Abstract: Abstract Objective: To evaluate the clinical effects of Percutaneous transluminal angioplasty(PTA) in the treatment of infrapopliteal arterial occlusive disease.Methods: The data of 39 patients(43limbs) who underwent infrapopliteal PTA from Jun 2008 to July 2009 in our hospital were reviewed.Results: Procedures were performed on 40 of 43 limbs(92%) successfully. During a mean follow up time of (8 range,3~18) months, ankle-brachial index (ABI) was increased from 0.41±0.12 before PTA to 0.82±0.05 after PTA（P<0.01）.There was no death in hospital The limb salvage rate and complication rate was 91.4% and 13%(6/43),respectively.Conclusion: Infrapopliteal PTA can be performed with favorable clinical results in patients with chronic occlusive disease and reduce the amputation rate.PTA should be considered as an effective and safe therapy for lower extremity ischemia caused by infrapopliteal occlusive disease.

Key words: Percutaneous transluminal angioplasty, Interventional radiology, Arterial occlusive disease