Abstract
In a previous study [1] we have shown that patients with chronic obstructive pulmonary disease (COPD) during acute respiratory failure had an increased inspiratory neuromuscular drive to breathe. Indeed, the latter which was assessed by measurement of tracheal occlusion pressure (P0.1) amounted to 8±1 cmH20 at the onset of the acute respiratory failure during room air breathing [1]. In normal persons, such P0.1 values are obtained for a level of minute ventilation (V̇E) of the order of 50 to 70 1/min [2]. This high inspiratory neuromuscular output will therefore impose a very high load on the respiratory muscles of these patients. Furthermore, as a result of pulmonary hyperinflation, the inspiratory muscles of these patients operate at a mechanical disadvantage. This implies that during acute respiratory failure, the activity of the respiratory muscles of COPD patients is very high and probably cannot be sustained for a prolonged period without development of inspiratory muscle fatigue.
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© 1987 Springer-Verlag Berlin Heidelberg
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Aubier, M. (1987). Role of Respiratory Muscles in Weaning. In: Vincent, J.L. (eds) Update 1987. Update in Intensive Care and Emergency Medicine, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83042-6_29
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DOI: https://doi.org/10.1007/978-3-642-83042-6_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-17576-6
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