Inhaled prostaglandin E1 for treatment of acute lung injury in severe multiple organ failure

Anesthesia and Analgesia
J MeyerM Booke

Abstract

Acute lung injury is characterized by hypoxemia due to pulmonary ventilation/perfusion-mismatching. I.v. administered prostaglandin E1 (PGE1), a vasodilator with a high pulmonary clearance, has been studied in acute lung injury. Inhalation of the vasodilators nitric oxide and prostacyclin improved oxygenation by selective dilation of the pulmonary vasculature in ventilated lung areas. In the present study, PGE1 inhalation was used for treatment of acute lung injury. Fifteen patients with acute lung injury defined as PaO2/fraction of inspired oxygen (FIO2) <160 mm Hg were treated with PGE1 inhalation in addition to standard intensive care. The drug was continuously delivered via a pneumatic nebulizer. Acute physiology and chronic health evaluation system II and multiple organ failure scores were (mean +/- SEM) 33 +/- 2 and 10 +/- 0.3, respectively. Inhaled PGE1 was administered for 103 +/- 17 h at a dose of 41 +/- 2 microg/h. The PaO2/FIO2 ratio increased from 105 +/- 9 to 160 +/- 17 mm Hg (P < 0.05) and to 189 +/- 25 mm Hg (P < 0.05) after 4 h and 24 h, respectively. PGE1 inhalation decreases in mean pulmonary artery pressure and central venous pressure were not statistically significant. Mean arterial pressure, pulmonary capil...Continue Reading

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