结论结肠镜诊疗时应用笑气吸入镇痛起效快，效果好，操作简便安全。
Conclusion the effect of using nitrous oxide to ease the pain during diagnosis and therapy with colonoscopy is fast and obvious, and the operation is easy and safe.
癌性疼痛患者镇痛起效时间和持续时间以及生活质量的改善，可能与细胞免疫功能的正向调节有关。
The improvement of the analgesia time and the life qualities of patients is probably related with the positive adjustment of cellular immunity.
结论碧兰麻用于口腔治疗麻醉具有毒副作用小、起效快、渗透力强、出血少、镇痛效果好等优点，可广泛用于口腔诊疗的麻醉。
Conclusions The Primacaine can be widely used in the oral cavity diagnosis with little noxious effect, good efficaciousness, strong osmosis, little hemorrhage and excellent pain-easing effect.
结果两组药物镇痛效果、起效时间差异无统计学意义。
Results There were no statistical differences in analgetic effect and beginning time between the two groups.
结果两组药物镇痛效果、起效时间差异无统计学意义。
Results There were no statistical differences in analgetic effect and beginning time between the two groups.
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