Efficacy of ablative fractionated Er:YAG laser in facial acne scars and enlarged pores
10.3760/cma.j.issn.0412-4030.2010.02.013
- VernacularTitle:点阵式Er:YAG激光治疗痤疮瘢痕及毛孔粗大的疗效观察
- Author:
Yan WU
;
Yuanhong LI
;
Xia ZHU
;
Lili JIA
;
Tianhua XU
;
Li ZHANG
;
Honghui XU
;
Hongduo CHEN
- Publication Type:Journal Article
- Keywords:
Ablative fractionated Er:YAG laser;
Acne vulgaris;
Cicatrix
- From:
Chinese Journal of Dermatology
2010;43(2):105-107
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the efficacy of ablative fractionated erbium: yttrium aluminum garnet (Er: YAG) laser in facial acne scars and enlarged pores. Methods Forty-one patients with mild to moderate pitted acne scars and 23 patients with enlarged pores were treated with 81 (9 × 9) bits of facula for 3 to 5 sessions at an interval of 1 month. For acne scars, the pulse duration was medium to long, energy at 800 to 1200 mJ, and number of stacking passes 4 to 8; for enlarged pores, the pulse duration was medium, energy at 800 to 1000 mJ and number of stacking passes 2 to 4. The clinical improvement was evaluated by 2 blinded dermatologists. Meanwhile, the satisfaction rate was self-assessed by patients. Three-dimensional (3D) micro-topography imaging system was used to evaluate the improvement in surface roughness. Results The efficacy reached 82.93% and 86.96% for ache scars and enlarged pores, respectively. The satisfaction rate was 88.80% and 91.30% in patients with ache scars and those with enlarged pores, respectively. After treatment, the Ra and Rz values, as the indicators of roughness, decreased by 18.74% and 21.01%, individually (P < 0.001) in 11 patients including 6 with acne scars and 5 with enlarged pores. Conclusion Ablative fractionated Er:YAG laser can efficiently resurface pitted ache scars and shrink enlarged pores.
