Munro K J, Bonnington C L
Hearing and Balance Centre, Institute of Sound and Vibration Research, University of Southampton, UK.
Br J Audiol. 1998 Oct;32(5):301-4. doi: 10.3109/03005364000000081.
A useful alternative to the traditional water caloric is to use an air stimulus. However, the caloric test has not been standardized and a range of parameters are being used in different audiology clinics. The aim of this study was to determine cold air parameters that resulted in a similar slow-component eye velocity to that for water irrigation. Twelve normal subjects underwent caloric testing using air temperatures in the range 18-33 degrees C. The duration and air-flow rate were held constant at 60 s and 5 l/min. A water irrigation at 30 degrees C for 30 s and delivering 150 ml resulted in a mean slow-component eye velocity of 17 degrees/s. An equal response was obtained with an air temperature of 21.0 degrees C. Further work is required to find equivalent air and water responses for other combinations of parameters.
传统水刺激法的一种有效替代方法是使用空气刺激。然而，冷热试验尚未标准化，不同的听力诊所使用的参数范围各不相同。本研究的目的是确定能产生与水灌注相似的慢相眼速的冷空气参数。12名正常受试者接受了冷热试验，使用的空气温度范围为18 - 33摄氏度。持续时间和空气流速分别保持在60秒和5升/分钟不变。30摄氏度的水灌注30秒，输送150毫升，平均慢相眼速为17度/秒。空气温度为21.0摄氏度时获得了相同的反应。需要进一步开展工作，以找到其他参数组合下等效的空气和水刺激反应。
