title: Diameter of occluded superficial femoral arteries limits percutaneous recanalization: preliminary results.
abstract: OBJECTIVE
  To explore if the diameter of an occluded superficial femoral artery (SFA) can predict the technical success of percutaneous recanalization.
  
  
  METHODS
  Two hundred patients (151 men; mean age 57 +/- 16 years) suffering from peripheral arterial occlusive disease were evaluated with duplex ultrasonography to measure arterial diameters and percent diameter reduction. Seventy-nine (39.5%) patients had segmental or complete SFA occlusions that ranged in age from 2 to 26 months (median 11). The majority of occlusions (45, 57.0%) were < or =10 cm long (range 10-35). Percutaneous recanalization was performed in 71 patients using either conventional angioplasty or local low-dose thrombolysis with rtPA.
  
  
  RESULTS
  Diameters of 79 unilaterally occluded SFAs at the level of occlusion were 4.5 +/- 1.4 mm versus 5.7 +/- 1.3 mm for the patent contralateral artery (p=0.055). None of the 121 patent SFAs had diameters < or =3.5 mm, but 12 (15%) of the 79 occluded SFAs did, and none of these could be recanalized. The sensitivity of the 3.5-mm cut point to predict recanalization failure was 44% (specificity 100%). CONCLUSIONS; Our data suggest that occluded SFAs with a diameter reduction to < or =3.5 mm are not suitable for percutaneous recanalization, as the original arterial lumen cannot be reconstructed.
authors.affiliation: Klinik und Poliklinik für Angiologie, Universitätsklinik Essen, Hufelandstrasse 55, 45122 Essen, Germany. knut.kroeger@med.uni-essen.de
authors.forename: Knut
authors.initials: K
authors.lastname: Kröger
authors.forename: Carsten
authors.initials: C
authors.lastname: Buss
authors.forename: Matthias
authors.initials: M
authors.lastname: Goyen
authors.forename: Frans
authors.initials: F
authors.lastname: Santosa
authors.forename: Gottfried
authors.initials: G
authors.lastname: Rudofsky
mesh_terms: D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000628:therapy*; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D017211:Treatment Failure; D018616:Ultrasonography, Doppler, Duplex