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- G Mols, V Kessler, A Benzing, M Lichtwarck-Aschoff, K Geiger, and J Guttmann.
- Department of Anaesthesiology and Critical Care Medicine, University of Freiburg, Germany.
- Br J Anaesth. 2001 Feb 1; 86 (2): 176-82.
AbstractWhen managing patients with acute respiratory distress syndrome (ARDS), respiratory system compliance is usually considered first and changes in resistance, although recognized, are neglected. Resistance can change considerably between minimum and maximum lung volume, but is generally assumed to be constant in the tidal volume range (V(T)). We measured resistance during tidal ventilation in 16 patients with ARDS or acute lung injury by the slice method and multiple linear regression analysis. Resistance was constant within V(T) in only six of 16 patients. In the remaining patients, resistance decreased, increased or showed complex changes. We conclude that resistance within V(T) varies considerably from patient to patient and that constant resistance within V(T) is not always likely.
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