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- W2022217807 abstract "The characteristics of two types of intraperitoneal (i.p.) soilage sepsis models, autologous fecal inoculum (FEC) and a pure culture of Escherichia coli (EC), were studied in 26 male Yucatan minipigs (20-30 kg). Early (1-4 h) and late (24-72 h) changes were different between the two groups. The EC group was characterized early by hypotension, low cardiac output, and increased systemic and pulmonary vascular resistances, along with leukopenia, hypoglycemia, lactacidemia, and elevated blood urea nitrogen. Of the pigs in the EC group that survived the early effects, there were few significant differences in physiological parameters, compared to control pigs, that would indicate ongoing pathological processes. In contrast, the FEC group pigs demonstrated early hypotension, but with increased cardiac output and reduced systemic vascular resistance. Other parameter changes were similar to those seen in the EC pigs, but to a lesser degree, with the exception of elevations in serum lactate dehydrogenase. Also in contrast to the EC group, most of the changes in the FEC group persisted in later days, and FEC pigs demonstrated leukocytosis. There were also greater elevations in circulating lipopolysaccharide (LPS) concentrations in the EC group that returned later to baseline levels. In the FEC group, there were persistently elevated LPS concentrations over 72 h. These observations suggest that pigs challenged with intraperitoneal E. coli demonstrated an initial acute peritonitis and damaging physiologic effects of high levels of circulating LPS. Survivors in this group improved and were physiologically stable after 24 h. Pigs that received i.p. autologous feces developed an early acute peritonitis phase with lower levels of circulating LPS, and later developed pronounced peritoneal reaction as demonstrated by multiple abdominal abscesses, pyogenic granuloma formation, and adhesions with physiological evidence of developing sepsis over 72 h. These observations indicate that i.p. EC models evoke a systemic response not unlike intravenous administration of LPS or EC, however, the FEC model produced a systemic response akin to a slower developing septic process." @default.
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- W2022217807 date "1994-03-01" @default.
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- W2022217807 title "PORCINE PERITONEAL SEPSIS" @default.
- W2022217807 doi "https://doi.org/10.1097/00024382-199403000-00008" @default.
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