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  • Asystole following Regadeno...
    Asif, Talal; Lee Chuy, Katherine; Malhotra, Saurabh

    Journal of nuclear cardiology, 10/2021, Volume: 28, Issue: 5
    Journal Article

    Regadenoson, a selective A2A receptor agonist, is widely used for vasodilator stress myocardial perfusion imaging and has a superior adverse effect profile when compared with other agents. However, with widespread use, there have been several reported cases of Regadenoson induced bradyarrhythmias and even asystole in patients with no known conduction system disease. In this article, we report a case of asystole following Regadenoson administration, evaluate mechanisms and risk factors for Regadenoson induced bradyarrhythmias to better identify patients at risk. We also review the available treatment options and propose recommendations for limiting its risk.