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Article
August 1977

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Author Affiliations

Baylor College of Medicine and The Methodist Hospital, Houston

Arch Otolaryngol. 1977;103(8):502-503. doi:10.1001/archotol.1977.00780250096018

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Abstract

AUDIOLOGIC QUIZ CASE 

Deborah Hayes, MA, Houston  A 46-year-old woman was evaluated by the audiology service in February 1974, for a hearing loss in the left ear that had been gradually progressive since 1944. Surgery was performed on the left ear in 1956, but there was no improvement in hearing.Results of pure-tone audiometry are shown in Fig 1. The right ear shows a mild, high-frequency, sensorineural loss. The left ear shows a severe primarily conductive loss, with an average air-bone gap of 40 dB.Results of impedance audiometry are shown in Fig 2. Both right and left tympanograms are normal (type A). Static compliance measures are within normal limits in both ears. Acoustic reflexes, with sound in left ear, probe in right ear, are present at levels consistent with the 40-dB conductive component in the left ear (115 to 120 dB HL). Acoustic reflexes, with sound in right ear,

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