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 ?
According to the Mayo Clinic, 2016, more than 200,000 cases of anaphylaxis occur annually in the U.S., indicating the higher number of potential patient pool in the region.
[ClickPress, Wed Jun 19 2019] The increasing incidence of anaphylaxis globally is the main driving factor for the growth of the anaphylaxis treatment market.
As the researchers describe in their article published in Allergy, six of 70 study participants evaluated for unexplained frequent anaphylaxis tested positive for an allergy to galactose, or alpha-gal, a sugar molecule found in beef, pork, lamb, and other red meats.
Anaphylaxis is a severe, life-threatening allergic reaction with a sudden onset that can occur very quickly, as fast as within a couple of minutes, and could be fatal if not treated immediately.
SYMJEPI 0.3mg Injection is intended for immediate administration in patients who weigh 30kg or more and who are at an increased risk for anaphylaxis as well as a history of anaphylactic reactions, concluded the company.
Anaphylaxis under anesthesia is uncommon, occurring in only 0.01% to 0.02% of patients, and neuromuscular-blocking drugs are the most common drug type related to anaphylaxis.
In this case, anaphylaxis to CHL acetate was confirmed.
We present this case, due to the ampicillin, which is a commonly used antibiotic in newborn intensive care units, and because of the rare occurrence of anaphylaxis in the newborn period.
Overall, Australia has the highest rate of anaphylaxis fatalities among developed countries (Mullins et al., 2016), and food-related anaphylaxis hospital admissions among children aged birth to four years has increased 1.5 times in the last decade (Mullins et al., 2015).
Always call 999 if you suspect someone is suffering from anaphylaxis - but while waiting for medics, an EpiPen could save a life.