Table 2. Key clinical and anatomic indications for revascularization: PCI versus CABG

Clinical/anatomic situation	Suggested first-line
Symptomatic/objective ischemia in focal, accessible lesion(s)	PCI
Left-main (esp. proximal) or bilateral ostial high-risk stenosis	CABG preferred (PCI bridge if single, discrete lesion)
Stenosis at giant CAA neck / suboptimal stent landing zones	CABG ± selective PCI adjunct (heart-team)
Progressive stenosis or recurrent thrombosis despite optimal therapy	Individualized (PCI or CABG)
Acute PCI complications (perforation)	Emergency PCI; covered stent bail-out

PCI: percutaneous coronary intervention; CABG: coronary artery bypass grafting; CAA: coronary artery aneurysm.