Work

Raising Awareness of ST-Segment Elevation Myocardial Infarction Triggered by Intravenous Regadenoson for Cardiac Stress Testing

Year: 2025

Type: article

Abstract: Regadenoson is a selective A2A adenosine receptor agonist vasodilator that is widely used for pharmacologic cardiac stress testing. Although generally considered safe with less side effects than adenosine, regadenoson can have serious side effects. We report here 4 patients who developed ST-segment elevation myocardial infarction (STEMI) or STEMI equivalent due to acute thrombotic occlusion of variable coronary arteries including left main coronary artery, normal and anomalous right coronary artery, and left circumflex coronary artery, with characteristic electrocardiogram abnormalities. The STEMI occurred as early as 1 minute and as late as 30 minutes after regadenoson administration. Therefore, development of localizing acute ST-segment elevation (STE) or STE in aVR with reciprocal ST-segment depression on the electrocardiograms as seen in these cases portends underlying acute coronary obstruction. Attention should also be paid to potential late occurring STEMI. When used in cardiac stress testing, discussing potential serious side effects of regadenoson including STEMI should be part of informed consent.

Source: JACC Case Reports

DOI: 10.1016/j.jaccas.2025.103892

Author: Ruihai Zhou

Institution: University of North Carolina at Chapel Hill

Language: English

Topic: Acute Myocardial Infarction Research

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $850