Association of caffeine levels with myocardial perfusion during pharmacological stress cardiac magnetic resonance imaging.
Iribarren A; Obrutu O; Maughan J; Cook-Wiens G; Bairey Merz CN; Li D; Berman DS; Kwan AC · 2026 · American heart journal plus : cardiology research and practice
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Background Caffeine, a nonselective adenosine A2 receptor antagonist, blunts adenosine-induced coronary hyperemia. Despite recommended abstinence before adenosine stress cardiac magnetic resonance imaging (CMRi), residual caffeine may…
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Metadata source: Europe PMC · DOI 10.1016/j.ahjo.2025.100709