With the discovery of otoacustic emissions it has begun possible to analyze the auditive functions of external hair cells in the auditive cortex. The OAE can be spontaneous transients by distortions products. The DPOAE is an objective exam, fast, non painful, non invasive and easy to prescribe for screening in patients with hearing loss, and allow diagnoses and early rehabilitation. STUDY DESIGN: Transversal cohort. MATERIAL AND METHOD: All children of Lar da Criança in Marília, SP, after previous authorization of the responsible, were submitted to on otorhinolaryngology exam and DPOAE. RESULTS: The results presented that one hundred and five children participated in the study and 44,76% presented cerumen. Twelve children even after use of ceruminolytic and ear clearing persist with cerumen, or don't have parents or responsible permission. These children were exclude in the study. and 93 children were submitted to DPOAE After doing DPOAE in 93 patients, 5,37% were changed; 60% were male and 60% had bilateral changed. DISCUSSION: The results were lower than the results find in literature, even the male predominance. Besides, we observe high prevalence of cerumen in our patients. CONCLUSION: Its essential an otorhinolaryngology evaluation before doing the DPOAE. It could be done in newborn, children and adults for early detection and prevention of failure in the cognitive and psycho-emotional development.
otoaoustic emission; hearing loss; auditive screening
