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Slow expiration with the glottis opened in the lateral posture (ELTGOL) is an ACT whose effect is based on increasing airflow resistance and air flow-mucus interaction by reducing the diameter of the peripheral airways of the inferolateral lung. This reduction in diameter results from the weight of the superolateral lung and mediastine, from inferolateral hemidiaphragm displacement in a cephalad direction due to compression of the viscera, and from slow and prolonged expiration, which confers the added benefit of avoiding airway collapse.
(摘自Munoz G,de Gracia J, Buxo M, Alvarez A, Vendrell M. Long-term benefits of airway clearance in bronchiectasis: a randomised placebo-controlled trial. Buropean Respiratory Journal. 2018:51(1):1 701926)
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