The Use Of Fractional Photothermolysis For The Treatment Of Hypertrophic Scars

Background and Objective:the skin tissue after trauma,due to various aspects of the heali ng process in the healing process will appear excessive proliferation of collagen fibers and will form the hypertrophic scar or keloid.Var ious modalities have been used to treat hypertrophic scars,but limite d efficacy and considerable side effects have restricted their proper use.Recently,the nonablative fractional photothermolysis was used in the treatment of hypertrophic scar.To observe the efficacy and safety of nonablative fractional laser in 17 patients with hypertrophic scars.Methods:17 patients were treated by nonablative fractional laser Lux 1540 nm.According to the degree proper parameter with six sessions at four to six weeks intervals.Clinical assessment was performed by two independent physicians by comparing the digital pictures and scar appearance taken before and one month after each treatment.VSS scores were performed by two physicians before and the last treatment.Patients evaluate the treatment effect after the finial treatment.Results:17 patients were treated to complete six times.With the increase of number of treatment effectiveness is also increasing.After the last t reatment total effective rate 58.8,the satisfaction of patients was 58.8%.We evaluate the total effective rate using VSS,the rate is 64.7 aft er the last treatment.All patients feel mild pain,may be mild skin red ness immediately.The symptom decreased with local ice compress 30 minutes.No side effect(blister,crusting)were observed after the last treatment.During the six months follow-up,one patients appeared hy perpigmentation and after five months recoverd natural.Conclusion:The use of nonablative fractional photothermolysis was shown to be effective and safe for the hypertrophic scars.It is worthy of our further research and application.