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Impedance Audiometry in the Squirrel MonkeyEffect of Middle Ear Surgery
James Jerger, PhD;
Larry Mauldin, BA;
Makoto Igarashi, MD
Arch Otolaryngol. 1978;104(4):214-224.
Abstract
• The two principal components of impedance audiometry, the tympanogram and acoustic reflexes, were measured preoperatively and postoperatively in seven squirrel monkeys subjected to experimental middle ear surgery. A probetone frequency of 1,200 Hz yielded both tympanograms and acoustic reflex thresholds roughly comparable to analogous data in humans at a probe-tone frequency of 220 Hz. Both tympanograms and acoustic reflex thresholds could be obtained reliably and with comparative ease. In general, postoperative data were modified in the expected fashion by the experimental middle ear surgery. Impedance audiometry appears to be a worthwhile and useful technique for monitoring middle ear status in the squirrel monkey.
(Arch Otolaryngol 104:214-224, 1978)
Author Affiliations
From the Department of Otorhinolaryngology and Communicative Sciences, Baylor College of Medicine, Houston.
Footnotes
Accepted for publication Nov 24, 1977.
Reprint requests to Department of Otorhinolaryngology and Communicative Sciences, Baylor College of Medicine, Houston, TX 77030 (Dr Jerger).
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