نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد شنوایی شناسی، دانشکده توانبخشی دانشگاه علوم پزشکی ایران، تهران، ایران
2 عضو هیئت علمی گروه شنواییشناسی، دانشکده توانبخشی دانشگاه علوم پزشکی ایران، تهران، ایران
3 دانشجوی دکتری تخصصی شنوایی شناسی، دانشکده توانبخشی دانشگاه علوم پزشکی ایران، تهران، ایران
4 دانشیار گروه آمار زیستی، دانشکده توانبخشی، دانشگاه علوم پزشکی تهران، تهران، ایران
5 کارشناس شنوایی شناسی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aims: Real ear measurement is the most prevalent way of verifying hearing aids in children and adults. Recently, auditory evoked potentials have been used to assess the accuracy of fitting in infants and young children who could not present decent behavioral feedbacks. In the present study, the real ear measurement responses of hearing aids fitted with cortical responses are compared with NAL-NL2 formula.
Materials and Methods: A total of 10 children suffering from moderate to severe hearing loss in the age group of 2 to 4 years were selected. At first, real ear measurement responses were obtained from hearing aids which were fitted with cortical responses and then they were compared with the target of NAL-NL2.
Results: Hearing aids which were fitted with cortical responses presented more gain in comparison with NAL-NL2 formula. The amount of P-value was lower than 0/005 in all frequencies and intensities except in the frequency of 500Hz in low intensity level and 4KHz in high intensity level. There was a significant difference in almost all frequencies and intensities between real ear measurement responses and the responses of NAL-NL2 formula (P-Value<0/05).
Conclusion: In the current study, real ear response of hearing aids fitted with cortical responses and NAL-NL2 formula were compared. The results showed a significant difference in almost all frequencies and three levels of intensities between real ear responses of hearing aids, which was fitted with cortical responses, and NAL-NL2 formula.
کلیدواژهها [English]
10. Ching, T.Y., et al., A comparison of NAL and DSL prescriptive methods for paediatric hearing-aid fitting: Predicted speech intelligibility and loudness. International journal of audiology, 2013. 52(sup2): p. S29-S38. ##
11. Chang, H.-W., et al., The relationship between cortical auditory evoked potential (CAEP) detection and estimated audibility in infants with sensorineural hearing loss. International Journal of Audiology, 2012. 51(9): p. 663-670. ##
12. Ching, T.Y., et al., A cross-over, double-blind comparison of the NAL-NL1 and the DSL v4. 1 prescriptions for children with mild to moderately severe hearing loss. International Journal of Audiology, 2010. 49(sup1): p. S4-S15. ##
13. Ching, T.Y., et al., Hearing-aid safety: A comparison of estimated threshold shifts for gains recommended by NAL-NL2 and DSL m [i/o] prescriptions for children. International journal of audiology, 2013. 52(sup2): p. S39-S45. ##
14. Scollie, S., et al., Evaluation of the NAL-NL1 and DSL v4. 1 prescriptions for children: Preference in real world use. International Journal of Audiology, 2010. 49(sup1): p. S49-S63. ##