P099: Otoacoustic Emissions in Patients with Tinnitus

Granjeiro, Ronaldo Campos; Sampaio, André Luiz Lopes; Kehrle, Helga Moura; Oliveira, Carlos Augusto Costa Pires de; Bezerra, Roberta Lemos; Almeida, Vanessa Furtado de

doi:10.1016/j.otohns.2006.06.1131

Cited by 2 publications

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“…The results of the present study revealed significant decreases in the DPOAEs amplitude over the tested frequencies range Our results are consistent with the results obtained by Shiomi et al, [4] Igna et al, [7] Favero et al, [8] Vicky et al [9] and Granjeiro et al [10] that there was a significant decrease in DPOAEs amplitudes over a limited frequency range observed in the normal hearing tinnitus group when compared to the non-tinnitus normal hearing group.…”

Section: Discussionsupporting

confidence: 93%

Relation of distortion product otoacoustic emission and tinnitus in normal hearing patients: A pilot study

et al. 2014

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It was observed that the amplitudes of DPOAE were significantly lower in tinnitus patients than that of persons without complaint of tinnitus, at a frequency of 1281-1560, 5120-6250, 7243-8837 Hz, which imply that decrease of DPOAEs amplitudes may be related to the presence of tinnitus. It can be concluded that there is association between tinnitus and reduced OHC activity which indicate the OHC of cochlea are involved in the generation of tinnitus.

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Section: Discussionsupporting

confidence: 93%

Relation of distortion product otoacoustic emission and tinnitus in normal hearing patients: A pilot study

et al. 2014

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“…The results of this study revealed that there was a significant decrease 44% in the DPOAE amplitude in patients among study group 1(tinnitus only) consistent with the results obtained by Hussein Qasem et al [ 25 ], Shiomi et al [ 26 ] Igna et al [ 27 ], Fvaero et al [ 28 ], Vicky et al [ 29 ], and Granjeiro et al [ 30 ] that there was a significant decrease in DPOAEs amplitudes over a limited frequency range observed in the normal hearing tinnitus group when compared to the control group (non-tinnitus normal hearing group).…”

Section: Discussionsupporting

confidence: 90%

“…In contrast, our results do not agree with the results obtained by Gouveris et al [ 31 ] stating that tinnitus ears exhibited relatively increased amplitude of DPOAEs at higher frequencies (4–6.3 kHz) when compared with the group of healthy ears and relatively decreased DPOAEs amplitudes at middle frequencies. The discrepancy between our results and Gouveris et al results may be due to the availability of an acute progressive lesion of the cochlea such as recruitment “which is the abnormal growth of loudness as the intensity of sound increased”, given that all in Gouveris et al’s study group had acute symptoms, or could be that the increased amplitude of the DPOAEs in this exact frequency area seems from the fact that most of their patients apparent tinnitus at the 4–6 kHz frequencies and hence that a primary lesion of the cochlea occurs at this specific section, or any injury to the inner hair cells of the cochlea may result in the improved DPOAEs amplitudes [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

The use of distortion product otoacoustic emissions (DPOAE) records to estimate effect of vitamin B complex on changing severity of tinnitus

Hameed

Eleue

Mosawi

2018

Annals of Medicine and Surgery

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IntroductionPatients that are complaining from tinnitus but have normal hearing comprise an uncommon group and there is rare literature about them. Deficiency in B-complex vitamins has been shown to result in tinnitus and supplementation may improve the symptom which means manipulation of cochlear status. Distortion Product Otoacoustic emissions (DPOAEs) used frequently to assess cochlear status.ObjectivesThe uses of DPOAE changing amplitude as a parameter to estimate effect of vitamin B complex on changing the severity of tinnitus in patients with tinnitus only in comparison to patients have tinnitus with Sensory Neural Hearing Loss (SNHL) and a control group.MethodsProspective observational cohort study was performed in AL-Karama Teaching Hospital as a secondary medical care center, from 01/01/2012 to 31/12/2016. A three groups had been evaluated clinically and by OAE device (ECHOLAB) to study the DPOAE changing amplitude before and after one month of supplementation of B-complex vitamins to 25 patients in study group (1) have (tinnitus only) and also to 25 patients in study group (2) have (Tinnitus + SNHL) but leaving control group who were a 25 medical staff (No Tinnitus and nor SNHL) without treatment.ResultsIt has been found that among Study group 1 (patients had Tinnitus only), Study group 2 (patients had Tinnitus + SNHL) and the control group: 16 patients (44%), P-value = 0.000 HS; 28 patients (78%) P-value = 0.000 HS; and 0% respectively, they had low Amplitude of DPOAE recorded by OAE device (ECHOLAB). After one month from treatment with Neurobine ampules for study group 1& 2 but not control group (whom receive no treatment), those who got clinical improvement + increase Amplitude of DPOAE (i.e. subjective + objective changes) after treatment were 10 patients (28%) P-value = 0.000 HS in study group1, and two patients (5%) P-value 0.321 NS in study group 2, and there was no changes (zero) among control group.ConclusionsThe uses of DPOAE changing amplitude could be used as a parameter to estimate effect of vitamin B complex on changing the severity of Tinnitus in patients with tinnitus only or those have Tinnitus with SNHL. The supplementation of vitamin B complex could improve the tinnitus severity especially in patients with tinnitus without SNHL.

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P099: Otoacoustic Emissions in Patients with Tinnitus

Cited by 2 publications

References 0 publications

Relation of distortion product otoacoustic emission and tinnitus in normal hearing patients: A pilot study

Relation of distortion product otoacoustic emission and tinnitus in normal hearing patients: A pilot study

The use of distortion product otoacoustic emissions (DPOAE) records to estimate effect of vitamin B complex on changing severity of tinnitus

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