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Quality Control01:05

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Quality control is one of the three cyclical quality assurance activities that help keep a system under statistical control. Typical quality control activities include creating quality control charts, conducting proficiency testing, and documenting and archiving results.
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Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example, phenolphthalein is a colorless substance in any aqueous solution with a hydronium ion concentration greater than 5.0 × 10−9 M (pH < 8.3). In more basic solutions where the hydronium ion concentration is less than 5.0 × 10−9 M (pH > 8.3), it is red or pink. Substances such as phenolphthalein, which can be used to determine the pH of a solution, are...
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Hearing aids: indications, technology, adaptation, and quality control.

Ulrich Hoppe1, Gerhard Hesse2

  • 1Section of Audiology, Department of Otolaryngology, Head and Neck Surgery, University of Erlangen, Germany.

GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
|December 28, 2017
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Summary

Modern hearing aids offer improved sound quality and open fittings for sensorineural hearing loss. Early hearing aid use is crucial to prevent further auditory damage and cognitive decline.

Keywords:
audio therapyhearing aidhearing lossrehabilitationtinnitus

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Area of Science:

  • Audiology
  • Otolaryngology
  • Biomedical Engineering

Background:

  • Chronic sensorineural hearing loss often requires technical amplification for rehabilitation.
  • Recent advancements in hearing aid technology have significantly improved the quality of hearing rehabilitation.
  • Sophisticated signal processing enables features like reduced acoustic feedback and open fittings, even for higher hearing loss degrees.

Purpose of the Study:

  • To review the latest developments in hearing aid technology and amplification modalities.
  • To discuss the implications for hearing aid indication and provision.
  • To emphasize the importance of early hearing aid rehabilitation for patients with mild to moderate hearing loss.

Main Methods:

  • Review of recent advancements in hearing aid technology.
  • Analysis of current amplification modalities and their effectiveness.
  • Discussion of clinical implications based on existing research.

Main Results:

  • Improved hearing aid technology enhances sound quality and user acceptance through features like open fittings.
  • Early hearing aid intervention can mitigate risks such as auditory deprivation, social isolation, and cognitive decline.
  • Hearing aids can also benefit individuals with tinnitus by aiding sound masking and enhancing cortical inhibition.

Conclusions:

  • Despite technological progress, patient acceptance of hearing aids remains a challenge.
  • ENT specialists should advocate for early hearing aid provision, even for mild hearing loss.
  • Continued research and patient counseling are vital for optimizing hearing rehabilitation outcomes.