Mann M S, Woodsford P V, Jones R M
Anaesthesia. 1985 Jan;40(1):8-11. doi: 10.1111/j.1365-2044.1985.tb10493.x.
The effects of three different anaesthetic carrier gases on middle-ear pressure in the operative and postoperative periods was assessed. Patients receiving oxygen and oxygen-enriched air did not have significant changes in middle-ear pressure. The changes associated with the use of nitrous oxide as the carrier gas were reversed with return of pharyngeal reflexes or after prolonged inhalation of 100% oxygen. In patients undergoing middle-ear surgery or those with pre-existing middle-ear disease, we suggest that oxygen-enriched air is the anaesthetic carrier gas of choice.
评估了三种不同麻醉载气在手术期和术后对中耳压力的影响。接受氧气和富氧空气的患者中耳压力无显著变化。与使用一氧化二氮作为载气相关的变化在咽反射恢复或长时间吸入100%氧气后得到逆转。对于接受中耳手术的患者或已有中耳疾病的患者，我们建议富氧空气是首选的麻醉载气。
