A 57-year-old man was admitted to our hospital for evaluation and management of stroke in the setting of an atrial septal defect. Shortly after receiving gadobenate dimeglumine for magnetic resonance imaging of the pelvic vessels, he experienced cardiac arrest from which he was resuscitated. His course was complicated by profound distributive shock. The presumed cause was a severe anaphylactic ...

A patient with a carcinoid tumour and a history suggestive of carcinoid syndrome, but with no biochemical evidence in support, had a cardiovascular collapse during an anaesthetic with propofol and suxamethonium. Subsequent investigations suggested an anaphylactoid reaction to suxamethonium, but there were features in common with a carcinoid crisis. The necessity for a second anaesthetic soon af...

Vitamin K1 is the first-line therapy to brodifacoum poisoning. Anaphylactoid reactions may occur anytime during intravenous administration of vitamin K1 injection. Vitamin K1 must be ceased when anaphylactoid reactions emerge, and therapeutic plasma exchange could be a second-line option.

reactions, e.g. anaphylaxis versus acute severe asthma. Serum tryptase cannot distinguish between an anaphylactic or anaphylactoid reaction, as tryptase levels are elevated regardless of the mechanism of mast cell activation. Tryptase was not measured in the patient because there was a clear causal relationship between TMP-SMX administration and the development of symptoms. The tryptase assay i...

BACKGROUND Family physicians frequently order and in some instances supervise diagnostic tests using intravascular radiographic contrast media. METHODS MEDLINE database was searched from 1966 to the present using the key terms "contrast media," "adverse reaction," "anaphylaxis," "anaphylactoid," "nephropathy," "renal failure," "kidney failure," and "MRI" in combinations. Other sources were fo...

Haemodialysis (HD)-associated anaphylactic and anaphylactoid reactions are found to be a complex problem, and though they have been well-documented in literature, a number of unexplored aspects remain. Anaphylaxis is a severe, life-threatening, generalized or systemic form of hypersensitivity. The clinical diagnosis is based on case history and physical examination, and includes symptoms of air...