Introduction: The Automated Auditory Brainstem Response (AABR) is considered an effective and sensitive technique for neonatal hearing screening. Most of the time the stimulus used is click, however studies show that this type of stimulus requires much more time to reach the base and top of the cochlea. The use of the CE-Chirp® stimulus has been an alternative to promote simultaneous neuronal activation, causing stimulation of the entire region of the cochlea.

Objective: Compare the results of the AABR using two different types of stimuli.

Methods: This is a cross-sectional study carried out over a period of six months. 33 infants with an average age of three months were enrolled in the study. All of them have done otoacoustic emission before with "pass" or "refer" results and some of them had risk indicators for hearing loss. AABR was initially performed with the CE-Chirp® stimulus, followed by the AABR with the click stimulus.

Results: 25 infants had risk indicators for hearing loss. 31 infants (94%) presented normal results in both ears with AABR CE-Chirp® stimulus while 27 (82%) presented normal results in both ears with AABR click stimulus.

Conclusion: The study showed that not always the results were correspondent and the majority showed abnormal results when click stimulus was used. Therefore, it is suggested the use of the AABR with click stimulus on the neonatal hearing screening to reduce the number of false negatives.