Key result
Intracoronary infusion of contrast medium during coronary angiography can induce physiological changes, including early repolarization, that lower the ventricular fibrillation threshold.
Clinicians should be aware that intracoronary contrast infusion during angiography can lower the ventricular fibrillation threshold and cause malignant arrhythmias.
Alerts clinicians to arrhythmia risk with intracoronary contrast; hypothesis-generating case report leaves open need for prospective validation.
Malignant arrhythmias during coronary angiography consist a complication of the procedure. Clinicians should be aware that intracoronary infusion of contrast medium can lead to physiological changes that lower the ventricular fibrillation threshold.
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Kariki et al. (2021) studied this question. Intracoronary infusion of contrast medium during coronary angiography can induce physiological changes, including early repolarization, that lower the ventricular fibrillation threshold.
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