Clinical effects of 532 nm picosecond and nanosecond Nd∶YAG laser in treatment of early seborrheic keratosis
10.3760/cma.j.issn.1671-0290.2023.03.014
- VernacularTitle:532 nm皮秒与调Q纳秒Nd∶YAG激光治疗脂溢性角化病的效果
- Author:
Meiqing CHU
1
;
Yunyi GUO
;
Ying ZHU
;
Zhiye CAI
;
Zhonghui SUN
Author Information
1. 上海市奉贤区皮肤病防治所皮肤科，上海 201404
- Keywords:
Keratosis, seborrheic;
Picosecond laser;
Nanosecond Q-switched Nd∶YAG laser;
532 nm
- From:
Chinese Journal of Medical Aesthetics and Cosmetology
2023;29(3):223-226
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the efficacy and adverse reactions of picosecond and nanosecond Nd∶YAG laser 532 nm in the treatment of seborrheic keratosis.Methods:A total of 30 patients with seborrheic keratosis were enrolled in this study. The rash size was more than 1-2 cm. Half of them were treated with picosecond laser and the other half with nanosecond Q-switched Nd∶YAG laser by wavelength of 532 nm. The treatment effect and adverse reactions were evaluated by observing the area and the disappearance of pigment. The patients were followed up for 3 months after treatment.Results:The total effective rate was 73.33% in the experimental group and 53.33% in the control group, with no significant difference between the two groups ( P>0.05), but the pain score, satisfactory score, scab shedding time and the incidence of pigmentation in the experimental group were lower than those in the control group, and the differences were statistically significant ( P<0.05). Conclusions:The 532 nm picosecond laser has a higher efficiency in treating seborrheic keratosis than 532 nm Q-switched Nd∶YAG, but it has no statistical significance. However, the self satisfaction is higher than that of the control group; the pain score, scab shedding time and the incidence of pigmentation are lower than those of the control group, with statistical significance. Therefore, picosecond 532 nm laser treatment of early seborrheic keratosis is worthy of clinical promotion.
