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Lancet. 1988 Sep 24;2(8613):699-702.

Effects of prolonged naloxone infusion in septic shock.

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  • 1Department of Medicine, University of Manitoba Faculty of Medicine, Winnipeg, Canada.


Fourteen patients suffering sixteen episodes of septic shock requiring inotrope and/or vasopressor support were randomised to receive a 30 micrograms/kg naloxone intravenous bolus followed by a 30 micrograms/kg/h infusion or an equivalent volume placebo bolus and infusion for 8-16 h in a double-blind study. pH and pulmonary wedge pressure were kept constant, and inotrope and/or vasopressor were titrated to maintain a preselected mean blood pressure. Inotrope/vasopressor requirements in the naloxone-treated group were significantly lower than those in the control group at 8 h (eight patients in each group, p less than 0.005) and at 16 h (five patients in each group, p less than 0.02). Late but significant improvements in stroke volume (p less than 0.02) and heart rate (p less than 0.05) were also noted in the eight naloxone-treated patients.

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