[Follow-up examination for newborns and infants who failed hearing screening].
OBJECTIVE
To investigate the hearing change and the characteristic of hearing thresholds of the infants failing in the hearing screening.


METHODS
ABR,DPOAE and acoustic immittance were used to test infants failing in the screening in their third month and the sixth month, whose results were compared.


RESULTS
In the third month the false positive rate of DPOAE test was 9.6%. Comparing with the results tested in the third month, the degree of severe hearing loss retested in the sixth month did not change much. But the percentage of the slight-moderate hearing loss improvement to normal or better was higher. Comparing ABR threshold result in the third month and that in the sixth month, t = 3.496, P <0.01 in the left ear, and t = 5.572, P <0.01 in the right ear, respectively. There was significant difference between these results.


CONCLUSIONS
The new-borns failing DPOAE can not be just considered to identifying hearing loss,and it must be with the ABR to make the diagnosis. It is feasible to diagnose severe-profound hearing loss in the third month and interfere before the sixth month, but the infants with mild-moderate hearing loss must undertake the auditory tests more than twice and be followed up in more than half a year, then we can make diagnosis according to the audiologic evaluations results and the daily behaviors.
Xu
Jun
J
Department of Otorhinolaryngology, the Affiliated Hospital of School of Medicine of Ningbo University, Ningbo, 315020, China. hxdj@163.com
Chen
Shufei
S
Zheng
Zhoushu
Z
Xu
Ming
M
Shen
Anmin
A
D001309:Auditory Threshold; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D034381:Hearing Loss / Q000175:diagnosis / Q000517:prevention & control*; D006320:Hearing Tests; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D015997:Neonatal Screening / Q000379:methods*; D017084:Otoacoustic Emissions, Spontaneous