O2-6 SKIN REJUVENATION BY PULSE CHANGEABLE DYE LASER

Introduction：Pulse dye laser (PDL) alters structural protein in scars and PDL treatment of photodamaged skin and abnormal dermal vasculature is currently becoming representative. On the other hand, PDL also offers a powerful tool to improve the skin rejuvenation without any obvious side effects. Purpose/Background：To evaluate the effects of PDL treatment to skin rejuvenation in association with photodamaged skin (wrinkle, laxity, senile pigmentation, melasma), scars, acne vulgaris. Methods：We applied PDL to 153 patients and analyzed effects as judged by subjective grading of photos and by patient self-reporting. Every patient received mainly doublepass treatments at 2-4weeks intervals. Treatments were done using a 595nmPDL (Photo Genica V-star) at a pulse duration of 20ms and a 10mm handpiece. Treatment fluences were maintained below the individual's purpuric threshould, ranging from 7 to 10J/cm2. Photos were taken before treatment and during follow up. Conclusion：Every treatment contributed to improvements to skin tone and texture to a various degree, including a reduction in the appearance of rhytids and in particular and pigmentary evenness. No side effects were observed during the follow-up term. As a result, we consider that PDL treatments provide effective photo-rejuvenation with no risk of side effects.