Study On Ratio Of VRE Colonized In Ambulant Clinic Patients And The Risk Factors Of VRE Colonization

ObjectiveTo investigate the ratio of VRE colonization in ambulant clinic old patients, and the risk factors of VRE colonization. To study the susceptibility of these VRE to 7 kinds of antimicrobial agents.MethodsCollect the rectal swabs of 274 patients from ambulant clinic, enterococcal isolates were determined through the screen test. Then determined the susceptibility of these enterococcal isolates by Kirby - Bauer disk diffusion test. Ques-tionaires about risk factors of VRE colonization were made on these 274 patients.Results5 VRE isolates were determined from the 274 old patients by rectal swabs culture. One was E. faecalis, the other four were E. faecium. The colonization ratio of VRE in ambulant clinic old patients was 1.8%. The result of susceptibility test to the 7 kinds of antimicrobial agents is, 5 isolates were susceptible to teicoplanin, all the isolates were resistant to Gentamicin, Penicillin G, Erythro-mycin, Ciprofloxacin, Ampicillin. The risk factors associated with VRE colonization in ambulant clinic old patients include the times to visit ambulant clinic, having been in ICU, having used Vancomycin, having used antu - anaerobic ac-tivity agents in the last 1 year, if such patients had cancer.ConclusionsThe ratio of VRE colonization in ambulant clinic old patients is low (1. 8% ) , and the percent of VRE in overall colonized enterococci is small. The colonized VRE in ambulant clinic old patients may come from hospitals.