ObjectiveTo investigate the risk factors for surgical site infection (SSI) in patients after colorectal surgery, in order to provide a basis for regulation and implementation of preventive measures against SSI. MethodsFrom February to December 2012, a targeted surveillance on surgical site infection of "colon resection" and "rectum resection" surgery patients in the Department of Gastrointestinal Surgery was carried out. We analyzed the monitoring data, and explored the occurrence of postoperative SSI. At the same time, by case-control study, both single and multiple regression logistic analyses were performed on the 12 variables such as hypertension, diabetes mellitus duration during operation, America Society of Anesthesiologists score, grade of incision and so on to analyze the risk factors for SSI. ResultsAmong the 535 patients who underwent colorectal resections, 44 had SSI with an infection rate of 8.22%. Multiple logistic regression analysis showed that the length of hospital stay[OR=1.070,95%CI(1.033,1.109), P<0.001]and emergency surgery[OR=6.320,95%CI(1.932,20.669),P=0.002] were independent risk factors for SSI after colorectal resections. ConclusionThere are many risk factors for SSI after colorectal surgery. Through the implementation of targeted surveillance, we can find the main risk factors, which provides a basis for the regulation and implementation of intervention measures against SSI.
ObjectiveTo investigate and analyze the antibiotic use in Sichuan Province. MethodsAntibiotic use of inpatients was investigated in 23 hospitals on the day of June 25, 2011. ResultsThe percentage of antibiotic use was 42.4% in the total 27 144 inpatients, the range of which was between 24.3% and 63.3% for each hospital. And 63.8% of the antibiotic use was for therapeutic purpose, and 72.2% used only one antibiotic drug. A total of 36.9% of the patients receiving antibiotic treatment for therapeutic use sent samples for pathogenic detection. With the increase of the size of the hospital (judged by the number of beds), antimicrobial drug utilization decreased with statistical significance (χ2=411.834, P=0.000). With the improvement of regional economic level (judged by per-capita GDP of each region), the hospital antimicrobial usage decreased with statistical significance (χ2=500.093, P=0.000). The three types of antimicrobial drug most frequently used were other β-lactam antibiotics, penicillin and third generation cephalosporin. ConclusionAntibiotic use is reasonable in Sichuan Province as a whole. However, it is necessary to reduce irrational use of antimicrobial agents continuously, and to strengthen the management of clinical antibiotic usage among inpatients.