title: Treatment of complex atherosclerotic femoropopliteal artery disease with a self-expanding interwoven nitinol stent: midterm results from the Leipzig SUPERA 500 registry.
abstract: OBJECTIVE
  To examine the efficacy and durability of an interwoven self-expanding nitinol stent in the treatment of complex femoropopliteal artery lesions in unselected patients.
  
  
  RESULTS
  Five hundred and twenty-seven limbs in 470 patients with femoropopliteal arterial disease were treated with SUPERA stents. Follow-up data were prospectively collected in a single-centre registry and were available for 439 patients (492 limbs). The patients were followed by Doppler ultrasound, stent roentgenograms, estimation of Rutherford-Becker class (RBC) and ankle-brachial index (ABI). Total occlusions were present in 277 limbs (52.6%) and 52.4% had either moderate or severe calcification. The mean lesion length was 126.4 mm. The primary patency (PP) rates were 83.3% after 12 months and 72.8% at two years. The secondary patency rates were 98.1% after 12 months and 92.0% at two years. Patency rates did not differ between superficial femoral artery (SFA) and popliteal lesions. Between baseline and a mean of 21 months of follow-up, mean ABI increased from 0.53 to 0.91, and mean RBC decreased from 3.0 to 1.9 (p<0.001 for both comparisons). Radiographs performed on 229 patients at a mean of 16.6 months confirmed the absence of stent fractures in all patients.
  
  
  CONCLUSIONS
  Over a two-year surveillance period, the patency rate and fracture resistance of SUPERA stents implanted for complex femoropopliteal artery disease were high.
authors.affiliation: Center for Vascular Medicine, Angiology and Vascular Surgery, Park Hospital, Leipzig, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Werner
authors.forename: Anett
authors.initials: A
authors.lastname: Paetzold
authors.forename: Ursula
authors.initials: U
authors.lastname: Banning-Eichenseer
authors.forename: Susanne
authors.initials: S
authors.lastname: Scheinert
authors.forename: Michael
authors.initials: M
authors.lastname: Piorkowski
authors.forename: Matthias
authors.initials: M
authors.lastname: Ulrich
authors.forename: Yvonne
authors.initials: Y
authors.lastname: Bausback
authors.forename: Sven
authors.initials: S
authors.lastname: Bräunlich
authors.forename: Andrej
authors.initials: A
authors.lastname: Schmidt
authors.forename: Dierk
authors.initials: D
authors.lastname: Scheinert
mesh_terms: D000368:Aged; D055109:Ankle Brachial Index; D050197:Atherosclerosis / Q000628:therapy*; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D058729:Peripheral Arterial Disease / Q000628:therapy*; D011150:Popliteal Artery / Q000000981:diagnostic imaging; D011859:Radiography; D012042:Registries; D015607:Stents