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  2. Ventilation–perfusion coupling - Wikipedia

    en.wikipedia.org/wiki/Ventilation–perfusion...

    Smoking (long-term exposure to chemical irritants) can cause COPD, increasing the risk of lung cancer and heart disease. [14] Asthma is a common inflammatory disease causing the airway to swell and disturb breathing and ventilation(low V/A ratio). The cause is unrevealed, but allergens such as pollen, mold, respiratory infections, and air ...

  3. Pathophysiology of asthma - Wikipedia

    en.wikipedia.org/wiki/Pathophysiology_of_asthma

    GERD may be common in difficult-to-control asthma, but according to one study, treating it does not seem to affect the asthma. [33] When there is a clinical suspicion for GERD as the cause of the asthma, an Esophageal pH Monitoring is required to confirm the diagnosis and establish the relationship between GERD and asthma.

  4. Cardiac asthma - Wikipedia

    en.wikipedia.org/wiki/Cardiac_asthma

    Symptoms of cardiac asthma are related to the heart's inability to effectively and efficiently pump blood in a CHF patient. [2] This can lead to accumulation of fluid in and around the lungs (pulmonary congestion), disrupting the lung's ability to oxygenate blood.

  5. Nearly 1 in 10 Americans have asthma. Here's what causes it.

    www.aol.com/nearly-1-10-americans-asthma...

    Asthma is one of the most common lung diseases in the world, affecting some 262 million people worldwide and causing more than 450,000 deaths annually, per the World Health Organization.While ...

  6. Dynamic hyperinflation - Wikipedia

    en.wikipedia.org/wiki/Dynamic_hyperinflation

    Dynamic hyperinflation is a phenomenon that occurs when a new breath begins before the lung has reached the static equilibrium volume. [1] In simpler terms, this means that a new breath starts before the usual amount of air has been breathed out, leading to a build-up of air in the lungs, and causing breathing in and out to take place when the lung is nearly full.

  7. Bronchial hyperresponsiveness - Wikipedia

    en.wikipedia.org/wiki/Bronchial_hyperresponsiveness

    Bronchial hyperresponsiveness is a hallmark of asthma but also occurs frequently in people with chronic obstructive pulmonary disease (COPD). [2] In the Lung Health Study, bronchial hyperresponsiveness was present in approximately two-thirds of patients with non-severe COPD, and this predicted lung function decline independently of other ...

  8. Bronchoconstriction - Wikipedia

    en.wikipedia.org/wiki/Bronchoconstriction

    The most common cause of emphysema is smoking and smoking cessation is mandatory if this incurable disease is to be treated. Prevention of bronchoconstriction by this pathway is vital for people with emphysema and there are several anticholinergic medications that in combination with mucous thinning agents such as Guaifenesin cause significant ...

  9. Vaping — Even Without Nicotine — Has an Immediate Negative ...

    www.aol.com/vaping-even-without-nicotine...

    A recent study found that smoking an e-cigarette decreased the amount of oxygen being taken in by the lungs, regardless of whether it contained nicotine

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