anaphylaxis


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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 ?
Anaphylaxis is a rapid-onset, generalized allergic or hypersensitivity reaction (Campbell & Kelso, 2016a).
1 mg for the treatment of life-threatening allergic reactions, including anaphylaxis.
3mg, IV solumedrol 125mg, IV benadryl 50mg, IV famotidine 20mg as initial management of anaphylaxis.
The most deadly triggers of anaphylaxis, are wasp and bee stings.
Intraoperative anaphylaxis is a rare event but it can cause significant mortality and morbidity.
Keywords: Anti-IgE, idiopathic anaphylaxis, omalizumab, steroid
5 hours following suspected anaphylaxis, if they are otherwise fine.
Seasonal allergies, especially insect allergies, are becoming increasingly common and, as the latter end of the summer approaches, we do receive an increase in incidents of anaphylaxis as a result of wasp stings.
sup][2] Anaphylaxis during anesthesia is a rare phenomenon but might have life-threatening consequences.
Additionally, the report provides an overview of key players involved in therapeutic development for Anaphylaxis and features dormant and discontinued projects.
Like all reactions, anaphylaxis can occur out of the blue - and it's a medical emergency, causing severe breathing difficulties, a drop in blood pressure and swelling of the face and airways.
Allergies can develop at any age," said Moira Austin, of the Anaphylaxis Campaign (www.