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Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Published on: January 29, 2014

Calibrated finger rub auditory screening test (CALFRAST).

D Torres-Russotto¹, W M Landau, G W Harding

¹Department of Neurology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA. drtorres@unmc.edu

|May 6, 2009

Summary

This summary is machine-generated.

The calibrated finger rub auditory screening test (CALFRAST) offers a simple, accurate, and reliable method for identifying hearing loss. This bedside tool can improve the efficiency of auditory screening in clinical settings.

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Area of Science:

Neurology
Audiology
Diagnostic Tools

Background:

Auditory function assessment is crucial in neurologic exams.
Hearing loss is a common disability.
Existing bedside auditory tests are often unreliable and cumbersome.

Purpose of the Study:

To evaluate the calibrated finger rub auditory screening test (CALFRAST) as a routine diagnostic tool.
To determine the accuracy and reliability of CALFRAST.
To compare CALFRAST with audiometric measures.

Main Methods:

Measured sound spectrum and intensity of finger rub against background noise.
Recruited patients and companions from a neurology clinic.
Assessed CALFRAST thresholds (strong and faint rub) and compared with audiometric measures (normal threshold 25 dB).

Main Results:

Examined 221 subjects (442 ears), with 39% having hearing loss.
CALFRAST-Strong 70 showed 100% specificity and positive predictive value.
CALFRAST-Faint 70 demonstrated 99% sensitivity and negative predictive value, with excellent discrimination (AUC 0.94) and reliability (kappa >0.8).

Conclusions:

CALFRAST is a simple, accurate, inexpensive, and reliable auditory screening test.
It effectively identifies auditory impairment.
CALFRAST can enhance the efficiency of routine auditory screening in clinical practice.