Prehistory of Auditory Neuropathy in Japan

Deficits in central auditory processing may occur in a variety of clinical conditions including traumatic brain injury, neurodegenerative disease, auditory neuropathy/dyssynchrony syndrome, neurological disorders associated with aging, and aphasia. Deficits in central auditory processing of a more subtle nature have also been studied extensively in neurodevelopmental disorders in children with learning disabilities, ADD, and developmental language disorders. Illustrative cases are reviewed demonstrating the use of an audiological test battery in patients with auditory neuropathy/dyssynchrony syndrome, bilateral lesions to the inferior colliculi, and bilateral lesions to the temporal lobes. Electrophysiological tests of auditory function were utilized to define the locus of dysfunction at neural levels ranging from the auditory nerve, midbrain, and cortical levels.

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Diagnosis of Auditory Neuropathy Spectrum Disorder in the Neonatal Intensive Care Unit Population

Otolaryngology ◽

10.1177/01945998211029836 ◽

2021 ◽

pp. 019459982110298

Author(s):

Chengetai Mahomva ◽

Yi-Chun Carol Liu ◽

Nikhila Raol ◽

Samantha Anne

Keyword(s):

Intensive Care Unit ◽

Information System ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Health Information ◽

Neonatal Intensive Care ◽

Health Information System ◽

Auditory Neuropathy ◽

Spectrum Disorder ◽

Nicu Admission

Objective To determine the incidence of auditory neuropathy spectrum disorder (ANSD) and its risk factors among the neonatal intensive care unit (NICU) population from 2009 to 2018 in the Pediatric Health Information System database. Study Design Retrospective national database review. Setting Population-based study. Methods The Pediatric Health Information System database was queried to identify patients ≤18 years old with NICU admission and ANSD diagnosis. Patient demographics, jaundice diagnosis, use of mechanical ventilation, extracorporeal membrane oxygenation, furosemide, and/or aminoglycosides were extracted. Multivariable linear regression was used to assess trends in incidence. Chi-square analysis was used to assess differences between patients with and without ANSD. Logistic regression was used to assess factors associated with ANSD. Results From 2009 to 2018, there was an increase in (1) NICU admissions from 14,079 to 24,851 ( P < .001), (2) total ANSD diagnoses from 92 to 1847 ( P = .001), and (3) annual total number of patients with ANSD and NICU admission increased from 4 to 16 ( P = .005). There was strong correlation between the increases in total number of NICU admissions and total ANSD diagnoses over time ( R = 0.76). The average ANSD incidence was 0.052% with no statistically significant change over 10 years. When compared with all NICU admissions, children with ANSD had a higher association with use of furosemide ( P < .001) and ventilator ( P < .001). Conclusion Despite a statistically significant increase in NICU admissions and total ANSD diagnosis, the incidence of ANSD in the NICU population has not increased from 2009 to 2018. Furosemide and mechanical ventilator use were associated with increased likelihood of ANSD.

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