There are several ways to prevent and treat hypertrophic scars. In recent years, lasers have been quite extensively used in treating scars. For example, Pulsed Dye Laser (PDL) and Intense Pulsed Light (IPL) can accelerate mutation of scar, whereas non-ablative and ablative fractional laser can improvescar texture. Dual-wave-length laser treatment is extensively used for blood vessel diseases but is rarely used and less reported for treatment of hypertrophic scars. Our study focuses on the efficacy and safety of dual-wave-length PDL and Nd:YAG in treatment of hypertrophic scars. Twenty-five patients in our study complaining of hypertrophic scars were treated with combined PDL/Nd:YAG laser at 4-6 weeks intervals. Following this, the patients and observers assessed these scars by using Patient Scar Assessment Scale (PSAS) and Observer Scar Assessment Scale (OSAS). The resultsshowed that hypertrophic scar was significantly improved after several laser treatments, and no severe adverse effects were observed. Considering the safety and satisfactory effects of dual-wave-length laser treatment, it can be regarded as a good method for treating hypertrophic scars. This study clearly demonstrates that combined PDL/Nd:YAG laser treatment is an effective, safe and well-tolerated treatment option for hypertrophic scars.
Keywords: Hypertrophic scars; Scar Assessment Scale; combined PDL/Nd:YAG laser.