氧化亚氮镇痛后弥散性缺氧的临床研究
Clinical study of diffusion hypoxia after nitrous oxide analgesia.
作者信息
Quarnstrom F C, Milgrom P, Bishop M J, DeRouen T A
机构信息
Department of Dental Public Health Sciences, School of Dentistry, University of Washington, Seattle.
出版信息
Anesth Prog. 1991 Jan-Feb;38(1):21-3.
In order to estimate the incidence of diffusion hypoxia, arterial oxygen saturation was measured in 104 healthy adult dental patients who were administered nitrous oxide-oxygen analgesia and who did not receive postcessation oxygen. Pretreatment saturation levels as determined by pulse oximetry ranged from 93% to 100%. When the nitrous oxide-oxygen administration ceased, the saturation levels were from 95% to 100%. The mean saturation dropped about 2% over the next 4 min and then stabilized. No patient had a posttreatment oxygen saturation of less than 92%.
为了评估弥散性缺氧的发生率，对104例接受氧化亚氮-氧气镇痛且未在停止用药后吸氧的健康成年牙科患者测量了动脉血氧饱和度。通过脉搏血氧饱和度测定法测得的治疗前饱和度水平在93%至100%之间。当停止给予氧化亚氮-氧气时，饱和度水平为95%至100%。在接下来的4分钟内，平均饱和度下降了约2%，然后趋于稳定。没有患者治疗后的血氧饱和度低于92%。
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