Bailie R, Barnett M B, Fraser J F
Department of Anaesthetics, Guy's Hospital, London.
Anaesthesia. 1991 May;46(5):358-60. doi: 10.1111/j.1365-2044.1991.tb09543.x.
Fifty ASA grade 1 children, who presented for dental outpatient extraction were studied. They were randomly allocated to two groups after induction: group 1 had conventional nasal mask anaesthesia and group 2 anaesthesia with a laryngeal mask. Group 2 had fewer hypoxic episodes and significantly better arterial oxygen saturations (p less than 0.01). There was no difference between the groups as regards surgical access, difficulty of extraction or bleeding. The laryngeal mask appears to provide an alternative to conventional nasal mask anaesthesia, with better overall oxygenation and would seem particularly suitable for prolonged or difficult extractions.
对50名美国麻醉医师协会（ASA）1级的牙科门诊拔牙儿童进行了研究。诱导麻醉后，他们被随机分为两组：第1组采用传统鼻面罩麻醉，第2组采用喉罩麻醉。第2组的低氧发作次数较少，动脉血氧饱和度明显更高（p<0.01）。两组在手术入路、拔牙难度或出血方面没有差异。喉罩似乎可以替代传统鼻面罩麻醉，整体氧合效果更好，似乎特别适用于长时间或困难的拔牙手术。
