Q开关Nd：YAG激光治疗黑色文身的临床研究

Clinical Research on Q-switched Nd:YAG Laser in Treatment of Black Tattoos

目的：探讨Q开关Nd：YAG激光治疗黑色文身的临床效果。方法：采用Q开关Nd：YAG激光治疗黑色文身200例,能量密度4～8J/cm^2,脉冲宽度5～6ns,重复频率5Hz,光斑直径2～3mm。根据文身的性质需1～7个疗程,疗程间隔6～8周。结果：200例文身中190业余性文身经1～5次治疗,治愈率100%,10例专业性文身经4～7次治疗,治愈率90%。随访3～12个月,无一例发生继发性疤痕和永久性色素改变。结论：Q开关Nd：YAG激光能安全有效去除黑色文身,达到极佳的美容效果。

Objective： To research the clinical effect of black tattoos treated by Q - Switched Nd： YAG Laser. Methods ： 200 cases of patients with black tattoos were included in this prospective clinical study. The Q - Switched Nd： YAG laser at fluence of 4 -8J/ cm^2, pulse width 5 -6nm, spot size 2 or 3 mm,and a pulse repetition rate of 5 Hz was used to treat the lesions. 1 -7 treatments at 6 -8 week intervals were needed depend on the kind of black tattoos. Results： Among all 200 cases of tattoo, cure rate for amateur black tattoos was 100%, for professional black tattoos 90%. Treatments numbered 1 - 5 for the former, 4 -7 for the latter. No scarring or pigmentary changes were noted after follow - up 3 - 12 months. Conclusion： Q - Switched Nd： YAG laser is a safe and effective noninvasive treatment for black tattoos.