Summary: Critical Limb Ischaemia (CLI) is a condition characterized by chronic ischemic at-rest pain, ulcers, or gangrene for more than 2 weeks in one or both legs, attributable to objectively proven arterial occlusive disease.CLI is associated with a high risk of lower amputation, diminished quality of life and mortality. Revascularization by either bypass surgery or endovascular recanalization is conside...