Sudden Sensorineural Hearing Loss: Operative Complication in Non‐Otologic Surgery

Millen, Steven J.; Toohill, Robert J.; Lehman, Roger H.

doi:10.1002/lary.1982.92.6.613

Cited by 35 publications

(25 citation statements)

References 15 publications

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“…[2] In Millen et al ., the significant correlation between CABG and SNHL especially in high frequencies was reported. [12] In our study, the changes in the threshold of hearing in frequencies of 250 and 500 in both ears were significant and in frequency of 1000 in right ear and in frequencies of 4000 in left ear were significant. But this changes, about (2-3), were not noticeable and sever SNHL wasn't seen.…”

Section: Discussionsupporting

confidence: 49%

Sensorineural hearing loss in patients with coronary artery bypass surgery

Sadeghi¹,

Radman

Bidaki

et al. 2013

Adv Biomed Res

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Background:This study is planned to obtain a better understanding of the correlation between sudden sensorineural hearing loss and cardiopulmonary bypass. There are many causes for sudden hearing loss which include infectious, circulatory, inner ear problems like meniere's disease, neoplastic, traumatic, metabolic, neurologic, immunologic, toxic, cochlear, idiopathic (unknown cause) and other causes. One of the less common cause is surgery include cardiopulmonary bypass procedures.Materials and Methods:This study is a self controlled clinical trial on 105 patients that was carried out in chamran Hospital, Esfahan, Iran. Participants were including all those patients undergoing coronary artery bypass surgery in the hospital who fell under the criteria for inclusion. Patients underwent audiometric testing at our hospital on three or two different occasions during the course of this study, Initially before the procedure to test the baseline hearing capacity; then two week after the procedure to assess any changes in hearing ability following the surgery. Data analysis performed by co-variance analysis.Results:In our study the changes in the threshold of hearing in frequency of 1000 in right ear and in frequencies of 2000 and 4000 in left ear were significant, but this changes were about 2-3 db and were not noticeable. The difference in degree of SNHL, before and after surgery in different frequencies were been shown.Conclusion:As loss of the patients with symptomatic sensory neural hearing loss in this study, It isn't commanded the routin auditory assessment pre and post surgery was been done.

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Section: Discussionsupporting

confidence: 49%

Sensorineural hearing loss in patients with coronary artery bypass surgery

Sadeghi¹,

Radman

Bidaki

et al. 2013

Adv Biomed Res

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“…Impairment of the cochlear blood flow (CBF) and damage to the acoustic nerve has been implicated as one of the causes of post-operative sensorineural hearing loss (SNHL) that may occur after cerebellopontine angle (CPA) region surgical manipulations (Millen et al, 1982). Space-occupying lesions of CPA such as acoustic neuromas (AN) and meningiomas are tumors that often require surgical removal.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous measurement of electrocochleography and cochlear blood flow during cochlear hypoxia in rabbits

Yavuz¹,

Morawski²,

Telischi³

et al. 2005

Journal of Neuroscience Methods

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In this study, a new monitoring system is developed to measure cochlear blood flow (CBF) and electrocochleography (ECochG) during transient ischemic episodes of the cochlea. A newly designed otic probe was used for the simultaneous recordings of laser-Doppler CBF and ECochG directly from the round window (RW). The probe enabled the recording of high amplitude compound action potentials (CAP) and cochlear microphonics (CM) with few averages. Experiments were conducted on rabbits to generate episodes of cochlear ischemia by using timed compressions of the internal auditory artery (IAA). The computer monitoring system extracted and measured CAP and CM components from ECochG in real-time. Results indicate that CM and CAP generally followed CBF during compressions and releases of IAA. Both CBF values and CAP amplitudes showed an overshoot following the reperfusion. CAP amplitude measures were found to be very sensitive to ischemia showing very rapid amplitude, latency and morphological changes. CM amplitude decreased more slowly than the CAP and CBF. Simultaneous recordings of CBF and ECochG using the otic probe provide a valuable neuromonitoring tool to investigate the dynamic behavior of the cochlea during ischemia.

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“…More measurement over time could provide more precise data of temporal aspects and reveal any short-term effects directly after surgery. For instance, electrocochleography measured during surgery could provide precise information during the surgery about the functionality of the auditory system and reveal any changes, which might be caused by other mechanisms (15)(16)(17)(18)(19)(20) and reveal any changes already during surgery (29). This procedure, however, does not provide data about the primary or secondary auditory fields.…”

Section: Discussionmentioning

confidence: 99%