Bronchospasm
Lower respiratory tract disease that affects the airways leading into the lungs
Bronchospasm
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. It causes difficulty in breathing which ranges from mild to severe. Bronchospasms occur in asthma, chronic bronchitis and anaphylaxis. Bronchospasms are a possible side effect of some drugs: pilocarpine, beta blockers (used to treat hypertension), a paradoxical result of using LABA drugs (to treat COPD), and other drugs. Bronchospasms can present as a sign of giardiasis. Some factors that contribute to bronchospasm include consuming certain foods, taking certain medicines, allergic responses to insects, and fluctuating hormone levels, particularly in women. Bronchospasms are one of several conditions associated with cold housing. The overactivity of the bronchioles' muscle is a result of exposure to a stimulus which under normal circumstances would cause little...
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