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Ventricular fibrillation in coronary angiography: what is the role of contrast medium?
S J Armstrong1, K P Murphy, P Wilde
1Department of Radiodiagnosis, Bristol Royal Infirmary, U.K.
Insights
This study found no increased risk of serious arrhythmias, including ventricular fibrillation, with non-ionic contrast media during coronary angiography. Technical factors, not contrast type, were linked to arrhythmias in patients undergoing the procedure.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Coronary angiography is a key diagnostic tool for coronary artery disease.
- Arrhythmias, such as ventricular fibrillation, are potential complications.
- The safety of different contrast media is an ongoing area of research.
Purpose of the Study:
- To determine the incidence of ventricular fibrillation and serious arrhythmias during coronary angiography.
- To identify factors contributing to these arrhythmias.
- To assess if non-ionic contrast media increases arrhythmia risk compared to ionic contrast media.
Main Methods:
- Retrospective review of 3660 patients undergoing coronary angiography.
- Analysis of arrhythmia incidence and correlation with contrast media type (ionic vs. non-ionic).
- Evaluation of technical factors associated with observed arrhythmias.
Main Results:
- Ten cases of ventricular fibrillation were identified among 3660 patients.
- Identifiable technical factors were associated with all ventricular fibrillation cases.
- No significant difference in serious arrhythmia incidence was found between ionic and non-ionic contrast media groups.
Conclusions:
- Ventricular fibrillation during coronary angiography is rare and primarily linked to technical factors.
- Non-ionic contrast media does not appear to increase the risk of serious arrhythmias compared to ionic contrast media.
- Technically satisfactory injections of either contrast type were not associated with ventricular fibrillation.
Abstract:
A retrospective review of patients with coronary angiography was undertaken to establish the incidence of ventricular fibrillation and other serious arrhythmias and to identify possible causative factors, in particular whether the use of non-ionic contrast medium increased the risk of a serious arrhythmia. Out of 3660 patients reviewed there were 10 cases of ventricular fibrillation. In all cases, there were identifiable technical factors thought to have accounted for the arrhythmia. There were no cases of ventricular fibrillation complicating a technically satisfactory injection of ionic or non-ionic contrast medium. There was no significant difference in the incidence of serious arrhythmias between patients given ionic and those given non-ionic contrast medium.
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