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Updated: Jul 23, 2026
Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
Published on: January 25, 2016
The challenge of a mature final diagnosis of hearing loss severity and early cochlear implantation
Mahmoud M Mahrous1,2, Yomna A El-Khattib3
1Audio-Vestibular Medicine Unit, Otorhinolaryngology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt. mahmoud.mahrous32@gmail.com.
Insights
Early cochlear implantation (CI) may not suit all infants, especially those with perinatal risk factors. Careful evaluation, including repeated tests and family feedback, is crucial before CI for infants under one year.
Area of Science:
- Pediatric Audiology
- Otolaryngology
- Developmental Pediatrics
Background:
- Cochlear implantation (CI) is increasingly performed on infants as young as four months.
- Perinatal risk factors for auditory neuropathy and delayed maturation may indicate reversible hearing loss.
- Early intervention is often prioritized, but a universal approach to CI may not be optimal.
Purpose of the Study:
- To caution against universal early cochlear implantation in infants.
- To highlight the potential for reversible hearing loss in certain infant populations.
- To identify pre-operative evaluation factors for infants under one year considered for CI.
Main Methods:
- Case study of four infants evaluated for cochlear implantation.
- Inclusion of infants with prematurity, Down syndrome, and family history of hearing loss.
- Assessment of hearing through subjective and objective measures, including Auditory Brainstem Response (ABR).
Main Results:
- None of the four cases were candidates for cochlear implantation.
- All cases demonstrated varying degrees of hearing improvement.
- Two cases had histories of prematurity, one had Down syndrome, and one had a family history of hearing loss.
Conclusions:
- Final CI candidacy requires repeated subjective/objective measurements and family feedback, particularly for preterm infants.
- Early Auditory Brainstem Response (ABR) in infants under one with comorbidities should be interpreted cautiously.
- ABR alone may not accurately reflect true hearing ability in infants with cognitive, neurologic, or developmental challenges.
Purpose:
Despite the recent trend of cochlear implantation (CI) at the age of six or even four months is prevalent in many centers around the world, clinicians should be cautious because perinatal risk factors of auditory neuropathy and/or delayed maturation carry the possibility of reversible hearing loss, yielding better auditory performance at the age of one year. The purpose of this study is to raise awareness that early CI may not be universal for all patients. In addition, we specify the factors to be considered in the pre-operative evaluation of CI in infants younger than one year.
Methods And Results:
This study describes four cases provisionally diagnosed with severe to profound sensorineural hearing loss that were presented to the CI clinic to determine candidacy for implantation. Two cases had histories of prematurity, one had Down syndrome, and one had a family history of hearing loss. None of the study cases were candidates for CI, as they had varying degrees of hearing improvement.
Conclusion:
Although early CI may yield better auditory performance, the final diagnosis should be made only after repeated subjective and objective measurements as well as family feedback on the child's auditory performance, especially in preterm children. Early auditory brainstem response (ABR) prior to the age of one year in children with cognitive, neurologic, or developmental comorbidities should be interpreted with caution, as ABR "alone" could not accurately represent the child's true hearing ability in this patient population.
