title: Duplex ultrasound-guided femoropopliteal angioplasty: initial and 12-month results from a case controlled study.
abstract: OBJECTIVE
  To evaluate initial technical success, procedural complications, and 12-month patency of duplex-guided angioplasty compared to conventional fluoroscopically-guided procedures.
  
  
  METHODS
  One hundred four patients (65 men; mean age 69 years) who underwent duplex-guided femoropopliteal angioplasty were compared to 104 patients undergoing fluoroscopically-guide procedures who were matched for age, sex, baseline ankle-brachial index (ABI), and length and grade of lesion. Patients were followed for 12 months, and restenosis was assessed by ABI and duplex sonography.
  
  
  RESULTS
  Technical success was achieved in 88 (84.6%) patients from the duplex-guided group and in 102 (98.1%) control patients (p=0.001). Periprocedural complications occurred in 12.5% (n=13) and 18.3% (n=19), respectively (p=0.4). Contrast-induced transient renal impairment was observed in 7 (6.7%) patients in the fluoroscopic group. One hundred (96.1%) patients in the duplex and 102 (98.1%) patients in the fluoroscopic group completed the 12-month follow-up. Restenosis was found in 35 (39.8%) patients of the duplex group and in 38 (37.2%) patients of the fluoroscopic group (p=0.8).
  
  
  CONCLUSIONS
  Technical success of duplex-guided procedures was significantly lower compared to fluoroscopic angioplasty; complications and 12-month patency were similar with both techniques. Duplex-guided angioplasty may be a feasible alternative, particularly for patients at high risk for contrast-induced complications.
authors.affiliation: Department of Angiology, Vienna General Hospital, University of Vienna Medical School, Vienna, Austria.
authors.forename: Ramazanali
authors.initials: R
authors.lastname: Ahmadi
authors.forename: Ara
authors.initials: A
authors.lastname: Ugurluoglu
authors.forename: Martin
authors.initials: M
authors.lastname: Schillinger
authors.forename: Reinhold
authors.initials: R
authors.lastname: Katzenschlager
authors.forename: Schila
authors.initials: S
authors.lastname: Sabeti
authors.forename: Erich
authors.initials: E
authors.lastname: Minar
mesh_terms: D000368:Aged; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy*; D015415:Biomarkers / Q000097:blood; D002114:Calcinosis / Q000175:diagnosis / Q000628:therapy; D016022:Case-Control Studies; D003404:Creatinine / Q000097:blood; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging* / Q000601:surgery*; D005471:Fluoroscopy; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000000981:diagnostic imaging* / Q000601:surgery*; D011183:Postoperative Complications / Q000209:etiology / Q000401:mortality; D012720:Severity of Illness Index; D016019:Survival Analysis; D013997:Time Factors; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex
chemical_list: D015415:Biomarkers; D003404:Creatinine