الفهرس 
Anatomy of the ear
Necrotizing enterocolitis (NEC):Only 14 pages are availabe for public view
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Abstract
Summary
Hearing loss (HL) is a severe consequence of prematurity. Premature
infants have many concomitant risk factors which influence the occurrence of
hearing deficit ( Wroblewska-Seniuk et al, 2017).
The risk factors for the development of HL were established in 2007 by
JCIH. Among the most prominent causes are family history, craniofacial
abnormalities, in-utero infections, severe hyperbilirubinemia, NICU admission
for more than five days, prolonged mechanical ventilation and syndromes
associated with HL. However, in 50% of infants with permanent congenital HL,
there are no known risk factors (JCIH, 2007).
Neonatal hearing screening (NHS) is considered to be an effective
procedure in early detection of hearing impairment in infants The goal of early
hearing detection and intervention is to maximize linguistic competence and
literacy development in children who have hearing impairment. To optimize the
outcome of these children, the hearing of all infants should be screened at no
later than 1 month of age (Wroblewska-Seniuk et al, 2017).
ABR test widely used as a tool to detect and diagnose peripheral and
central auditory abnormalities in infants, provides a good objective estimate of
the amount of peripheral auditory abnormality or HL (Paulraj et al, 2015).
The aim of the work was to assess the prevalence rate of hearing
impairment using measurements of ABR in preterm neonates admitted to a
NICU and to understand the real influence of neonatal complications considered
of risk for HL.
This study was carried out on preterm neonates from those admitted to
NICU of Pediatric Department at Tanta University Hospitals from December
2016 to December 2017 using ABR test, they were divided into 2 groups .