Different Lipid Emulsions in Acute Lung Injury Patients

Inclusion: * Acute Lung Injury as a result of proven pneumonia (x-ray) or witnessed aspiration * Oxygenation factor ≤ 300 * \<= 72 hours since intubation or non-invasive ventilatory support by mask at screening * Expected need for parenteral nutrition for at least 5 days * Male or female ≥ 18 years of age Exclusion: * Exclusion of pregnancy in women with child-bearing potential * Cardiogenic pulmonary oedema * Previous (\< 1 month) or ongoing need for corticosteroids \>0.1 mg/kg/d prednisolon-equivalent or other immune suppressive treatment * Active or previous (\< 1 year) treatment for solid or haematologic malignancy * Serum triglycerides \> 300 mg/dl at screening * Alterations of coagulation (thrombocytes \<100 Giga/l), aPTT \> 60 sec, INR ≥ 2.5 without therapeutic intervention * Autoimmune disease or HIV (according to medical history) * Known or suspected drug abuse * General contraindications to infusion therapy :