title: Hemobahn stent-grafts for treatment of femoropopliteal arterial obstructions: midterm results of a prospective trial.
abstract: OBJECTIVE
  To report a prospective study to evaluate safety, effectiveness, and midterm patency of self-expanding stent-grafts in patients with femoropopliteal occlusive disease.
  
  
  METHODS
  Sixty-three Hemobahn stent-grafts were used in 52 patients for treatment of medium- or long-segment (>3 cm) occlusions (82.7%) and stenoses (17.3%) of the femoropopliteal artery. The mean length of vessel segments covered was 10.9 cm +/- 5.13. Follow-up with documentation of clinical symptoms, assessment of Rutherford clinical stage of peripheral vascular disease, and color-coded duplex sonography was performed at discharge, at 1, 3, 6, 12, 18, and 24 months after implantation, and yearly thereafter. Mean follow-up duration was 23.8 months +/- 6.9 (range, 8-36 mo). Follow-up data at 12 and 24 months after treatment were available for 47 of 52 (90.4%) and 31 of 52 patients (59.6%), respectively.
  
  
  RESULTS
  Device implantation was technically successful in all 52 patients, yielding an overall technical success rate of 100%. Procedure-related complications were observed in 12 of 52 patients (23.1%) and consisted of distal embolization (n = 4, 7.7%), minor groin hematoma (n = 7, 13.5%), and arteriovenous fistula (n = 1, 1.9%), but prolonged hospitalization and further medical, interventional, or surgical measures were not required. Stent-graft placement induced an initial improvement of the mean resting ankle-brachial index from 0.54 +/- 0.12 to 0.89 +/- 0.14 (P <.01). Primary patency rates at 12 and 24 months were 78.4% +/- 5.8 and 74.1% +/- 6.2, respectively. Primary assisted patency rates were 82.4% +/- 5.3 at 12 months and 80.3% +/- 5.6 at 24 months. Secondary patency rates at 12 and 24 months were 88.3% +/- 4.5 and 83.2% +/- 5.5, respectively. There was no significant difference (log-rank test, P >.3) between primary patency rates in patients grouped according to lengths of implanted grafts (ie, length of the treated lesions).
  
  
  CONCLUSIONS
  Endovascular placement of Hemobahn stent-grafts for percutaneous treatment of medium- to long-segment high-grade stenoses and occlusions of the femoropopliteal artery is a safe procedure with excellent initial success rates and promising midterm results.
authors.affiliation: Klinik für Diagnostische Radiologie, Christian-Albrechts-Universität Kiel, Arnold-Heller Str. 9, 24105 Kiel, Germany. jahnke@medscape.com
authors.forename: Thomas
authors.initials: T
authors.lastname: Jahnke
authors.forename: Reimer
authors.initials: R
authors.lastname: Andresen
authors.forename: Stefan
authors.initials: S
authors.lastname: Müller-Hülsbeck
authors.forename: Fritz K W
authors.initials: FK
authors.lastname: Schäfer
authors.forename: Götz
authors.initials: G
authors.lastname: Voshage
authors.forename: Martin
authors.initials: M
authors.lastname: Heller
authors.forename: Joachim
authors.initials: J
authors.lastname: Brossmann
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods*; D005260:Female; D005263:Femoral Artery / Q000601:surgery; D006801:Humans; D007383:Intermittent Claudication / Q000209:etiology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000601:surgery; D011446:Prospective Studies; D015607:Stents; D016896:Treatment Outcome; D014654:Vascular Patency