A Comparison of Nonionic, Low-Osmolality Radiocontrast Agents with Ionic, High-Osmolality Agents during Cardiac Catheterization

Abstract

Nonionic, low-osmolality radiocontrast agents are used frequently because they are believed to be safer than ionic, high-osmolality agents, but they are also more expensive. We conducted a randomized trial to compare the incidence of adverse events after the administration of ionic, high-osmolality and of nonionic, low-osmolality radiocontrast agents during cardiac angiography.