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Anaphylactoid reaction, non-immune anaphylaxis, or pseudoanaphylaxis, is a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation. [ 10 ] [ 42 ] Non-immune anaphylaxis is the current term, as of 2018, used by the World Allergy Organization [ 42 ] with some recommending that the old ...
Heart attack, generalised anxiety disorders, panic disorder, depression, blood transfusion, bipolar disorder, anaphylaxis A sense of impending doom is a medical symptom that consists of an intense feeling that something life-threatening or tragic is about to occur, despite no apparent danger.
Dust mite allergy, also known as house dust allergy, is a sensitization and allergic reaction to the droppings of house dust mites. The allergy is common [ 38 ] [ 39 ] and can trigger allergic reactions such as asthma, eczema , or itching .
There remains no evidence that exposure to airborne peanut protein worsens allergy or results in anaphylaxis for the majority of peanut allergic individuals. There always remains the possibility that someone who is exceptionally sensitive will experience a severe reaction, however, protecting them from all possible exposures to peanut protein ...
Exercise-induced anaphylaxis is not a widely known or understood condition, with the first research on the disorder only having been conducted in the past 40 years. A case report in 1979 on EIA was the first research of its kind, where a patient was described to experience anaphylactic shock related to exercise 5–24 hours following the ...
If the child encounters the allergen and shows signs of anaphylaxis, use the epinephrine auto-injector first, if available, and seek medical help immediately. Antihistamine medication can also help slow the reaction in addition to epinephrine if it has been approved for combination by your doctor. [ 4 ]
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.
Anaphylatoxins are able to trigger degranulation (release of substances) of endothelial cells, mast cells or phagocytes, which produce a local inflammatory response.If the degranulation is widespread, it can cause a shock-like syndrome similar to that of an allergic reaction.