Frequency of Profound Congenital Hearing Loss in Healthy Newborn Infants in Fars Province
- سال انتشار: 1392
- محل انتشار: مجله علمی ناباروری ایران، دوره: 4، شماره: 1
- کد COI اختصاصی: JR_IRJN-4-1_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 247
نویسندگان
Neonatal Research Centre, Department of Pediatrics, Shiraz U niversity of Medical Sciences, Shiraz , Iran
Medical student, Shiraz , Iran
چکیده
Introduction Deafness is one of the most important sensory disturbances at birth. Hearing loss can affect the development of speaking and learning during life. Early diagnosis and intervention improve language outcome. The current study aimed to determine the frequency of profound congenital hearing loss in healthy newborn infants in Fars province. Methods In a multicenter prospective study, from August 2010 to August 2011, 12573 newborns were screened for hearing loss prior to discharge from the wellborn nursery at nine teaching and private hospitals in Fars province. A three-stage hearing screening protocol using transient evoked otoacoustic emissions (TEOAE) screening with referral for diagnostic second TEOAE and auditory brainstem evoked response (ABER) assessment was employed. All neonates with abnormal initial TEOAE screening, followed with phone call for language outcome after one year. Newborns with hospital admission or drug administration excluded from the study.Results The overall pass rate in the initial screening was 91.8%, thus 1019(8.1/1000) neonates referred for diagnostic audiological assessments. Out of 1019 infants scheduled for follow-up study, only 619 neonates returned. Using follow-up letters and phone calls, it was managed to improve the response rate for language outcome after one year. Two infants were identified with profound bilateral congenital hearing impairment. These infants were immediately referred for cochlear implantation.Conclusion Findings of the current study showed that the frequency of profound congenital hearing loss is 0.159/1000 normal newborn infants in Fars province. The initial TEOAE has high false positive that may be due to occlusion of external ear canal by vernix in the early postnatal period.کلیدواژه ها
Congenital hearing loss, Newborns, Prevalence, Neonatal screeningاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.