Detrimental effects of nitroglycerin use during regadenoson vasodilator stress testing: A cautionary tale.

TitleDetrimental effects of nitroglycerin use during regadenoson vasodilator stress testing: A cautionary tale.
Publication TypeJournal Article
Year of Publication2018
JournalJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
Date Published2018
ISSN1071-3581
Abstract

Vasodilator agents such as adenosine and regadenoson are commonly used pharmacologic stressors to assess for ischemia in patients undergoing myocardial perfusion studies. The recommended reversal agent for this mode of stress is aminophylline, although nitroglycerin is commonly administered as an attempt to reverse the symptoms or electrocardiographic (EKG) changes during the stress test. We demonstrate through two cases that incorrect administration of nitroglycerin can induce hypotension and worsen coronary steal, whereas appropriate administration of aminophylline can reverse the effects of pharmacologic vasodilators. While nitroglycerin is often used in patients with organic angina, it has the potential to worsen ischemia in the setting of pharmacologic vasodilator administration. These cases underscore the importance of administering the correct reversal agent for pharmacologic stress tests.

URLhttps://dx.doi.org/10.1007/s12350-017-1174-7
DOI10.1007/s12350-017-1174-7
Short TitleJ Nucl Cardiol
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