Anaphylaxis

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Anaphylaxis
ICD-10 T78.2
DiseasesDB 29153
MeSH D000707

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Anaphylactic reaction

Overview

Anaphylaxis is an acute systemic (multi-system) and severe Type I Hypersensitivity allergic reaction in humans and other mammals. The term comes from the Greek words ana (against) and phylaxis (protection).[1] Anaphylaxis occurs when a person or animal is exposed to a trigger substance, called an allergen, to which they have already become sensitized. Minute amounts of allergens may cause a life-threatening anaphylactic reaction. Anaphylaxis may occur after ingestion, skin contact, injection of an allergen or, in rare cases, inhalation.[2]

Treatment

Planning for treatment

The Asthma and Allergy Foundation of America advises patients prone to anaphylaxis to have an "allergy action plan" on file at school, home, or in their office to aid others in case of an anaphylactic emergency, and provides a free "plan" form anyone can print. Action plans are considered essential to quality emergency care. Many authorities advocate immunotherapy to prevent future episodes of anaphylaxis."allergy fact sheet" Immunotherapy with Hymenoptera venoms is especially effective and widely used throughout the world and is accepted as an effective treatment for most patients with allergy to bees, wasps, hornets, yellow jackets, white faced hornets, and fire ants. "WHO guidelines"

Beta-blockers may aggravate anaphylactic reactions and interfere with treatment.

Prevention

References

  1. "Anaphylaxis." Etymology. Oxford English Dictionary. http://dictionary.oed.com.
  2. "Anaphylaxis." Health. 17 January 2002 . AllRefer.com . 29 Jan 2007 <http://health.allrefer.com/health/anaphylaxis-info.html>.

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