title: Percutaneous revascularization of long femoral artery lesions for claudication: patency over 2.5 years and impact of systematic surveillance.
abstract: BACKGROUND
  Angioplasty and stenting are preferred treatments for revascularizing femoral artery lesions up to 100 mm, but surgical bypass is recommended for longer lesions. We assessed long-term patency after percutaneous revascularization of long femoral artery lesions for claudication with intensive out-patient surveillance.
  
  
  METHODS
  We followed a cohort of 111 consecutive patients receiving angioplasty or stenting in 142 limbs in two institutions. Patients were followed for 2.5 years, and event curves and multivariable survival analysis used to compare outcomes in three groups according to lesion length (< 100 mm, 100-200 mm, and greater than 200 mm). Failed patency was defined as recurrence of symptoms with a decline in ankle brachial index, or stenosis identified by duplex ultrasound, or reintervention.
  
  
  RESULTS
  Compared to lesions less than 100 mm, longer lesions had higher failed primary patency (100-200 mm: HR = 2.0, P = 0.16, >200 mm: HR = 2.6, P = 0.03). Failed secondary patency was similar for short and intermediate lesions (< 5% incidence), but trended higher for lesions >200 mm (HR = 4.2, P = 0.06). An initial procedure residual stenosis greater than 20% was the only significant multivariable factor related to poorer long-term patency (HR = 15.8, P = 0.003). Compared to short lesions, the gain in long-term patency with out-patient surveillance and reintervention was higher for longer lesions and significantly so for intermediate lesions (100-200 mm = 23% versus <100 mm = 8%, P = 0.041).
  
  
  CONCLUSIONS
  Percutaneous treatment of long femoral artery lesions can provide acceptable long-term patency for patients with claudication when out-patient surveillance is used to identify patients who require repeat interventions. Future long-term studies should consider overall patency encompassing more than one percutaneous reintervention.
authors.affiliation: Interventional Vascular Medicine and Cardiology, Cardiovascular Division, VA Boston Healthcare System, West Roxbury, Massachusetts 02132, USA.
authors.forename: Gerard
authors.initials: G
authors.lastname: Connors
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Todoran
authors.forename: Brian A
authors.initials: BA
authors.lastname: Engelson
authors.forename: Piotr S
authors.initials: PS
authors.lastname: Sobieszczyk
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Eisenhauer
authors.forename: Scott
authors.initials: S
authors.lastname: Kinlay
mesh_terms: D000368:Aged; D000553:Ambulatory Care; D000704:Analysis of Variance; D000800:Angioplasty, Balloon / Q000009:adverse effects / Q000295:instrumentation; D055109:Ankle Brachial Index; D001157:Arterial Occlusive Diseases / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D016009:Chi-Square Distribution; D003251:Constriction, Pathologic; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D007383:Intermittent Claudication / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D016015:Logistic Models; D008297:Male; D008404:Massachusetts; D008875:Middle Aged; D016017:Odds Ratio; D016016:Proportional Hazards Models; D012008:Recurrence; D019233:Retreatment; D018570:Risk Assessment; D012307:Risk Factors; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D014654:Vascular Patency; D014656:Vascular Surgical Procedures