High and immeasurable ankle-brachial index as predictor of poor amputation-free survival in critical limb ischemia

A high/immeasurable ABI in patients with CLI and infrapopliteal arterial obstructive disease is an independent risk factor of major amputation and of poor AFS, in both diabetics and nondiabetics. Incorporating high/immeasurable ABI in the PREVENT III prediction model improves its performance.