anaphylactoid


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Related to anaphylactoid: anaphylactoid purpura

anaphylactoid

 [an″ah-fi-lak´toid]
resembling anaphylaxis.
anaphylactoid reaction a reaction resembling generalized anaphylaxis but not caused by IgE-mediated allergic reaction but rather by a nonimmunologic mechanism.

an·a·phy·lac·toid

(an'ă-fi-lak'toyd),
Resembling anaphylaxis but not IgE-mediated.
Synonym(s): pseudoanaphylactic
[anaphylaxis + G. eidos, resemblance]

anaphylactoid

/ana·phy·lac·toid/ (-fĭ-lak´toid) resembling anaphylaxis.

anaphylactoid

adjective Referring to a response that simulates one or more features of an anaphylactic reaction.

an·a·phy·lac·toid

(an'ă-fi-lak'toyd)
Resembling anaphylaxis.
[anaphylaxis + G. eidos, resemblance]

an·a·phy·lac·toid

(an'ă-fi-lak'toyd)
Resem-bling anaphylaxis.
[anaphylaxis + G. eidos, resemblance]

anaphylactoid (an´əfilak´toid),

adj resembling anaphylaxis; pertaining to a reaction, the symptoms of which resemble those of the anaphylactic response produced by the injection of serum and other nonspecific proteins.
anaphylactoid reaction,

anaphylactoid

resembling anaphylaxis, but not involving an immunological mechanism.

anaphylactoid purpura
see anaphylactoid purpura.
References in periodicals archive ?
The rise in mast cell tryptase to 67 ng/ml at four hours suggests that the peak level (usually at about one to two hours) may have been well over 100 ng/ml, three to four times the subsequent baseline level of 30 ng/ml and would support a diagnosis of an anaphylactic rather than an anaphylactoid reaction.
Indolent systemic mastocytosis with elevated serum tryptase, absence of skin lesions, and recurrent severe anaphylactoid episodes.
Anaphylactoid reactions are due to the vasodilator effects of the drugs, are non-IgE mediated and are negative on skin testing at appropriate non-irritant dilutions.
It was concluded that many heroin fatalities might be due to anaphylactoid reactions mediated by the direct action of heroin, liberating mediators such as histamine and tryptase from mast cells.
Successful reversal of opioid-induced anaphylactoid reaction with IV naloxone has been reported once in the literature.
41) Before Zomax was taken FDA also failed to analyze data it had that strongly intimated that Zomax was associated with a higher incidence of anaphylactoid reactions than other drugs in its class.
In post marketing use, rare but serious cardiopulmonary or anaphylactoid reactions have been reported during or shortly following perflutren-containing microsphere administration [See ADVERSE REACTIONS (6)].
Which IV iron product has the highest incidence of anaphylactoid reactions?
Intradermal testing after anaphylactoid reaction to anaesthetic drugs; practical aspects of performance and interpretation.
The cause is still being debated, but the prevailing theory is that the condition results from an anaphylactoid reaction rather than a direct vascular effect of the amniotic fluid, Dr.
Anaphylactoid (or pseudoallergic) reactions mimic allergic reactions but do not have an immunologic mechanism (Table 1).
Use of chlorhexidine-silver sulfadiazine-impregnated catheters has been associated with serious anaphylactoid reactions in Japan (16), and these catheters are not commercially available in that country.