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Original Article

Test-Retest Variability of the Auditory Brainstem Response to Bone-Conducted Clicks in Newborn Infants

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Pages 89-94 | Received 20 Dec 1991, Accepted 14 May 1992, Published online: 07 Jul 2009
 

Abstract

The variability of the auditory brainstem response (ABR) to bone- and air-conducted clicks was investigated utilizing a test-retest paradigm with 20 normal full-term newborn infants. ABRs to bone-conducted clicks at 15 and 30 dB nHL and air-conducted clicks at 30 dB nHL were obtained. The delivery of the bone-conducted signal was controlled. ABR wave V latencies were measured from each test-retest stimulus condition. The results indicated no statistically significant difference in test-retest variability of ABR wave V latencies or amplitudes between bone- and air-conducted clicks. ABRs to bone-conducted clicks, under controlled clinical conditions, are as reproducible and reliable as ABRs to air-conducted clicks in newborn infants.

La variabilité de la réponse évoquée du tronc cérébral aux clics par conduction osseuse (CO) et aérienne CA) est étudiée chez les nouveau-nés normaux à terme. Des réponses ont été obtenues à 15 et 30 dB nHL aux clics par CO et à 30 dB nHL par CA. L'envoi du signal par CO a été contrôlé. Les latences des ondes V ont été mesurées dans chacune des conditions. Les résultats n'indiquent pas de différence significative entre la variabilité des latences ou des amplitudes des ondes V des clics par CO ou CA. Les réponses évojuées du tronc cérébral aux clics par CO chez le nouveau-né sont done, dans des conditions cliniques surveillées, aussi fiables que celles obtenues par CA.

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