Table 3. Number and proportion of rats with positive microbiological growth for strains of extended-spectrum beta-lactamase producing E. coli in organs and tissues.

Organ/Tissue	Groups
	I	II	III	IV	P
	n = 15	n = 15	n = 8	n = 8
Lung	10 (67%)	9 (60%)	6 (75%)	1 (13%)	0.04 *
Spleen	3 (20%)	3 (20%)	2 (25%)	0	0.54
Liver	8 (53%)	8 (53%)	6 (75%)	3 (38%)	0.51
Portal Blood	2/12 (17%)	1 (6%)	0/7	1 (13%)	0.64
Systemic Blood	3/12 (25%)	1 (6%)	1/7 (14%)	0	0.32
Mesenteric lymph nodes	7 (47%)	3 (20%)	4 (50%)	1 (13%)	0.17
Cervical lymph nodes	3 (20%)	4 (27%)	1 (13%)	1 (13%)	0.80

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.