Prostaglandin E1 infusion compared with prostacyclin infusion in patients with refractory heart failure: effects on hemodynamics and neurohumoral variables.
1997
Prostaglandin E 1 or prostacyclin were randomly infused in 18 patients with severe chronic heart failure who did not respond to oral treatment. Maximally tolerated dosages of both agents increased cardiac index; however, only prostacyclin decreased mean arterial pressure and increased plasma norepinephrine significantly. Twelve hours after 50% peak dose reduction, atrial natriuretic peptide levels, right atrial pressure, mean pulmonary artery pressure, and mean arterial pressure continued to decrease with prostaglandin E 1 , whereas the increase in cardiac index was sustained; in contrast, at 50% prostacyclin dose reduction, cardiac index decreased toward baseline, suggesting that, with reduced dosages for chronic infusions, desired hemodynamic changes seem to be sustained with prostaglandin E 1 only.
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