膨肺吸痰法对心脏瓣膜置换术后患者机械通气相关肺部感染的影响

Influence of lung suctioning method on mechanical ventilation related pulmonary infection of patients after cardiac valve replacement

目的探讨膨肺吸痰法对心脏瓣膜置换术后机械通气相关肺部感染的影响。方法将102例机械通气的心脏换瓣手术后患者随机分为治疗组50例和对照组52例，治疗组采用膨肺吸痰法，对照组采用常规吸痰法。观察2组患者吸痰前后的肺部感染率、血气分析值，并记录2组的治愈率、痰细菌培养阳性率等。结果治疗期间，治疗组患者肺部感染发生率较对照组显著降低；对照组吸痰前后动脉血氧分压（PaO2）、动脉血氧饱和度（SaO2）比较有显著差异；治疗组吸痰前后上述指标比较，无显著差异；治疗组肺部感染治愈率明显高于对照组。结论吸痰前后膨肺能改善吸痰导致的低氧状况，降低肺部感染发生率，是一种安全、有效的护理措施。

Objective To observe the effect of lung suctioning method on mechanical ventilation related pulmonary infection of patients after cardiac valve replacement. Methods 102 patients of mechanical ventilation related pulmonary infection after cardiac valve replacement were randomly divided into the treatment group（50 patients）and the control group（52 patients）. The treatment group received interven- tion of lung suctioning method and the control group adopted routine sputum aspiration. The pulmonary in- fection rate and blood gas analysis before and after the treatment were observed and the cure rate and the positive rate of specimen of sputum were recorded. Results The pulmonary infection rate of the treatment group was lower than the control group;PaO2 and SaO2 were obviously different after treatment in the control group, but no difference in the treatment group. The cure rate of pulmonary infection patients in the treat- ment group was higher than those in the control group. Conclusions The intervention of lung suctioning method was a safe and effective method to improve hypoxemia and abate the rate of pulmonary infection.