Treatment of Cutaneous Lupus Erythematosus (CLE) With the 595 nm Flashlamp Pulsed Dye Laser

This laser has an adjustable pulse duration (0.45-40 ms), fixed wavelength 595 nm, spot size (3 mm, 5 mm, 7 mm, and 10 mm), and incident fluence range of 10-40 J/cm2. The laser is also equipped with a dynamic cooling device (DCD) (FDA cleared under K001589) that delivers cryogen (R-134a) from a small nozzle positioned 4 cm above the skin at an angle of approximately 70 degrees with respect to the skin surface. All patients will be treated with the laser device on which the varying cooling device parameters will be selected based on the clinical judgment of the treating physician. Factors used in this decision include patient age, skin type and epidermal pigmentation, size and depth of vessels, color of lesions, anatomic location, etc. In all instances, a test-dose in an inconspicuous location on the skin will be conducted prior to the first treatment.