Physiologic Correlates of Increased Airway Responsiveness

  • Roland H. Ingram
Conference paper


The airway caliber change that occurs immediately following a deep inhalation (DI) in asthmatic subjects varies. There may be a decrease in airway caliber — i.e. bronchial constriction — or there may be no change, or dilation of the airways may occur. I would like briefly to review data which support the idea that when the clinical state and the stimulus used to produce bronchial obstruction are considered, there is a pattern that might be of value clinically and epidemiologically.


Deep Breath Dilator Effect Airway Caliber Neutrophilic Leukocyte Increase Airway Responsiveness 
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Copyright information

© Springer-Verlag/Wien 1992

Authors and Affiliations

  • Roland H. Ingram
    • 1
  1. 1.Jr, Hennepin County Medical Center and University of MinnesotaUSA

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