Toe pressure measurements and Ankle Brachial Index (ABI) are objective vascular tests used to confirm Peripheral Arterial Disease (PAD) and Critical Limb Ischemia (CLI) as well as to assess severity of disease, or evaluate treatments. Many guidelines recommend objective vascular testing in all patients suspected of having Peripheral Arterial Disease (PAD). Visual inspection of the feet and palpable pulses have low specificity as diagnostic methods and, in addition, two thirds of all patients with PAD are asymptomatic or have atypical leg symptoms. Ankle pressure and the Ankle Brachial Index (ABI) are the most common vascular tests used to diagnose PAD. Their diagnostic accuracy is unfortunately limited in patients with incompressible arteries (diabetes, end-stage renal disease, Critical Limb Ischemia), resulting in falsely elevated ABI values. Toe pressures have proven to be a better option in these patients
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