CHIRP AUDITORY STEADY -STATE RESPONSE AS A HEARING SCREENING TOOL IN HIGH- RISK INFANTS

Background:Newborn hearing screening with automated procedures usually uses broad band stimuli, such as click. Studies using the Auditory Steady-State Response (ASSR) that used specific frequency chirps named narrow CE-chirps have shown obvious diagnostic results. Objective:To assess value of binaural multi-frequency chirp ASSR a tool. To compare and click ABR tool for early diagnosis loss in infants risk factors loss.Methodology: Two groups were studied, group I (28 factors) one or more factor permanent loss, II (ten without factors). Their age ranges from to six months. Assessment middle ear pressure immittancemetry, threshold estimation Click Chirp done. Results: When comparing [group (I) factors], (II) factors] it was found there no statistically significant difference when evaluated by ASSR.By average (Average thresholds of1000, 2000 4000 HZ) threshold, difference. There high positive correlation between ASSR. Conclusion: can be assessment same accuracy thresholds, advantage perceived form estimation. The