Coronary Steal Adnosine Dipyridamole

CORONARY STEAL

Imagine a coronary artery splitting into two branches, one of them has a athersclerotic plaque.

Coronary blood supply –> Two branches –> One ischemic, other: non ischemic area –> Adenosine/Dipyridamole application (vasodilation) –> blood supply sort of pulled into the artery with less pressure (no obstruction) –> Increase supply to non-ischemic area, Decreased supply to ischemic area

Also: more about adenosine