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目的:探讨可视可塑型喉镜定位喉罩置入法在全身麻醉气管插管中的应用效果。方法:抽取2015年8月至2017年3月郑州市第二人民医院收治的行全身麻醉气管插管患者120例作为研究对象，按随机信封法分为A、B、C三组，每组40例。三组患者均使用可气管插管的第四代喉罩，其中A组患者给予可视可塑型喉镜辅助，B组患者给予纤维支气管镜辅助，C组患者给予盲探置入法。比较三组患者插管到位率、气道压力情况和并发症情况，并评估围术期不同时间点血流动力学和应激反应水平。结果:A组患者一次性喉罩置入到位率高于B、C组(n P<0.05)；A组患者喉罩置入理想位置时气道峰压(PIP)<20 cmHn 2O(1 cmHn 2O＝0.098 kPa)例数多于B、C组(n P<0.05)；A组患者在插罩即刻(T2)、拔罩即刻(T4)时刻血压(收缩压、舒张压)低于B、C组(n P0.05)；A组患者拔罩前(T3)、T4时刻皮质醇(Cor)水平低于B、C组(n P0.05)；A组患者并发症发生率低于B、C组(n P<0.05)。n 结论:可视可塑型喉镜定位喉罩置入法应用于全身麻醉气管插管患者，可提高插入喉罩位置准确率，减轻应激反应，在一定程度上改善血流动力学，减少相关并发症。“,”Objective:To study the application effect of laryngeal mask airway insertion positioned by laryngoscope assisted visual soft lens in tracheal intubation of general anesthesia.Methods:A total of 120 patients who underwent surgery and required general anesthesia tracheal intubation in Zhengzhou Second People’s Hospital from August 2015 to March 2017 were selected as the research subjects. They were divided into group A, group B and group C by random envelope method, with 40 cases in each group.All the three groups of patients used a fourth-generation laryngeal hood that could be tubed, patients in group A were given visual plastic laryngoscope, patients in group B were given fiberoptic bronchoscope, and patients in group C were given blind probe placement. The successful intubation rates, airway pressure and complications in the three groups were compared. Hemodynamics and stress response levels at different time points during the perioperative period were evaluated.Results:The success rate of one-time insertion in group A was significantly higher than that in groups B and group C (n P<0.05). Patients with peak inspimtory pressure (PIP) < 20 cmHn 2O (1 cmHn 2O=0.098 kPa) in group A when the laryngeal mask airway was placed in the ideal position were significantly more than those in group B and group C (n P<0.05). Blood pressure (systolic and diastolic blood pressure) of group A was significantly lower than that of group B and group C at immediate insertion (T2), immediate removal (T4),n P0.05); cortisol (Cor) levels in group A were significantly lower than those in group B and group C at before hood removal (T3) and T4 (n P0.05). The incidences of complications in group A were significantly lower than those in group B and group C (n P<0.05).n Conclusions:The application of laryngeal mask airway insertion positioned by laryngoscope assisted visual soft lens in tracheal intubation of general anesthesia can improve the accuracy of laryngeal mask airway insertion, alleviate stress response, improve hemodynamics to a certain extent, and reduce related complications.