Ads
related to: asthma spasmssmartholidayshopping.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
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 .
Asthma phenotyping and endotyping has emerged as a novel approach to asthma classification inspired by precision medicine which separates the clinical presentations of asthma, or asthma phenotypes, from their underlying causes, or asthma endotypes. The best-supported endotypic distinction is the type 2-high/type 2-low distinction.
The airways of asthma patients are "hypersensitive" to certain triggers, also known as stimuli (see below). (It is usually classified as type I hypersensitivity.) [4] [5] In response to exposure to these triggers, the bronchi (large airways) contract into spasm (an "asthma attack").
Illustration depicting bronchoconstriction (Asthma) Bronchoconstriction is the constriction of the airways in the lungs due to the tightening of surrounding smooth muscle , with consequent coughing , wheezing , and shortness of breath .
Asthma is a common condition and affects over 300 million people around the world. [3] Asthma causes recurring episodes of wheezing, breathlessness, chest tightness, and coughing, particularly at night or in the early morning. [4] Exercise-induced asthma is common in asthmatics, especially after participation in outdoor activities in cold weather.
There is, of course, no reason why asthma and exercise-induced bronchoconstriction should not co-exist but the distinction is important because without successful treatment of underlying asthma, treatment of an exercise component will likely be unsuccessful.
Ad
related to: asthma spasms