[The thresholds comparison of auditory steady-state responses and auditory brain-stem response].

OBJECTIVE

To compare the thresholds of auditory brainstem response (ABR)and auditory steady-state responses (ASSR) in the same group of deaf children and give a clinical evaluation for ASSR after that.

METHOD

Both kinds of thresholds have been recorded and analyzed of these deaf children.

RESULT

The ABR thresholds are (85.82 +/- 12.39) and (82.70 +/- 14.93) dB nHL for left and right ears. At four testing frequencies of ASSR, the thresholds are (86.91 +/- 16.70), (90.32 +/- 16.11), (91.02 +/- 16.58), (89.80 +/- 17.08) and (85.15 +/- 18.16), (89.32 +/- 17.76), (90.41 +/- 18.87), (85.15 +/- 17.03) dB HL for left and right ears. The correlation coefficients between the ASSR and ABR of left and right ears are 0.622, 0.721, 0.757, 0.714 and 0.613, 0.732, 0.795, 0.739 at these frequencies respectively. These results showed significant correlation exiting.

CONCLUSION

Reliable and frequency specific results could be obtained by ASSR so that it could be as a promising audiometry in clinic.