title: The utilization of a new yellow light laser (578 nm) for the treatment of class I red telangiectasia of the lower extremities.
abstract: BACKGROUND
  A dual-wavelength approach is necessary in order to achieve consistent results when utilizing lasers and intense pulsed light sources to treat red and blue lower extremity vessels. In this regard, short-wavelength technologies (500-800 nm) may be employed to treat red telangiectasia of less than 2 mm on the lower extremities.
  
  
  OBJECTIVE
  To demonstrate a new yellow light laser utilizing a copper bromide medium and its potential efficacy in the treatment of red lower extremity telangiectasia of less than 2 mm.
  
  
  METHODS
  Forty-six women (mean age 37 years) were treated in two private practice settings with a 578 nm yellow light laser with a circulating cooling window (1-4 degrees C). Class I red telangiectases of the thighs 1.5 mm or less in diameter were considered for treatment. Patients were treated with up to three treatments at 6-week intervals on a 5 cm2 surgical area of vessels utilizing a fluence of 50-55 J/cm2. Results were analyzed by macrophotographic imaging, double-blinded observer evaluation/optical chromatography, and a patient evaluation scale.
  
  
  RESULTS
  An average of 1.7 patient treatment sessions produced significant clearing of 75-100% in 71.8% of patients. The mean erythema index showed significant lightening (51-65a+) in the study population. Finally, 76.1% of patients reported great satisfaction with the results of their treatment session.
  
  
  CONCLUSIONS
  A new 578 nm copper bromide (CuBr) yellow light laser produces excellent results in eradicating red telangiectases of the lower extremities that are less than 2 mm in diameter.
authors: Department of Dermatology, Cornell-Weill Medical College, New York, New York, USA.
authors: Neil S
authors: NS
authors: Sadick
authors: Robert
authors: R
authors: Weiss
mesh_terms: D000328:Adult; D000368:Aged; D001966:Bromine; D003300:Copper; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D028022:Low-Level Light Therapy; D008875:Middle Aged; D017060:Patient Satisfaction; D012880:Skin Pigmentation / Q000528:radiation effects; D013684:Telangiectasis / Q000532:radiotherapy*; D016896:Treatment Outcome
chemical_list: D003300:Copper; D001966:Bromine