It is rare for patients to have any long term sequlae. A good review by Wang et all is very clear on this point. "Patients usually do well after developing acute allergic like reactions to nonionic iodinated contrast media. Fortunately, in our series, this was true even in the rare cases in which the instituted treatment was considered to be inappropriate. Reacting patients rarely develop long term sequela." Frequency, Outcome and Appropriateness of Treatment of Nonionic iodinated Contrast Media Reactions Wang CL et al. AJR 2008; 191:409-415 |