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Research by sports scientist John Dickinson found that 70 percent of UK-based members of the British swimming team had some form of asthma, as did a third of Team Sky cyclists, compared to a national asthma rate of eight to ten percent, [24] whilst a study by the United States Olympic Committee in 2000 found that half of cross-country skiers ...
The most common causes of dyspnea are cardiac (cardiac asthma) [10] and pulmonary conditions, like congestive heart failure with preserved ejection fraction, COPD, or pneumonia. [9] Less commonly, some cases of dyspnea can be attributed to neuromuscular diseases of the chest wall or anxiety.
Bronchospasm or a bronchial spasm is a sudden constriction of the muscles in the walls of the bronchioles.It is caused by the release (degranulation) of substances from mast cells or basophils under the influence of anaphylatoxins.
Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...
[9] [10] Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. [3] These may occur a few times a day or a few times per week. [4] Depending on the person, asthma symptoms may become worse at night or with exercise. [4] Asthma is thought to be caused by a combination of genetic and environmental factors. [3]
AERD affects an estimated 0.3–0.9% of the general population in the US, including around 7% of all asthmatics, about 14% of adults with severe asthma, and ~5-10% of patients with adult onset asthma. [2] [3] [8] AERD is uncommon among children, with around 6% of patients, predominantly female, reporting disease onset during childhood. [9]
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 ...
While the acronyms are similar, reactive airway disease (RAD) and reactive airways dysfunction syndrome (RADS) are not the same. [1]Reactive airways dysfunction syndrome was first identified by Stuart M. Brooks and colleagues in 1985 as an asthma-like syndrome developing after a single exposure to high levels of an irritating vapor, fume, or smoke.