目的:通过喉罩和气管插管两种不同的通气方式,比较不同全麻方法对高原地区轻度肺动脉高压患者的影响.方法:选取高原地区拟接受全麻腹部手术的轻度肺动脉高压患者100名,将患者随机分为A组和B组,麻醉诱导后,A组采用气管插管机械通气,B组采用LMA喉罩组机械通气.比较两组患者入室后诱导前(T0)、诱导后插管/喉罩前(T1)、插管/喉罩后5分钟(T2)、拔除即刻(T3)的平均动脉压、心率情况;比较组患者入室后诱导前(T0)、插管/喉罩后5分钟(T2)、拔除即刻(T3)术和后24小时(T4)两组患者静脉血中的皮质醇和“,”Objectives: to comparison the differences between the laryngeal mask and endotracheal tube in patients with mild pulmonary hypertension of plateau area. Methods: One hundred patients in plateau area undergoing abdominal surgery were divided into two groups randomly: Group A(endotracheal tube group) and Group B(laryngeal mask group).The values of the MAP and HR at 4 time points were recorded, the cor, IL-6 and TNF-a were also recorded at different time points. We also compared the PIP, Ppla, Pmean, FImax and FEmax. Results: The values of MAP and HR in group A were higher than those in group B at T2 and T3(P＜ 0.05), there was significant difference in PIP, Ppla, Pmean, FImax and FEmax between the two groups(P＜0.05). Conclusion: It is better to use the laryngeal mask during general anesthesia because of the stable Hemodynamics and Respiratory dynamics, also the inflammatory reaction is slight.