Conclusions
The combination of vasodilators with exercise stress testing can be used safely and effectively, with improved image quality and with significant reduction of problematic side effects. Dobutamine may be used in patients with bronchospastic lung disease and has an acceptable side effect profile.
Selective A2A receptor agonists are potent coronary vasodilators that should not produce significant hypotension. This selectivity will also likely reduce side effects and AV block produced by stimulation of the other adenosine receptor subtypes, making these agents highly desirable for pharmacologic stress testing. Importantly, if as expected these new A2A agonists do not produce bronchoconstriction, then they can be used safely in virtually all patients. The results from experimental studies appear promising for A2A receptor agonists, and clinical trials of these agents are now under way.
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Hendel, R.C., Jamil, T. & Glover, D.K. Pharmacologic stress testing: New methods and new agents. J Nucl Cardiol 10, 197–204 (2003). https://doi.org/10.1067/mnc.2003.5
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DOI: https://doi.org/10.1067/mnc.2003.5