手术切口感染病原菌分类与感染相关因素分析

Investigation of pathogenic types and infection related factors in surgical incision infections

目的观察与分析手术患者切口感染病原菌种类和感染相关因素,以预防控制切口感染。方法回顾性分析2012年12月-2013年12月于普外科进行手术治疗患者临床资料,根据其细菌学检验要求对患者手术切口感染进行调查研究,同时对感染相关危险因素进行筛查和分析,通过logistic线性回归分析对筛查结果进行分析。结果 1年中进行外科手术的患者共计2 123例,发生手术切口感染161例,感染率为7.58%,分离出病原菌161株,其中比例较高的分别为金黄色葡萄球菌占29.19%、铜绿假单胞菌占26.71%和大肠埃希菌占24.84%;年龄偏大、体质量偏重、Ⅱ类和Ⅲ类切口、手术持续时间和手术切口长度5个变量均为外科手术切口感染的高危险因素(P<0.05)。结论需针对医院外科感染病原菌进行密切检测,针对感染危险因素进行积极干预,以降低外科手术切口感染率。

OBJECTIVE To observe the pathogenic bacteria species and infection related factors in surgical incision infections so as to prevent and control incision infections.METHODS Retrospective analysis of the clinical data of patients treated with operation in our hospital＇s department of general surgery from Dec.2012 to Dec.2013 were conducted.The operation incision infection of the patients was investigated according to bacteriological examination requirement and the risk factors related to infections were screened and analyzed at the same time.The results were analyzed by logisticlinear-regression analysis.RESULTSIn 2123 patients who received surgeries in our hospital,161 cases of them got incision infections and the infection rate was 7.58%.Staphylococcus aureus（29.19%）,Pseudomonas aeruginosa（26.71%）and Escherichia coli（24.84%）accounted for a larger proportion in the isolated 161 strains.Age,heavy body weight,operation incision types,operation time and incision length were highrisk factors for incision infections（P〈0.05）.CONCLUSIONClose detection of pathogenic bacteria in the department of surgery is necessary.We should carry out positive interventions according to the risk factors so as to control the infections in surgical operation fundamentally.