title: Anaphylactoid reaction to intravenous contrast in patient with systemic mastocytosis.
abstract: Systemic mastocytosis is a rare disorder characterised by tissue infiltration of morphologically abnormal mast cells and has been associated with severe anaphylactoid reactions during general anaesthesia. We report the case of a 43-year-old woman who developed a severe anaphylactoid reaction to iodinated contrast media. Persistently elevated serum tryptase levels led to further evaluation and the eventual diagnosis of systemic mastocytosis. This case highlights the importance of repeated measurements of serum tryptase levels following severe anaphylactoid reactions. The anaesthetist should also be aware of the propensity of these patients to develop severe anaphylactoid reactions during general anaesthesia and use treatment strategies to minimise this risk.
authors.affiliation: Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester Minnesota, United States of America.
authors.forename: T N
authors.initials: TN
authors.lastname: Weingarten
authors.forename: G W
authors.initials: GW
authors.lastname: Volcheck
authors.forename: J
authors.initials: J
authors.lastname: Sprung
mesh_terms: D000328:Adult; D000707:Anaphylaxis / Q000139:chemically induced*; D003287:Contrast Media / Q000009:adverse effects*; D005260:Female; D006801:Humans; D034721:Mastocytosis, Systemic / Q000175:diagnosis*; D053802:Tryptases / Q000097:blood
chemical_list: D003287:Contrast Media; D053802:Tryptases