Maximum vasodilating stimuli
| ATP, adenosine triphosphate; FFR, fractional flow reserve; ic, intracoronary; iv, intravenous; LCA, left coronary artery; RCA, right coronary artery. |
| • Papaverine ic (10 mg RCA, 15–20 mg LCA) |
| • Adenosine or ATP ic (30 µg RCA, 40–80 µg LCA) |
| • Adenosine or ATP iv (140 µg/kg/min in large vein) |
| Note |
| • Maximum hyperaemia is paramount to determine FFR |
| • Sometimes, incremental doses of ic adenosine or ATP might be necessary |
| • Intravenous adenosine or ATP preferably by femoral vein (most reliable and quickly) or large antecubital vein |