ED2000: 585 nm collagen remodelling pulsed dye laser.

The wavelength of 585nm corresponds to an absorption peak of haemoglobin. The heating effect in these skin layers triggers the release of various growth factors that stimulate collagen remodelling and tightening. We report our experience with a 585nm collagen remodelling, double flashlamp excited pumped dye laser was used (ED2000, Deka MELA, Calenzano, Italy), spot size 5 mm, energy density (fluence J/cm(2)) from 2 to 4 J/cm(2), emission modality (repetition rate) at 0.5 Hz, with a short pulse duration of 250 microsec. The efficiency of 585 nm collagen remodelling pulsed dye laser is controversial in only one session. It is probably reasonable to inform patients that 3-4 treatment sessions are necessary, and that 10% of the patients have no response to nonablative photorejuvenation. Because of its low fluence and its shorter pulse duration, the 585 nm collagen remodelling pulsed dye laser has limited efficacy for the treatment of port wine stains. However, it may offer patients with erythematous, raised or hypertrophic acne scars or striae distensae a permanent cosmetic solution. This laser is safe and effective in the treatment of surgical scars starting as soon as possible, on the day of suture removal if possible. We found that 96.3% of molluscum contagiosum healed after the first treatment, the other 3.7% after the second.