Drill- and Suction-Generated Noise in Mastoid Surgery

Parkin, James L.; Wood, Gordon S.; Wood, Rory D.; McCandless, Geary A.

doi:10.1001/archotol.1980.00790260024008

Cited by 54 publications

(38 citation statements)

References 4 publications

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“…The results show that the single factor contributing the highest noise level is suction irrigation. 30 In our patients suction is used in all surgeries and drill is used in MRM and cortical mastoidectomy, but no significant SNHL is observed.…”

Section: Cortmast Tplastymentioning

confidence: 68%

A study of occurrence of postoperative sensorineural hearing loss after middle ear surgeries

Mazhar

Shrikrishna

2017

Int J Otorhinolaryngol Head Neck Surg

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INTRODUCTIONSurgery of the ear is a fascinating, yet challenging field in otorhinolaryngology. Chronic otitis media is the most common middle ear disease that is encountered in our hospital. There are various surgical procedures that are performed in cases of COM and other similar conditions of the middle ear.A thorough knowledge of the post-operative complications and pitfalls is indispensable for the surgeon, not only to provide the best possible care to his patients, but also to further improve his surgical outcomes.Any type of otosurgical procedure involves the risk of inner ear damage. As middle ear surgery is also performed for functional reasons this risk should be taken into consideration.The purpose of this study is for the assessment of sensorineural hearing loss after middle ear surgeries like tympanoplasty, mastoidectomy and tympanoplasty with mastoidectomy. There have been some studies mentioning many insults to the cochlea during middle ear ABSTRACT Background: Chronic otitis media is the most common middle ear disease that is encountered in our hospital. There are various surgical procedures that are performed in cases of COM and other similar conditions of the middle ear. Any type of otosurgical procedure involves the risk of inner ear damage. As middle ear surgery is also performed for functional reasons this risk should be taken into consideration. There have been some studies mentioning many insults to the cochlea during middle ear surgeries. Some studies claim that sensorineural hearing loss post-surgery is not significant at all. In view of these contradictory studies, further study is essential on this subject. Methods: All patients undergoing middle ear surgeries are subjected to pure tone audiometry pre-operatively and tenth day, one month and three months postoperatively. Hearing assessment done with pure tone audiometer. The hearing threshold for pure tone audiometer was determined in a sound treated room at frequencies ranging from 125-8000 Hz for air conduction and 250-4000 Hz for bone conduction. Results: Sensorineural hearing loss was not found in any of the patients postoperatively on 10th day 1st month and 3rd month. Conclusions: There was no significant variation between preoperative and postoperative bone conduction levels. Therefore middle ear surgeries have not resulted in any SNHL. Duration of ear discharge, duration of surgery, type of surgery had no bearing on postoperative sensory neural hearing levels.

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Section: Cortmast Tplastymentioning

confidence: 68%

A study of occurrence of postoperative sensorineural hearing loss after middle ear surgeries

Mazhar

Shrikrishna

2017

Int J Otorhinolaryngol Head Neck Surg

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“…In addition, intense aspirations performed during tympanoplasty can lead to acoustic trauma. Parkin et al (27) (24) detected statistically insignificant decreases in the DPOAE values of patients' contralateral ears on the postoperative 1st day in the tympanoplasty group. In our study, statistically significant changes were observed in the postoperative 1st hour, 1st day, and 2nd day values of the healthy contralateral ears of the mastoidectomy group at 4000 Hz compared to those in the preoperative period.…”

Section: Discussionmentioning

confidence: 98%

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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“…Parkin et al, found that sound levels above 115 dB can cause sensorineural hearing loss if sustained for more than 15 minutes. 8 …”

Section: Discussionmentioning

confidence: 99%

A cross sectional study to assess effects of mastoid drill on hearing levels in chronic suppurative otitis media cases in a tertiary care hospital in northern Maharashtra

Patil

Khairnar

2017

Int J Otorhinolaryngol Head Neck Surg

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Background: Chronic suppurative otitis media (CSOM) is most common middle ear disease that is encountered in daily practice. It is accepted that middle ear surgery carries a small risk of sensorineural hearing loss. The present study was done to assess the effects of mastoid drilling on hearing loss in operating ear and contralateral ear in cases of CSOM. Methods: 80 patients with CSOM (with or without complications) age group 15 -60 years attended the ENT outpatient department of Government Medical College and Hospital after taking consent were selected for the study using universal sampling technique, between August 2014 to August 2016. Results: The study was conducted on 80 patients, aged between 15 to 60 years, who underwent ear surgery for CSOM at Government Medical College Hospital, from August 2014 to August 2016. We found no postoperative SNHL in 28 patients, while 52 patients (48 patients with temporary SNHL & 4 patients with permanent SNHL) had suffered from development of mild SNHL after middle ear surgery. Conclusions: Mastoid drilling used during ear surgery can cause mild sensorineural hearing loss in immediate postoperative period in operated ear.

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Drill- and Suction-Generated Noise in Mastoid Surgery

Cited by 54 publications

References 4 publications

A study of occurrence of postoperative sensorineural hearing loss after middle ear surgeries

A study of occurrence of postoperative sensorineural hearing loss after middle ear surgeries

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

A cross sectional study to assess effects of mastoid drill on hearing levels in chronic suppurative otitis media cases in a tertiary care hospital in northern Maharashtra

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