Comparison of Ce-Chirp Impulse Latency and Amplitude Values Between High Risk Prematures with Corrected Age of 0-6 Months and Healthy Newborns

ABS TRACT Objective: The obtained mean latency and amplitude values will help us for clinical interpretation of high risk prematüre infants and newborns’ ABR tests by using ce chirp impulse. Material and Methods: In this study, 35 high-risk premature and 35 healthy newborns with a corrected age range of 0-6 months were included. The wave latency and amplitude values in the auditory brainstem response (ABR) test of 500, 1000, 2000 and 4000 Hz using the narrow-band chirp stimulus were compared in these two groups. Results: V-wave values obtained from all infants were obtained at the highest amplitude (0.58 μV) at 90 dB at 1000 Hz and the shortest latency (3.73 ms) at 90 Hz at 2000 Hz in healthy newborn. There was no significant difference between V wave latencies with regard to gender. In our study, as a result of V wave latency and amplitude measurements obtained in comparison of high-risk premature and healthy newborns, a statistically significant difference was found between all frequencies (500, 1000, 2000 and 4000 Hz) and narrowband chirp stimulus between the two groups. Conclusion: Considering that auditory neural maturation persisted up to 18 months, we obtained mean values that will help clinical interpretation of high-risk premature infants and newborns by using the V wave latency and amplitude values.