title: Electrocardiographic changes with intravenous pyelography in healthy individuals.
abstract: Fifty apparently healthy individuals undergoing intravenous pyelography had electrocardiographic evaluation before, during, and after the examination. No patient had a major electrocardiographic change after contrast injection. Of the 7 patients with abnormal baseline electrocardiograms, all had a striking (greater than 40 beats per minute) rise in rate. The 43 patients with normal electrocardiograms had a small but significant rise in rate. No ischemic changes or major arrhythmias occurred. Although electrocardiographic aberrations were better correlated with baseline electrocardiograms than history or physical evaluation, our experience and a review of the literature confirms the safety of this examination in healthy people.
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology; D003287:Contrast Media / Q000008:administration & dosage / Q000009:adverse effects*; D003973:Diatrizoate / Q000009:adverse effects; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D007275:Injections, Intravenous / Q000009:adverse effects*; D007451:Iodamide / Q000009:adverse effects; D008875:Middle Aged; D009206:Myocardium / Q000201:enzymology; D014567:Urography / Q000009:adverse effects*
chemical_list: D003287:Contrast Media; D003973:Diatrizoate; D007451:Iodamide