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.