{"title":"Predicting peritoneal contamination \u0000with enterobacteria producing extendedspectrum beta-lactamases and choosing \u0000empirical antibacterial therapy for \u0000postoperative peritonitis in cancer patients","authors":"I. F. Shishlo, S. Krasny, Yu. N. Dolgina","doi":"10.52532/2521-6414-2021-2-60-4-8","DOIUrl":"https://doi.org/10.52532/2521-6414-2021-2-60-4-8","url":null,"abstract":"Enterobacteriaceae family microorganisms, \u0000specifically E. coli and K. pneumoniae isolates, are the most \u0000common activators of postoperative peritonitis in oncology. \u0000Many of these microorganisms produce extended-spectrum beta-lactamases (ESBL). The deemed resistance of ESBL-producing \u0000enterobacteria to all β-lactam antibiotics, except for carbapenems, leads to ineffectiveness of empiric antibiotic therapy. \u0000Purpose of the study: To define the risk factors of peritoneal contamination with ESBL-producing enterobacteria for \u0000choosing optimal empirical antibacterial therapy on the example of a specific cancer patient with postoperative peritonitis. \u0000Results: Independent risk factors of peritoneal contamination with ESBL-producing enterobacteria included “the administration of antibiotics for more than three days” (OR 106, \u000095% CI 21.0-537, p<0.001), “two or more relaparotomies” \u0000(OR 2.66, 95% CI 1.32-5.34, p =0.006), and “postoperative \u0000preventive antibiotic treatment” (OR 0.17, 95% CI 0.04-0.75, \u0000p =0.02). The obtained prognostic model allowed predicting \u0000the infection with ESBL-producing enterobacteria before establishing the postoperative peritonitis microbial etiology. \u0000The model sensitivity was 94.7%, overall predictive accuracy \u0000was 73.1. \u0000Conclusion: Prolonged administration of antibiotics \u0000(3rd-generation cephalosporins and/or fluoroquinolones) after cancer surgery to prevent surgical infections is the main \u0000independent risk factor of peritoneal contamination with \u0000ESBL- producing enterobacteria.","PeriodicalId":19480,"journal":{"name":"Oncologia i radiologia Kazakhstana","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81792000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}