[epmaybe]

I'm a little confused by this. Patients can get stents in multiple arteries during one cath lab session. Generally it's a diagnostic cath at first, finding all blockages, and deciding which vessels should be ballooned/stented. I've been in multiple procedures (shadowing, not performing) where they did 2+ vessels.

[graeham]

Agreed that multiple stents and multiple vessels can be stented in one cath session. My point was more that there isn't very strong evidence or criteria for what constitutes a vessel that should be stented versus which should not. Worse, plaques are dynamic – what looks benign today could rupture and cause a complete/near occlusion. Rupture and subsequent thrombosis is more dangerous than stenosis itself.