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Article
July 1978

Reliabilities of Air and Water Caloric Responses

Author Affiliations

From the Department of Otolaryngology, Ohio State University College of Medicine, Columbus.

Arch Otolaryngol. 1978;104(7):380-382. doi:10.1001/archotol.1978.00790070018004
Abstract

• Air is a safer and more convenient caloric-irrigating medium than water, but many otologists are reluctant to use it because they suspect that it yields less reliable nystagmus responses. To compare reliabilities of air and water caloric responses, we subjected eight normal persons to 12 irrigations each of 50° C air, 44° C water, 24° C air, and 30° C water. Standard caloric-testing conditions were used, and nystagmus responses were recorded by the method of electronystagmography. We found that the reliabilities of air and water caloric responses were not significantly different. A single observation permitted estimation of response strength within approximately ± 5°/sec (95% confidence level), regardless of whether air or water was used as the irrigating medium.

(Arch Otolaryngol 104:380-382, 1978)

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