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造影剂(Radiographic contrast media,RCM)引起的过敏反应(ARs)发生率为1～2%。这些反应呈速发型,与IgE(immunoglobu1inE)引起的过敏反应类似。其临床表现可包括荨麻疹、血管神经性水肿、支气管痉挛和低血压,这些反应不可能是抗体引起的。对RCM有先兆过敏反应的病人在经放射线照射后,其反应的危险率增达17～35%。应用抗组织胺、皮质类固醇及其复合物预先处理对减少这种危险有一定作用。本文作者就318
Radiographic contrast media (RCM) caused by the incidence of allergic reactions (ARs) 1 ~ 2%. These reactions are fast-acting, similar to the allergic reactions caused by immunoglobulin (IgE). Its clinical manifestations may include urticaria, angioneurotic edema, bronchospasm and hypotension, these reactions can not be caused by antibodies. Patients who have anaerobic allergic reaction to RCM have a 17 to 35% increased risk of responding to radiation. Pretreatment with antihistamines, corticosteroids, and their compounds may have a role in reducing this risk. The author of this article is 318