Abstract
Post-operative hypertrophic and atrophic scars are commonly seen as the side effects of continuous mode CO2 laser therapy. Prolonged wound healing is known to cause hypertrophic scars and early reepithelialization with poor collagen synthesis in granulation tissue may result in atrophic operative scars. In this study, these scars were treated with a long-pulsed dye laser under consistent laser settings (Vbeam®, Vbeam Perfecta® : wavelength 595 nm, pulse duration 20-30 msec, fluence 6J / cm2, cryogen spray duration 30-40 msec, and delay 20-30 msec). Treatments were repeated every 2-4 weeks until patient satisfaction was obtained. The results suggest that a long-pulsed dye laser is effective for flattening hypertrophic scars and reducing atrophic scars and can improve skin texture.