Physiologic Assessment of Young Infants – Puzzles and Challenges in Early Hearing Detection and Intervention
نویسنده
چکیده
This paper touches on selected topics related to the validity, accuracy and efficiency of initial audiologic assessment of babies referred from newborn hearing screening. Utilization of OAEs, CMs, ABRs, ASSRs, and late cortical potentials are discussed. The puzzles and challenges discussed include the following: (1) Many factors can complicate the physiologic assessment and differential diagnosis of ANSD. (2) ABRs to rarefaction and condensation clicks can show extraordinary and puzzling differences, (3) slow cortical potentials can yield hearing threshold estimates in sleeping newborns, (4) the frequency specificity of the ASSR should not be based simply on stimulus energy spectra, (5) comparative studies of techniques should follow some simple methodological rules, and (6) ABR thresholds can be more efficient if stimulation and averaging tactics follow some basic statistical principles.
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Early Diagnosis and Intervention for Hearing Loss in Newborns Discharged from Intensive Care Units: a Four-year Follow-up Study in North of Iran
Background Hearing loss is the most common congenital disorder the incidence of which is further increased in the presence of risk factors for hearing loss among newborns admitted to the neonatal intensive care unit (NICU). The aim of this study was early diagnosis and intervention for hearing loss in newborns discharged from NICU. Materials and Methods This prospective cohort study was conduct...
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