病房空气质量对开腹阑尾切除术后切口感染的影响

Influence of air quality in wards on incision infection after open appendectomy

目的探讨病房空气质量对开腹阑尾切除术后切口感染的影响。方法选择行开腹阑尾切除术患者430例,分为研究组和对照组;研究组入住安装有空气消毒机的病房,对照组入住采用自然通风法消毒的病房。比较两组患者术后切口感染率、住院天数、住院费用及切口感染细菌类型。结果与对照组相比,研究组术后切口感染率、术后住院天数、住院费用均减少(P<0.05);对照组病房空气细菌数随时间延长增加的幅度大于研究组(P<0.05);两组患者切口感染细菌以革兰阴性菌为主,但两组间细菌类型差异无统计学意义(P>0.05)。结论改善病房空气质量可以降低开腹阑尾切除术后切口感染率,减少患者住院天数和住院费用。

Objective To investigate the effect of air quality in wards on the incision infection after open appendectomy .Methods A total of 430 patients underwent open appendectomy were divided into study group and control group .The study group was admitted to the ward with air disinfection machine while the control group was admitted to the ward with natural ventilation .The postoperative incision infection rate ,hospital stay ,hospitalization costs ,bacterial species of incision infection were compared between the two groups .Results Compared to the control group ,the postoperative incision infection rate ,postoperative hospital stay and hospitalization costs decreased in the study group（P〈0.05）.The number of airborne bacteria increased over time ,and the increment in the control group was greater than that in the study group（P〈0.05）.The common bacteria of incision infection was Gram-negative bacteria in the two groups ,but there was no significant difference in the bacterial species between the two groups （P〉0.05）.Conclusion Improving air quality in wards not only reduces the incision infection rate significantly after open appendectomy but also reduces hospital stay and hospitalization costs .