Abstract
High arterial concentrations of free fatty acids (FFA) induced by intravenous (i. v.) infusion of a fat emulsion, Intralipid “Vitrum” in heparinized dogs, raised total body oxygen consumption, on average, by 17 per cent (p<0.001) and myocardial oxygen consumption (MVO2), on average, by 19 per cent (<0.025). On the other hand, MVO2 remained unchanged by high plasma-concentrations of triglycerides, induced by i. v. infusion of Intralipid in non-heparinized dogs.