Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2015  |  Volume : 2  |  Issue : 2  |  Page : 59-63

Sensitivity of CHIRP auditory brainstem response and auditory steady state response for detecting normal hearing in children

College of Medicine, Al-Mustansiriya University, Baghdad, Iraq

Correspondence Address:
Haider W Alsarhan
College of Medicine, Al-Mustansiriya University, Baghdad
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2314-8667.171527

Rights and Permissions

Background In recent years, great development of electrophysiological procedures for detection of hearing level in infants and children has been achieved - click auditory brainstem response (ABR), tone burst ABR, and notched noise ABR. The two most recent methods are CHIRP signal ABR and auditory steady state response (ASSR). Aim of the study The aim of this study was to identify the best electrophysiological method for detecting normal hearing thresholds. Patients and methods A prospective study was conducted on 80 ears from 58 children aged from 1 to 2 years that showed normal hearing thresholds in all frequencies in visual reinforcement audiometry (VRA) cooperatively, for which CHIRP ABR and ASSR were evaluated and the results were analyzed. Results Both CHIRP ABR and ASSR showed moderate correlation with VRA at 0.5 and 1 kHz and a strong correlation at 2 and 4 kHz. CHIRP ABR thresholds were closer to VRA thresholds and showed a sensitivity of 100%, detecting normal hearing thresholds at all frequencies, whereas the sensitivity of ASSR in detecting normal hearing was decreased with decreasing testing frequency, reaching a low percentage of 57.5% at 0.5 kHz. Conclusion CHIRP ABR is the best electrophysiological method for assessing hearing thresholds in children whose hearing average is expected to be close to normal threshold.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded310    
    Comments [Add]    

Recommend this journal