Otoakustische Emissionen (TEOAE und DPOAE) nach Mittelohroperation

Lieberum, B.; Held, B.; Schrader, Megan

doi:10.1007/978-3-642-85188-9_17

Cited by 1 publication

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“…Middle ear dysfunction resulting in ABG would hamper OAE detection while recovery of the air conduction mechanism might facilitate their recordings. This reasoning is supported by previous studies reporting reoccurrence of OAE in children suffering from otitis media with effusion after insertion of ventilation tubes [34,35] and post myringoplasty [36] . However, varying OAE results were found after stapes surgery: TEOAE were recorded only in 4 out of 37 ears following stapedectomy [36] .…”

Section: Discussionsupporting

confidence: 83%

“…This reasoning is supported by previous studies reporting reoccurrence of OAE in children suffering from otitis media with effusion after insertion of ventilation tubes [34,35] and post myringoplasty [36] . However, varying OAE results were found after stapes surgery: TEOAE were recorded only in 4 out of 37 ears following stapedectomy [36] . DPOAE were detected in 24 of 45 (53%) otosclerotic ears preoperatively and in 10 out of 18 ears (58%) post successful stapes surgery [37] , and in another study in 30%-35% of 40 patients preoperatively and in 88%-91% postoperatively [38] .…”

Section: Discussionsupporting

confidence: 83%

“…The follow-up intervals reported in these previous studies all fell short of the 12 months period which is recommended for the follow-up evaluation of conductive hearing loss middle ear surgery results [36][37][38][39][40][41][42][43]; pre-operative OAE testing was not carried out or done on different group of patients [36,37] , and various stapes surgery techniques and prostheses types were used [38,41,42] .…”

Section: Discussionmentioning

confidence: 99%

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Hearing and Otoacoustic Emissions Outcome of Stapedotomy: Does the Prosthesis Diameter Matter?

Faranesh

Zaaroura²,

Zeidan³

et al. 2017

Int Adv Otol

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OBJECTIVE:To compare the hearing and otoacoustic emissions (OAE) outcome of stapedotomy employing 0.4 and 0.6 mm diameter prostheses. MATERIALS and METHODS:In total, 18 patients with otosclerosis participated in a prospective, double-armed, randomized cohort study. All the patients underwent small fenestra drill stapedotomy employing the Causse fluroplastic large loop piston prostheses. The patients were randomly assigned to groups of 0.4 mm (n=9) and 0.6 mm (n=9) diameter prostheses. The results of pure tone air and bone audiometries, speech audiometry, and OAE conducted 12 months post operatively were compared within and between the groups. RESULTS:The within-group analysis showed significant post-stapedotomy improvements in the average air conduction pure tone thresholds in both groups (52.9±9.6 vs. 25.6±5.2 dB HL; p<0.0001 and 54.6±10.4 vs. 22.2±8.2 dB HL; p<0.0001 for the 0.4 and 0.6 mm groups, respectively) and average air-bone gap (ABG; 37.1±8.5 vs. 8.1±3.9 dB HL; p<0.0001 and 38.3±7.5 vs. 9.9±4.5 dB HL; p<0.0001 in the 0.4 and 0.6 mm groups, respectively). No significant differences were found between the groups in these outcome measures, as well as in the rate of ABG closure within 10 dB HL and the word recognition scores. Favorable outcome in the post-stapedotomy bone conduction (BC) was found for the 0.6 mm prosthesis group, reflecting superior cancellation of the Carhart phenomenon for the 500-3000 Hz pure tone thresholds average (−1.7±3.7 vs. 3.9±6.2 dB HL for the 0.4 and 0.6 mm groups, respectively; p<0.04) and 1000, 2000, and 4000 Hz average (−2.6±4.33 vs. 3.9±7.8 dB HL for the 0.4 and 0.6 mm groups, respectively; p<0.05). Small signal-to-noise ratio (SNR) values of the transient-evoked OAE (TEOAE) and distortion product OAE (DPOAE) were found at baseline and follow-up evaluation with no consistent changes post stapedotomy.CONCLUSION: Similar post-stapedotomy hearing results were found for the 0.4 and 0.6 mm prostheses with small but statistically significant advantage in BC gain and the overclosure parameter for the 0.6 mm prosthesis. OAE testing was not found to be of clinical value in the evaluation of stapedotomy hearing outcome.

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Section: Discussionsupporting

confidence: 83%