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Biomedical subjects

W D Mustain

Publications and source records attributed to W D Mustain.

5 recordsLinked to original sources
PubMed1992

Inconsistencies in the correlation between loss of brain stem auditory evoked response waves and postoperative deafness.

This case underscores the difficulty of predicting postoperative hearing status from brain stem auditory evoked response (BAER) monitoring when wave I is preserved and all later waves are lost. During an operation involving the base of the skull, sudden and irreversible loss of all BAER waves beyond wave I occurred unilaterally. Wave I was preserved, with reduced amplitude and minimal latency shift. There was no permanent postoperative hearing sensitivity loss or speech discrimination loss.

Adolescent↗
PubMed1981

High frequency conductive hearing loss: a case presentation.

High frequency conductive hearing loss can result from partial obstruction of the external auditory canal, ear canal "collapse," or partial ossicular discontinuity. This report describes the evaluation and management of an unusual case of partial ossicular discontinuity with resultant high frequency conductive hearing loss.

Adolescent↗
PubMedDate not supplied

Psychoacoustic correlates of susceptibility to auditory fatigue.

The present study was designed to explore psychoacoustic correlates of susceptibility to auditory fatigue. Fifty-six normal-hearing subjects were given two monaural auditory fatigue tests. The high-frequency test consisted of a 3-min exposure to a 110 dB SPL, 2 kHz pure tone, with temporary threshold shift (TTS) measured at 4 kHz. The low-frequency test consisted of a 3-min exposure to a 115 dB SPL, 500 Hz pure tone, with TTS measured at 1 kHz. Amount of TTS and TTS recovery time were compared with performance on a test battery consisting of: (1) masking level differences; (2) brief-tone audiometry; (3) speech discrimination in noise; and (4) the threshold of octave masking test. A small negative correlation was found between amount of TTS and results of the threshold of octave masking test and the results of brief-tone audiometry. Subjects with larger amounts of TTS tended to have lower thresholds of octave masking and flattened threshold-duration functions.

Adolescent↗