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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Acute Respiratory Failure-II01:21

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
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Auditory Pathway01:15

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Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
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Auditory Performance in Recovered SARS-COV-2 Patients.

Amiel A Dror1,2,3, Najla Kassis-Karayanni1,2,3, Adi Oved1,2,3

  • 1Department of Otolaryngology-Head and Neck Surgery.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
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This study found no evidence of hearing loss in recovered COVID-19 patients using otoacoustic emissions and auditory brainstem response tests. Further long-term research is needed to explore potential links between COVID-19 and auditory symptoms.

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Area of Science:

  • Otolaryngology
  • Neuroscience
  • Infectious Diseases

Background:

  • COVID-19 primarily affects respiratory and olfactory systems.
  • Emerging reports suggest potential impacts on the auditory system.
  • Previous studies indicated changes in otoacoustic emission (OAE) signals in SARS-CoV-2 positive patients.

Purpose of the Study:

  • To assess the effect of COVID-19 infection on auditory performance in recovered patients.
  • To investigate subclinical auditory changes in asymptomatic individuals post-COVID-19 recovery.
  • To determine if SARS-CoV-2 infection predisposes to hearing loss.

Main Methods:

  • Cross-sectional study involving recovered SARS-CoV-2 patients and matched controls.
  • Participants had normal auditory history and underwent audiological assessments.
  • Evaluated auditory function using otoacoustic emissions (OAE) and auditory brainstem response (ABR) measurements.

Main Results:

  • No significant differences were observed in transitory evoked otoacoustic emissions (TEOAE) between groups.
  • Distortion product otoacoustic emissions (DPOAE) showed no significant differences between recovered patients and controls.
  • Auditory brainstem response (ABR) measurements indicated preserved retrocochlear function in the study cohort.

Conclusions:

  • Recovered asymptomatic COVID-19 patients show no evidence of cochlear or retrocochlear dysfunction.
  • OAE and ABR measurements did not reveal hearing deficits in this cohort.
  • Long-term studies with larger cohorts are recommended to fully understand COVID-19's impact on hearing.