Abstract
Adenosine pharmacological myocardial stress test has been widely used in clinic.However,the side effects related with adenosine administration has been an issue of controversy.Current Phase Ⅲ study of regadenoson,a selective A2a receptor agonist,reveals its potential to substitute adenosine as a new agent for pharmacological myocardial stress test.This review briefs adenosine and regadenoson and their clinical utilities in myocardial stress test. Key words: Adenosine; Regadenoson; Myocardial ischemia; Radionuclide imaging
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