Related articles: Anaphylaxis
Definition
Anaphylaxis is an acute and violent reaction of the organism towards a particular antigen or allergen (a normally harmless substance that triggers allergic manifestations in some individuals; for example, peanuts, the venom injected by the bee at the time of the bite and some drugs, in particular the penicillin). In order for this reaction, mediated by a sudden and general activation of the immune system, to manifest itself, it is necessary that the organism has already been previously exposed to the antigen.Most common symptoms and signs *
- anguish
- asphyxiation
- palpitations
- Cyanosis
- Diarrhea
- Temporal and spatial disorientation
- Dyspnoea
- Abdominal pain
- Edema
- Erythema
- Hypotension
- Leukopenia
- Inflated tongue
- Headache
- Nausea
- Urticaria
- thrombocytopenia
- Polyuria
- presyncope
- itch
- Wheezing breath
- Sense of suffocation
- Squeal
- Fainting
- Dizziness
- He retched
Further indications
The typical symptoms of anaphylactic reaction are related to the massive and generalized release of histamine, a substance that causes swelling (edema), constriction of the bronchioles (bronchospasm), heart failure, cardiocircular insufficiency, collapse and - in the most serious cases - even death. The therapy is based on the rapid administration of adrenaline (epinephrine), which is why anaphylactic shock requires prompt intervention of medical help.
