1) The document discusses peripheral artery disease (PAD), which is caused by obstruction of blood supply to the lower or upper extremities, most commonly from atherosclerosis.
2) Diagnosis and management of PAD is covered, including non-invasive tests like ankle-brachial index and exercise treadmill testing, and invasive angiography.
3) Treatment options discussed include risk factor modification, pharmacotherapy, endovascular and surgical procedures. Critical limb ischemia and acute limb ischemia are also addressed.