Number and proportion of rats with positive microbiological growth for strains of extended-spectrum beta-lactamase producing <i>E. coli</i> in organs and tissues.

I - surgical group with hepatic ischemia and intestinal stasis; II - surgical group with hepatic ischemia without intestinal stasis; III - surgical control group; IV - non-surgical control group. *Fisher’s test comparing groups: I and IV p:0.02; II and IV p:0.04; III and IV p:0.02. Number and proportion of rats with positive microbiological growth for strains of extended-spectrum beta-lactamase producing E. coli in organs and tissues.