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Auteur Trevor Cronin
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Temporary threshold shift following ear canal microsuction / Trevor Cronin ; Fei Zhao in International journal of audiology IJA, Vol. 59, n°9 (Septembre 2020)
Titre : Temporary threshold shift following ear canal microsuction : A comparative analysis measuring hearing levels before, immediately and 1-week after earwax removal by microsuction Titre original : Trevor Cronin & Fei Zhao Type de document : Article Auteurs : Trevor Cronin ; Fei Zhao Année de publication : 2020 Article en page(s) : p. 713-718 Langues : Anglais (eng) Descripteurs : HE Vinci
Bruit ; Cerumen ; Cires ; Seuil auditif ; Succion
Mots-clés : temporary threshold shift (TTS) Résumé : Objectives: To investigate a temporary threshold shift (TTS) of hearing and pain/discomfort caused by the microsuction procedure. Hearing loss induced by impacted cerumen was also investigated.
Design: Impacted cerumen was removed from patients using microsuction. Hearing assessments were carried out before the procedure, immediately after and 1-week later. Hearing thresholds measured in different sessions were compared to determine the TTS caused by the microsuction procedure and hearing loss induced by impacted cerumen. A questionnaire was used to evaluate the pain/discomfort experienced by patients.
Study Sample: 30 patients (50 ears) were recruited from a cerumen removal clinic.
Results: Significant hearing loss caused by impacted earwax was found across individual frequencies (mean 11.4 dB, maximum 38.1 dB). A TTS appeared in 43/50 (86%) ears, ranging from 0 to 16.2 dB averaged across frequencies between 0.25 and 8 kHz, with the highest TTS at 6 kHz. Pain and discomfort levels were both rated low, the mean levels were 1.2 (SD = 0.5) and 1.6 (SD = 0.5) respectively on a scale from 1 to 10.
Conclusions: Microsuction appears to be a well-tolerated and preferred procedure for removing impacted cerumen. Because of the significant TTS induced by the microsuction procedure, safety concerns from a hearing perspective should be raised with the patient.
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in International journal of audiology IJA > Vol. 59, n°9 (Septembre 2020) . - p. 713-718[article]