Monge Jodra V, Sanz Cuesta M T, Olalla García M T, Muñoz Carpio M F
Servicio de Medicina Preventiva, Hospital Ramón y Cajal, Madrid.
Rev Clin Esp. 1991 Nov;189(7):309-13.
The yearly changes in the accumulated incidence (AI), localizations and responsible microorganisms of nosocomial infections (NI) which occurred over the period from 1984 to 1988 in the Urology Department of the Ramón y Cajal Hospital are described and a study of the seasonal tendency of such infections is carried out with data obtained from the Watch Out System by means of the annual AI rates to a ponderate regression curve. The yearly decrease in the risk of suffering a NI (expressed as the slope of the graph line) was 2.05% which was statistically significant. The most frequent localizations of NI were urinary, superficial postoperative wounds and bacteremia, representing the three of them almost 90% of the total number of infections each year. Urinary infection was the localization which presented the greatest annual decrease in risk (2.21%). Bacteremia also presented a decrease, although this was not significant. On the contrary, the risk of acquiring an infection in a superficial postoperative wound experimented during this period a significant annual increase (0.36%). E. coli, S. marcescens, and P. aeruginosa were the microorganisms most frequently isolated in NI.
描述了1984年至1988年期间拉蒙·伊·卡哈尔医院泌尿外科发生的医院感染（NI）的累积发病率（AI）、感染部位及相关微生物的年度变化情况，并利用从“警惕系统”获取的数据，通过年度AI率对加权回归曲线进行研究，以探讨此类感染的季节性趋势。NI发病风险的年下降率（以图表线斜率表示）为2.05%，具有统计学意义。NI最常见的感染部位是泌尿系统、术后浅表伤口和菌血症，这三者每年几乎占感染总数的90%。泌尿系统感染是风险年度下降幅度最大的感染部位（2.21%）。菌血症的风险也有所下降，不过不具有统计学意义。相反，在此期间，术后浅表伤口发生感染的风险出现了显著的年度上升（0.36%）。大肠杆菌、粘质沙雷氏菌和铜绿假单胞菌是NI中最常分离出的微生物。
