anaphylaxis

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Related to Anaphylactic reaction: anaphylactoid reaction

an·a·phy·lax·is

 (ăn′ə-fə-lăk′sĭs)
n.
A sudden, usually systemic allergic reaction, characterized by vasodilation resulting in decreased blood pressure, smooth muscle contraction resulting in shortness of breath, and hives, caused by hypersensitivity induced by a secondary exposure to a foreign substance, such as a drug or protein, after an initial sensitizing exposure.


an′a·phy·lac′tic (-lăk′tĭk), an′a·phy·lac′toid (-toid) adj.
an′a·phy·lac′ti·cal·ly adv.

anaphylaxis

(ˌænəfɪˈlæksɪs) or

anaphylaxy

n
(Medicine) extreme sensitivity to an injected antigen, esp a protein, following a previous injection
[C20: from ana- + (pro)phylaxis]
ˌanaphyˈlactic, ˌanaphyˈlactoid adj
ˌanaphyˈlactically adv

an•a•phy•lax•is

(ˌæn ə fəˈlæk sɪs)

n.
a hypersensitive reaction to an allergen, as a severe bout of hay fever, the rapid appearance of wheals, or profound physiological changes and shock.
[1905–10; ana- + (pro) phylaxis]

anaphylaxis

extreme sensitivity to an antigen, causing secretion of histamine and attendant adverse reactions, sometimes fatal. — anaphylactic, adj.
See also: Disease and Illness
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anaphylaxis - hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance
drug - a substance that is used as a medicine or narcotic
anaphylactic shock - a severe and rapid and sometimes fatal hypersensitivity reaction to a substance (especially a vaccine or penicillin or shellfish or insect venom) to which the organism has become sensitized by previous exposure
hypersensitivity reaction - an inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock
Translations

an·a·phy·lax·is

n. anafilaxis, hipersensibilidad, reacción alérgica extrema.

anaphylaxis

n anafilaxia, anafilaxis f
References in periodicals archive ?
Indications for the prescription of self-injectable adrenaline devices in the [14] community Absolute indications Previous anaphylactic reaction to a food, insect sting, latex or unavoidable aeroallergen Co-existent unstable or moderate-to-severe persistent asthma and food allergy Idiopathic anaphylaxis Food-dependent exercise-induced anaphylaxis Relative indications Mild-to-moderate peanut/and or tree nut allergy in patients [greater than or equal to] 5 years of age Food allergy in a teenager or young adult Far from a medical facility Reactions to small amounts of food, such as air-borne food allergens or contact via skin only
CASE HISTORY: We present a case of ruptured hydatid cyst of left lung with-out anaphylactic reaction in a 50-year-old lady, she presented in March 2010 with complaints of chest pain and palpitation of six days duration.
There is a constant threat of anaphylactic reaction during surgery for hydatid cyst, as hydatid fluid is antigenic which may spill during surgery resulting in serious IgE mediated reaction.
A large amount of secretions filled in the endotracheal tube and this led to the diagnosis of a developing anaphylactic reaction. Adrenalin 0.1mg dissolved in 10 cc SF and 0.5mg IV atropine was injected.
Severe anaphylactic reaction which required cardiopulmonary rescucitation and mechanical ventilation developed in 9 patients (8%).
Patients with an anaphylactic reaction should always be admitted.
The three percent of adults who are allergic to these stings can get an anaphylactic reaction and feel their throat tighten or experience nausea, diarrhea, or even cardiac arrest, says Sandra Hong, MD, an allergist at the Cleveland Clinic.
To Parker's alarm, her throat was swelling shut in a life-threatening anaphylactic reaction to the injections.
* Be aware of the potential for an anaphylactic reaction to chlorhexidine.
Concern was caused following a medical device alert issued by the Medicines and Healthcare products Regulatory Agency (MHRA) on October 25, which advised medical and nursing staff using products containing chlorhexidine to be aware of the potential anaphylactic reaction associated with the ingredient.
It was undisputed that a patient with a shellfish allergy is more likely to have an adverse anaphylactic reaction to the iodine-based contrast dye used in cardiac catheterization procedures.
Some will have an anaphylactic reaction. It's very difficult to diagnose - and there's little you can really do about it," Dr Morris added.