What is bronchial hyperreactivity?
What is bronchial hyperreactivity?
Bronchial hyperresponsiveness is currently defined as an increase in sensitivity to a wide variety of airway narrowing stimuli. Most patients with asthma and chronic obstructive pulmonary disease (COPD) exhibit such an enhanced sensitivity.
What causes bronchial hyperreactivity?
Bronchial hyperresponsiveness is known to occur during acute airway inflammation/injury caused by ozone exposure, viral infection, etc., and the involvement of an augmented reflex bronchoconstriction in these pathophysiological conditions has been clearly documented (Barnes, 1986; Canning, 2006; Lauzon and Martin, 2016 …
What is the role of bronchial hyperreactivity in the development of asthma?
Bronchial hyperreactivity (BHR) is an important measure of airway lability in asthma and may be measured by bronchial challenge, commonly after exercise, after inhalation of cold air or with pharmacologic stimuli such as methacholine.
How is bronchial hyperreactivity treated?
Combined use of BDP and inhaled beta 2-agonists further improved bronchial hyperresponsiveness. This can be achieved by concurrent use of BDP, which has a potent anti-inflammatory effect.
What is the role of bronchoconstriction?
Bronchoconstriction is an important and effective component of the airway defense reflexes protecting the lung and the rest of the body against inhaled irritants and airborne toxins such as cigarette smoke and acid aerosol.
What are the complications of bronchial asthma?
What are the complications of asthma?
- constant fatigue.
- frequent leave from work or school due to constant asthma flare-ups.
- pneumonia.
- increased mucus production.
- thickening and narrowing of bronchial tubes which can become permanent leading to respiratory failure.
- respiratory failure.
- severe chest pain.
