Influence of Neonates Type of Feeding on Otoacoustic Emissions
Introduction: The literature reports some benefits of exclusive breast-feeding. Thus, to investigate whether the type of food influences the results of otoacoustic emissions favor the expansion of knowledge on the subject.
Objectives: The study aimed to check whether the type of food influences the results of otoacoustic emissions.
Method: Cross-sectional and prospective study conducted in a low-risk maternity. The sample consisted of 579 infants, aged between 6 and 54 (average of 13 days) days, who attended neonatal hearing screening after discharge. To achieve the goal, neonates were divided into groups according to the type of feed: 83.9% received exclusive breast-feeding and 16.1% were fed mixed or artificially. As a screening procedure was employed, the transient evoked and distortion product otoacoustic emissions using the AccuScreen (Madsen, GN Otometrics A/S, Denmark). The results have been described with the use of descriptive statistics and inferential analysis (chi-square test).
Results: By analyzing evoked otoacoustic emissions by the type of food, it was observed that 95.88% of infants, which were exclusively breast-fed, and 88.20% with mixed or artificial feeding passed transient evoked otoacoustic emissions. Similarly, 91.76% with exclusive breast-feeding and 84.3% with mixed or artificial feeding passed on distortion product otoacoustic emissions. It is important to note that there was no significant difference in any of the variables in any procedure.
Conclusion: The results showed that neonates with exclusive breast-feeding showed a higher rate of pass on evoked otoacoustic emissions than those fed mixed or artificially.
Keywords: audiology, neonatal screening, hearing.