Related Experiment Video
Updated: May 17, 2026
06:59
Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
Bilateral Cochlear Implantation in Meningitis, Is it Mandatory? A Case Report
Mohammad Ajalloueyan1, Susan Amirsalari, Shahla Afsharpeyman
1Research Centre for New Hearing Technologies, Baqiyatallah University of Medical Sciences, Tehran, IR Iran.
Iranian Red Crescent Medical Journal
|October 30, 2012
Summary
Cochlear implantation is crucial for treating deafness caused by meningitis. Early intervention, before cochlear ossification, is vital, especially in neonates identified through auditory brainstem response testing.
Area of Science:
- Otolaryngology
- Pediatrics
- Infectious Diseases
Background:
- Meningitis poses a significant risk of acquired deafness in individuals of all ages.
- Neonatal sepsis and meningitis can lead to hearing loss, often undetected by standard screening.
- Prompt cochlear implantation is the standard for hearing rehabilitation.
Observation:
- Transient Evoked Otoacoustic Emissions (TEOAE) screening may miss cases of meningitis-induced deafness in neonates.
- Auditory Brainstem Response (ABR) testing is essential for identifying hearing deficits in at-risk neonates.
- Cochlear ossification can complicate or prevent successful cochlear implantation.
Findings:
- Meningitis is a leading cause of acquired deafness, necessitating timely intervention.
- Early detection of hearing loss in neonates is critical for optimal developmental outcomes.
- Cochlear implantation success is time-sensitive, requiring intervention before significant cochlear changes occur.
Implications:
- Enhanced neonatal hearing screening protocols incorporating ABR are needed.
- Timely cochlear implantation is crucial for preventing long-term developmental delays in deafened children.
- Further research into the long-term effects of meningitis on auditory pathways is warranted.
Related Concept Videos
01:22Bacterial Meningitis I: Introduction
Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
01:26Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...