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目的：探讨合理用药决策系统（DRUGS）对我院妇产科抗菌药物使用的干预效果。方法：抽取我院妇产科2012年1－5月（干预前）、2012年6－11月（干预后）手术患者病历中使用抗菌药物的药品名称、术前用药时机、术中追加条件、术后停药时机、联合用药、用法用量、患者平均住院日以及费用等情况，对干预效果进行分析。结果：经过干预，抗菌药物使用品种更符合国家规定，Ⅰ类切口手术前未使用抗菌药物的比例由57.8％升至75.2％，Ⅱ类切口预防性用药时间在0.5～2 h的由80.2％升至97.0％；抗菌药物选择、联合用药以及用法用量的合理率分别由76.9％、64.9％、71.3％升至89.3％、84.6％、90.2％；平均住院日和抗菌药物人均费用均有明显降低，上述指标干预前后比较，差异均有统计学意义（P＜0.05或P＜0.01）。结论：DRUGS有效改善了我院妇产科不合理使用抗菌药物的现状，为医院抗菌药物的治理提供了新方法。“,”OBJECTIVE:To analyze intervention effect of Drug Rational Usage Guidelines System(DRUGS)on antibacterial agents use in department of obstetrics and gynecology in our hospital. METHODS:The application of antibacterial agents in depart-ment of obstetrics and gynecology in our hospital during Jan.-May(before intervention)and Jun.-Nov. 2012(after intervention)were extracted in respects of drug name,preoperative medication duration,perioperative additional condition,postoperative drug with-drawal time,drug combination,usage and dosage,average hospitalization stay,hospitalization cost. The intervention effects were analyzed. RESULTS:After intervention,the type of antibacterial agents were more in line with national regulations;the proportion of type Ⅰ incision surgery without antibacterial agents increased from 57.8% to 75.2%;the prophylactic application of antibacteri-al agents in type Ⅱ incision surgery within 0.5-2 h increased from 80.2% to 97.0%. The rate of reasonable antibacterial selection, drug combination,usage and dosage increased from 76.9%,64.9%,71.3% to 89.3%,84.6%,90.2%,respectively. The average hospitalization stay and antibacterial cost per capita decreased significantly. There was statistical significance among above indica-tors before and after intervention(P<0.05 or P<0.01). CONCLUSIONS:DRUGS effectively change irrational use of antibacterial agents in department of obstetrics and gynecology,which provide a new method for the management of antibacterial agents.