Martínez-Cruz CF, Ramírez-Vargas MN

Language: Spanish
References: 27
Page: 54-69
PDF size: 72.15 Kb.

ABSTRACT

The hearing loss acquired during adverse events in the neonatal period has not been entirely clarified.
Objective: To determine the site of auditory lesion in a group of school children with sensory-neural hearing loss and history of being in a neonatal intensive care unit (NICU).
Material and methods: Twelve school children were studied with a mean age of 9.3 ± 2 years, pure tone Audiometry, tympanometry, SISI Test and Tone Decay Test were done. Some variables associated to auditory lesions were documented in children discharged from NICU.
Results: The average stay in the NICU was of 22 ± 10 days; mean gestational age at birth was 32.2 ± 2 weeks and a weight of 1552 ± 795 g.
The hearing loss observed in our sample was severe degree, the SISI test was positive in 70% of the analyzed frequencies and the Tone Decay tests were negative.
The most frecuent audiologic risk factors, documented in the sample were exposure to amikacyn followed by furosemide application, and neonatal hyperbilirrubinemia.
Conclusions: The results of the present study are suggestive of a bilateral cortipathy with lesion to the hair cell of the organ of Corti, possibly due to exposition to ototóxic drugs.

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