Effect of hemocarboperfusion on organ blood flow and survival in porcine endotoxic shock

Critical Care Medicine
V A OdnopozovM J Breslow

Abstract

To evaluate the effects of hemocarboperfusion on hemodynamics, organ blood flow, and survival in endotoxin shock. Prospective, placebo-controlled, animal trial. Research laboratory in a major university teaching hospital. Pentobarbital-anesthetized pigs. Twenty-eight pentobarbital-anesthetized pigs (18.5 to 22.3 kg) received 100 micrograms/kg of Escherichia coli endotoxin (lipopolysaccharide 0127) over 30 mins. Group 1 animals (n = 14) were controls and had blood diverted through an extracorporeal circuit without activated charcoal for 60 mins after lipopolysaccharide infusion. Group 2 animals (n = 14) underwent nonpulsatile hemocarboperfusion (activated charcoal SCN-1K). Mean arterial pressure, cardiac output, systemic vascular resistance, mean pulmonary arterial pressure, pulmonary vascular resistance, oxygen delivery, and regional blood flow (radiolabeled microsphere technique) were determined at baseline and every 30 mins for 150 mins. Results are presented as mean +/- SD. Parameters in the two groups were compared by two-way analysis of variance. A p < .05 was considered significant. The survival rate was ten (71%) of 14 animals in group 1 compared with 14 (100%) of 14 animals in group 2 (p < .05, Fisher's exact test). The...Continue Reading

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