[摘要] 目的 探讨新型内镜面罩在80岁及以上高龄老年患者门诊无痛胃镜检查中的应用效果及安全性。方法 对门诊拟行无痛胃镜检查的35例超高龄老年患者在检查过程中使用已获授权发明专利的新型内镜面罩供氧，氧流量5L/min，异丙酚行静脉麻醉,记录患者基础、检查前、检查中、检查后的脉搏氧饱和度（SpO2）、心率（HR）、平均动脉压（MAP），同时记录不良反应。结果 检查过程中患者SpO2较基础值明显增高且保持在较高水平（P<0.001）,无明显缺氧情况发生。MAP在麻醉过后有所降低（P<0.05），但血压下降范围在基础值20%以内，HR在检查过程中无明显变化，无其他并发症，患者休息即刻后回家或安返病房。结论 新型内镜面罩在门诊高龄患者无痛胃镜检查中应用，可提高吸入氧浓度，持续提供充足氧气，减少不良事件发生率，让患者在操作中更安全,临床应用价值高。

[Abstract] Objective To evaluate the safety and effects of a novel endoscopic mask used in outpatients aged over 80 years undergoing painless gastroscopy. Methods 35 aged outpatients undergoing painless gastroscopy were managed with 5L/min oxygen providing by a novel patented endoscopic mask and intravenous anesthesia by propofol. Pulse oxygen saturation(SpO2), heart rate(HR) and mean arterial pressure(MAP) were recorded before, during and after the operation, as well as basic datas. Adverse reactions were also recorded. Results SpO2 during the procedure were significant higher than basic SpO2 (P<0.001), and no obvious desaturation was recorded. MAP decreased after anesthesia(P<0.05), but decreasing value of blood pressure was less than 20% of basic mean arterial pressure. HR remained stable and showed no significant difference. All patiengts went back to ward or home safely after a short break. Conclusions The use of the endoscopic mask in aged outpatients during painless gastroscopy is effective and safe, which could increase fraction of inspired oxygen and provide adequate oxygen supply, showing high clinical applicable value.