JOURNAL ARTICLE
REVIEW
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New techniques for endovascular treatment of peripheral artery disease with focus on chronic critical limb ischemia.

Chronic critical limb ischemia (CLI) represents the most advanced stage of peripheral arterial disease. CLI is associated with a high risk for limb loss and revascularization, either by surgical or endovascular means, is absolutely mandatory. With traditional techniques such as balloon angioplasty, limb salvage was reported in 80 to 90%. However, in case of failed revascularization attempt, limb loss was 40 to 50% and mortality approximately 20%. This review summarizes new developments in endovascular techniques which increase the acute and chronic success rate of endovascular procedures and therefore potentially further improve limb salvage rates. Special crossing and re-entry devices designed for femoro-popliteal application may even facilitate recanalization of long chronic occlusions. Improved stent design, atherectomy devices and drug coated balloons improve patency rates and may result in improved wound healing rates. Moreover, downsizing the catheter tools for infrapopliteal artery disease opens new horizons also for the treatment of complex below-the-knee lesions representing an increasing patient population due to the increasing prevalence of diabetes and end-stage renal failure.

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