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Hearing loss etiology in patients referring to Isfahan cochlear implantation center

Seyed Hamidreza Abtahi, Mahsa Sepehrnejad, Shiva Dehghan, Mohammad Hossein Nilforoush
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Abstract

Introduction: Hearing loss is the most common congenital disorders occurring among newborn. Identifying the factors affecting it would reduce the incidence of this disorder. Therefore, the aim of this study was to examine the etiology of congenital hearing loss in patients referring to Isfahan Cochlear implantation center.

 

Materials and Method: This study was performed on 689 patients with cochlear implantation. Demographic data and relative frequency of different causes of congenital hearing loss (acquired and genetic) were determined and recorded. T-test, Chi-Square and Mann-Whitney tests were used to compare the variables studied.

 

Results: Our findings showed that 50 patients (7.7%) had history of drug use, 9 (1.3%) had history of taking ototoxic drugs, 99 (14.3%) had history of kernicterus, 157 patients (22.8%) had a history of hyperbilirubinemia, 15 (2.1%) history of meningitis, 57 (8.3%) had a history of seizure, one (0.1%) had a birth weight less than 1500 grams, 4 cases (0.06%) had history of hypoxia, 18 cases (2.6%) had history of trauma, one (0.1%) had CMV history, and one (0.1%) hearing loss due to syndromicity. On the other hand, it was determined that the probable causes of hearing loss were not related to the severity of hearing loss and age of the patients (p <0.05)

 

Conclusion: Although the prevalence of congenital hearing loss is low, it is important to identify and screen for postnatal congenital hearing loss, especially in people with risk factors known in this study, including patients with kernicterus.

 


Keywords

Congenital hearing impairment; Cochlear implantation; kernicterus

References

Lai, R., et al., Genetic diagnosis and cochlear implantation for patients with nonsyndromic hearing loss and enlarged vestibular aqueduct. J Laryngol Otol, 2012. 126(4): p. 349-55.

Deklerck, A.N., et al., Etiological approach in patients with unidentified hearing loss. International Journal of Pediatric Otorhinolaryngology, 2015. 79(2): p. 216-222.

Wonkam, A., et al., Aetiology of childhood hearing loss in Cameroon (sub-Saharan Africa). European Journal of Medical Genetics, 2013. 56(1): p. 20-25.

Espeso, A., D. Owens, and G. Williams, The diagnosis of hearing loss in children: Common presentations and investigations. Current Paediatrics, 2006. 16(7): p. 484-488.

Lammens, F., et al., Aetiology of congenital hearing loss: A cohort review of 569 subjects. International Journal of Pediatric Otorhinolaryngology, 2013. 77(9): p. 1385-1391.

Morzaria, S., B.D. Westerberg, and F.K. Kozak, Systematic review of the etiology of bilateral sensorineural hearing loss in children. International Journal of Pediatric Otorhinolaryngology, 2004. 68(9): p. 1193-1198.

Janeschik, S., et al., Influence of etiologic factors on speech perception of cochlear-implanted children. Cochlear Implants Int, 2013. 14(4): p. 190-9.

Varga, L., et al., Is deafness etiology important for prediction of functional outcomes in pediatric cochlear implantation? Acta Otolaryngol, 2014. 134(6): p. 571-8.

Rajput, K., T. Brown, and D.-E. Bamiou, Aetiology of hearing loss and other related factors versus language outcome after cochlear implantation in children. International Journal of Pediatric Otorhinolaryngology, 2003. 67(5): p. 497-504

Cristobal, R. and J.S. Oghalai, Hearing loss in children with very low birth weight: current review of epidemiology and pathophysiology. Arch Dis Child Fetal Neonatal Ed, 2008. 93(6): p. F462-8.

Haupt, H., F. Scheibe, and C. Ludwig, Changes in cochlear oxygenation, microcirculation and auditory function during prolonged general hypoxia. Eur Arch Otorhinolaryngol, 1993. 250(7): p. 396-400.

Zamani A, Karimi A, Naseri M, Amini E, Milani M, Sazgar A A, et al . Prevalence of hearing loss among high risk newborns hospitalized in hospitals affiliated to Tehran University of Medical Sciences. Tehran Univ Med J. 2010; 68 (1) :64-70

Russ SA1, Poulakis Z, Barker M, Wake M, Rickards F, Saunders K, Oberklaid F. Epidemiology of congenital hearing loss in Victoria, Australia. Int J Audiol. 2003 Oct;42(7):385-90.

Shahnaz Pourarian, Bijan Khademi, Narjes Pishva, Ali Jamali. Prevalence of Hearing Loss in Newborns Admitted to Neonatal Intensive Care Unit. Iran J Otorhinolaryngol. 2012 Summer; 24(68): 129–134.


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