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  • Title: [ABR short latency negative responses in neonates].
    Author: Zagólski O.
    Journal: Przegl Lek; 2005; 62(1):17-9. PubMed ID: 16053214.
    Abstract:
    Short latency negative responses (SLNRs) are waves recorded in auditory brainstem responses after stimulation with high intensity acoustic stimuli. They appear between waves I and III. Recordings of the waves evoked in high-risk of deafness infants with broad-band 2000-4000 Hz clicks were compared to those recorded after stimulation with 500 Hz tone bursts, considered to be most appropriate for acoustic stimulation of the saccule. Mean amplitude value of SLNRs recorded after click stimulation was 701.8 nV and after tone burst stimulation - 590.3 nV. SLNR latencies evoked with click and tone burst were 3.21 ms and 5.3 ms. Amplitudes obtained in infants with normal hearing threshold values did not differ from those obtained in subjects with sensorineural hearing loss. SLNRs were not obtained in case of 3 ears with sensorineural hearing loss which suggests serious inner ear damage. Click evoked SLNRs are easier to evaluate.
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