Prospective cohort study of consecutive diabetic patients undergoing percutaneous coronary intervention (PCI) in whom development of critical limb ischemia was prospectively assessed by a dedicated diabetic foot clinic. Cardiac mortality at 4-year follow-up was the primary endpoint of the study.

Inclusion Criteria:

• diabetes mellitus
• need for coronary revascularization
• age > 18 years

Exclusion Criteria:

• clinical contraindications to prolonged double antiplatelet therapy
• life expectancy < 1 year
• lack of consent

consecutive diabetic patients undergoing percutaneous coronary intervention