title: The physiologic effects of nonionic contrast media on the heart.
abstract: OBJECTIVE
  This article briefly reviews the potential physiologic effects of ionic versus nonionic contrast media on the myocardium.
  
  
  METHODS
  Selection criteria for articles included the use of quantitative measurement techniques, controlled contrast-media doses, and a focus on cardiac mechanical or electrical function. Two important reviews also were used. Most of the data considered represent the results of animal experiments.
  
  
  CONCLUSIONS
  Nonionic monomer contrast media are associated with markedly less physiologic effect on the heart, compared with ionic agents. For instance, cardiac depression is minimal, and the incidence of arrhythmia and fibrillation is reduced with nonionic agents during coronary arteriography. Nonionic dimer agents with electrolyte supplementation produce even less mechanical and electrical disturbances.
authors.affiliation: Department of Radiology, University of Rochester, New York.
authors.forename: T W
authors.initials: TW
authors.lastname: Morris
mesh_terms: D003287:Contrast Media / Q000009:adverse effects*; D017023:Coronary Angiography; D006321:Heart / Q000187:drug effects*; D006801:Humans
chemical_list: D003287:Contrast Media