Iodixanol and iohexol in cardioangiography. A comparative vectorcardiographic study

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Contrast media (CM) are essential for cardiovascular imaging.
• Non-ionic dimeric CM like iodixanol are designed to be isotonic with blood.
• Assessing the electrophysiological impact of CM is crucial for patient safety.

Purpose of the Study:

• To evaluate computerised dynamic vectorcardiography (VCG) as a research tool for contrast media.
• To compare the electrophysiological effects of iodixanol versus iohexol in patients undergoing cardioangiography.

Main Methods:

• A double-blind, randomized trial involving 119 patients undergoing cardioangiography.
• Comparison of iodixanol (320 mg I/ml) and iohexol (350 mg I/ml).
• Analysis of VCG parameters, general tolerability, safety, and radiographic efficacy.

Main Results:

• Iodixanol induced significantly fewer changes in VCG parameters compared to iohexol.
• Patients reported a milder sensation of warmth after iodixanol administration.
• Both contrast media demonstrated good tolerability and safety profiles.

Conclusions:

• Computerised dynamic VCG is a valuable tool for analyzing the electrophysiological effects of contrast media.
• Iodixanol presents a favorable electrophysiological profile compared to iohexol.
• Further research utilizing VCG can aid in the development of safer contrast agents.