title: Prospective study on combination diode laser and radiofrequency energies (ELOS) for the treatment of leg veins.
abstract: OBJECTIVE
  To evaluate the Polaris LV, electro-optical synergy (ELOS) technology, which combines diode laser (915 nm) and radiofrequency (RF) (1 MHz) energies, for the treatment of leg veins.
  
  
  METHODS
  A total of 25 patients (Fitzpatrick I-IV) with a total of 35 sites (0.3-5.0 mm vessel diameters) were treated with up to three sessions at 4- to 10-week intervals. Polaris LV settings included: 80-140 J/cm(2) of laser light, 80-100 J/cm(3) of conducted RF, and pulses of 100-300 ms. Vessel clearance was graded by both the treating and an independent physician.
  
  
  RESULTS
  At 1 and 6 months after the final treatment, approximately 77% of treatment sites exhibited 75-100% vessel clearance, and 90% had 50-100% vessel clearance. No treatment sites had less than 25% vessel clearance. Transient dyschromic side effects were common.
  
  
  CONCLUSIONS
  The Polaris LV ELOS system is effective and safe in treating leg veins, including telangiectases, venulectases, and reticular veins.
authors.affiliation: Dermatologic Laser Center of Connecticut, 153 East Avenue, Suite 1, Norwalk, CT 06851-5709, USA.
authors.forename: Cyrus
authors.initials: C
authors.lastname: Chess
mesh_terms: D000328:Adult; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D007866:Leg / Q000098:blood supply* / Q000601:surgery; D013684:Telangiectasis / Q000601:surgery*; D016896:Treatment Outcome; D014680:Veins / Q000601:surgery