目的 探讨分析便携式呼吸机在院前急救危重患者中的应用。方法 选取我院2005年8月至2014年12月期间接收治疗 的100例急救危重需采用心肺复苏治疗的患者作为研究分析对象，将所选患者按急救方式分为对照组和研究组(患者 和患者家属均知晓本次救治方案，并签字确认)，每组各50例，对照组采用人工气囊辅助呼吸，研究组采用便携式 呼吸机，比较两组患者抢救状况和生命体征指数。结果 比较两组患者抢救后心肺复苏成功率，研究组(34%)明显高 于对照组(10%)，且数据存在一定差异，具有统计学意义(P＜0.05)。比较两组患者抢救过程中各体征指数，包含 HR、SPO2、SBP、DBP等几个方面，研究组明显优于对照组，且数据存在统计学意义(P＜0.05)。结论 院前急救危重 患者抢救过程中可采用便携式呼吸机，此方法可使心肺复苏成功率提高，患者各项生命体征指数得到更好的改善。

Objective To probe into the application of portable ventilator in critically ill patients in prehospital. Methods 100 patients with critically ill and who were treated with cardiopulmonary resuscitation in our hospital from August, 2005 to December, 2014 were taken as the research objects, and these patients were randomly divided into the control group and the study group according to first aid (patients and patients' families were aware of the treatment plan, and signed confirmation), with 50 patients in each group. In the control group, they were given the artificial balloon assisted respiration while in the study group, they were treated with the portable ventilator. Then, the rescue status and vital signs index of two groups of patients were compared. Results The success rate of cardiopulmonary resuscitation in two groups were compared while in the research group of 34% was significantly higher than that in the control group of 10%, and the data had statistically significant (P<0.05). In addition, the index of every sign in the rescue process of two groups of patients were compared including SPO2, SBP, DBP, HR and other aspects, which in the study group was significantly better than those in the control group, and the data had statistically significant (P<0.05). Conclusion The portable ventilator can be used in critically ill patients in prehospital which this method can improve the success rate of cardiopulmonary resuscitation, and improve the vital signs index of patients.