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Online ISSN 1827-1596
Iovinelli G., Marinangeli F., Ciccone A., Ciccozzi A., Leonardis M., Paladini A., Varrassi G.
Department of Anesthesiology Intensive Care and Pain Management University of L’Aquila, L’Aquila, Italy
Aim. The aim of this study was to assess the usefulness of a lipid formulation containing a physical mixture of medium (MCT) and long chain triglycerides (LCT) compared with a long chain triglycerides emulsion in patients affected by chronic obstructive pulmonary disease with acute respiratory failure.
Methods. Twenty-four patients requiring mechanical ventilation were randomly selected in 2 groups and received total parenteral nutrition. Twelve patients received a MCT/LCT emulsion (50:50), the others used a 100% LCT emulsion. Nutritional status, metabolic rate, time of ventilatory support and weaning were evaluated.
Results. Both groups showed an improvement of all nutritional parameters evaluated; oxygen uptake, carbon dioxide output and respiratory gas exchange ratio were similar in both groups. The duration of mechanical ventilation was not significantly different; however, the time of weaning in the MCT/LCT group was significantly shorter. The longer weaning time in the LCT group patients could be related to vasoactive intermediates deriving from long chain fatty acids. The T-cell subsets, which were evaluated for both groups, showed a significant decrease of T helper-T suppressor ratio in the LCT group.
Conclusion. MCT/LCT emulsion is an effective lipid supplementation and should be considered the therapy of choice in COPD patients; however, the relationship between lipid emulsions administered and length of weaning requires further investigations.
language: English, Italian