplasty. The audiometric testing was done both pre and postoperatively to detect any significant hearing loss in the immediate postoperative period. The data were analyzed using the Wilcoxon sign and Mann-Whitney U tests. This study proposes that hearing loss is caused by drill noise conducted to the operated ear by vibrations of temporal bone.Results: A sensorineural hearing loss soon after mastoid surgery is seen due to the noise generated by the drill. Mean pure-tone thresholds obtained was significantly more in mastoidectomy applied patients when compared to tympanoplasty . Mean bone conduction (BC) hearing levels impaired 6,6 dB in 1 kHz ,5.5 dB in 0.5 kHz , 5 dB in 4.kHz and 3.1 dB in 2 kHz in mastoidectomy groups but improved 5.5 dB in 0.5 kHz, 2.2 dB in 1 kHz , 2.7 dB in 2 kHz in tympanoplasty groups. Statistically significant differences were observed at the 0.5-1 and 4 kHz frequencies pre and postoperative in the hearing thresholds of BC changing in mastoidectomy group, however, the averages of ranks of all pre and postoperative measurement of hearing levels show differences between mastoidectomy and tympanoplasty groups was significant in statistically at independent groups (p < 0.05). Conclusion:We conclude that drill-generated noise during mastoid surgery has been incriminated as a cause of sensorineural hearing loss. Drilling during mastoid surgery may result in temporary or permanent noise-induced hearing loss. Possible noise disturbance to the inner ear can only be avoided by minimizing the duration of harmful noise exposure and carefull using burr to near the cochlear structures.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

How Drill-Generated Acoustic Trauma effects Hearing Functions in an Ear Surgery?

Paksoy¹,

Şanli²,

Hardal³

et al. 2012

International Journal of Head and Neck Surgery

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show abstract

“…Many researchers have measured the levels of the noise that occur due to drilling in temporal bone surgery (8,9,12,14). Kylen et al (9) found noise levels associated with drilling in mastoid surgery as 100 dB in the operated ear and below 5-10 dB in the contralateral ear.…”

Section: Discussionmentioning

confidence: 99%

“…It has been found that the noise level is 100 decibels (dB) in the operated ear and 90-95 dB in the contralateral ear during the drilling procedure in mastoidectomy (9). In addition, in the study by Tos et al (10), which was conducted on cadavers, they reported that a noise of 114-128 dB was produced in association with instruments used in middle ear surgery.…”

Section: Introductionmentioning

confidence: 95%

Evaluation of Inner Ear Damage by Using Otoacoustic Emissions in Patients Who Underwent Mastoidectomy and Tympanoplasty Operations in Early Period

Özdamar

Koçak

Aydın

et al. 2015

Turk Arch Otorhinolaryngol

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Objective: We aim to demonstrate inner ear damage caused by drilling in the early period. Healthy contralateral ears of patients who underwent mastoidectomy using drill or tympanoplasty without using drill were compared. Methods:A total of 38 patients (mastoidectomy: 22, tympanoplasty: 16) who were diagnosed as chronic otitis media and were scheduled for surgery were included. Distortion product (dp) otoacoustic emissions measurements were performed on healthy contralateral ears of patients on pre-and post-operative 1. hour, 1. day, 2. day, 3. day, and 4. day. Results:In mastoidectomy group, dp otoacoustic emission values on post-operative 1. hour, 1. day, 2. day, 3. day, and 4. day at a frequency of 4000 Hz were significantly lower than in tympanoplasty group (p<0.05). In mastoidectomy group, dp values on post-operative 1. hour, 1. day, 2. day, 3. day, and 4. day at 4000 Hz significantly decreased in comparison with pre-operative period (p<0.05). In comparison with pre-operative period, decrease in dp values on post-operative 1. hour, 1. day, and 2. day at 4000 Hz in mastoidectomy group is significantly higher than those in tympanoplasty group (p<0.05). In tympanoplasty group, dp values on post-operative 1. hour at 4000 Hz significantly decreased in comparison with pre-operative period (p<0.05). Conclusion:Drilling used in mastoidectomy operation damage healthy contralateral ears by causing acoustic trauma. This damage can be determined by otoacoustic emissions in the early period. According to our study, hearing loss is temporary and more distinct at higher frequencies. Keywords

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“…It is difficult to pinpoint a particular factor as responsible cause of sensorineural hearing loss during middle ear surgeries. But vibration produced by the drilling burr, type and size of drilling burr [figure-, table 6,7], noise of suction has been suspected as one of the most important factor responsible for post-operative sensorineural hearing loss [1] . Hearing loss in the contralateral ear is caused by the drill noise vibration conducted by the intact skull to the opposite ear.…”

mentioning

confidence: 99%

Evaluation of Sensorineural Hearing Loss Caused by Drill Burr (Types, Size and Speed of Drilling) In Ipsilateral and Contra Lateral Ear after Middle Ear Surgery

Bhan¹,

Purohit²,

Verma³

et al. 2016

jmscr

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Drill-Generated Noise Levels in ear Surgery

Cited by 78 publications

References 5 publications

How Drill-Generated Acoustic Trauma effects Hearing Functions in an Ear Surgery?

How Drill-Generated Acoustic Trauma effects Hearing Functions in an Ear Surgery?

Evaluation of Inner Ear Damage by Using Otoacoustic Emissions in Patients Who Underwent Mastoidectomy and Tympanoplasty Operations in Early Period

Evaluation of Sensorineural Hearing Loss Caused by Drill Burr (Types, Size and Speed of Drilling) In Ipsilateral and Contra Lateral Ear after Middle Ear Surgery

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