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  • Chronic
  • During mechanical ventilation, compliance can be influenced by 3 key physiologic factors: Lung compliance Chest wall compliance Airway resistance Lung compliance is influenced by a variety of primary abnormalities of lung parenchyma, both chronic and acute. (wikipedia.org)
  • acute
  • Rationale: Airway narrowing is maintained for a prolonged period after acute bronchoconstriction in humans in the absence of deep inspirations (DIs). (edu.au)
  • lung volume
  • This method provides an assessment in each subject of degree of association between airway resistance and lung volume and uses the individual's unique slope, relating resistance to volume in order to correct resistance to a single lung volume. (clinsci.org)
  • 4. Analysis of covariance adequately corrects airway resistance for variations in lung volume but further studies are required to validate its precision and sensitivity. (clinsci.org)
  • changes
  • Effects of Changes in Blood Gas Tension and Carotid Sinus Pressure on Airway calibre of Dogs. (asahq.org)
  • pressure
  • The airway resistances of newly commercialized PanjeTM Low Pressure devices could not be distinguished from those calculated for previously commercialized, Regular Pressure Voice Button devices. (asha.org)
  • Airway resistances of Blom-Singer® Low Pressure devices increased systematically as a function of flow rate. (asha.org)
  • subjects
  • Objectives: To determine whether maintenance of airway smooth muscle (ASM) shortening is responsible for the persistence of airway narrowing in healthy subjects following transient methacholine (MCh)-induced bronchoconstriction. (edu.au)
  • symptoms
  • Heliox has been used medically since the 1930s, and although the medical community adopted it initially to alleviate symptoms of upper airway obstruction, its range of medical uses has since expanded greatly, mostly because of the low density of the gas. (wikipedia.org)
  • lung
  • Severe exposure may result in changes in upper and lower airways resulting in an acute lung injury, which may not be present until several hours after exposure. (wikipedia.org)
  • remains
  • In physiology, dead space is the volume of air which is inhaled that does not take part in the gas exchange, either because it (1) remains in the conducting airways, or (2) reaches alveoli that are not perfused or poorly perfused. (wikipedia.org)