Effects of pulse dye laser on cosmetic suturing scar / 中华医学美学美容杂志

ABSTRACT

Objective To evaluate the effects of the pulsed-dye laser (PDL) at a wave length of 595 nm in treatment of scar after cosmetic suturing.Methods Twenty patients after cosmetic suturing were randomly assigned to the treatment group and control group.Each group had ten patients.The scar of patient was evaluated with the Vancouver scar scale (VSS).The treatment group was treated with 595 nm PDL for three times,and the control group did not receive any treatment.Follow-up was arranged at one mouth after the last treatment.Acquired score was compared with paired T-test transversely and longitudinally.Results Pre-operation VSS was 3.80± 1.48 and post-operation VSS was 5.20±2.66 in control group,which had no statistic difference (P ＜ 0.05).Pre-operation VSS was 4.10 ± 1.20 and post-operation VSS was 2.80±1.23 in treatment group,which showed statistic difference (P＞0.05);scars were much normal in treatment group,including less vasculature,more flatter and softer.VSS in the control group postoperatively had no statistic difference as compared with the treatment group (4.10±1.20 vs.3.80±1.48,P＞0.05).VSS in the treatment group showed significant statistic difference between pre-operation and post-operation (2.80 ± 1.23 vs.5.20 ± 2.66,P ＜ 0.05).Conclusions 595nm PDL is a safe and effective treatment in improving the appearance of scars after cosmetic suturing.