持续听觉监测——我们能记录多少信息？

Continuous auditory monitoring--how much information do we register?

作者信息

Craven R M, McIndoe A K

机构信息

Sir Humphry Davy Department of Anaesthesia, Bristol Royal Infirmary, UK.

出版信息

Br J Anaesth. 1999 Nov;83(5):747-9. doi: 10.1093/bja/83.5.747.

DOI:10.1093/bja/83.5.747

PMID:10690137

Abstract

We have studied response times of 30 anaesthetists to a standardized episode of arterial oxygen desaturation in a simulated patient, randomized to the use of either a fixed or variable pitch pulse oximeter. We wished to determine if a variable auditory signal was important in detecting adverse events. A variable pitch pulse signal had a shorter time to recognition of desaturation (P < 0.0001), with a mean response time of 32 s, compared with 129 s for the fixed pitch signal.

摘要

我们研究了30名麻醉师对模拟患者动脉血氧饱和度标准化下降情况的反应时间，这些麻醉师被随机分配使用固定音高或可变音高脉搏血氧仪。我们希望确定可变听觉信号在检测不良事件中是否重要。与固定音高信号的平均反应时间129秒相比，可变音高脉冲信号识别血氧饱和度下降的时间更短（P < 0.0001），平均反应时间为32秒。