Liu Yan, Zeng Weihui, Li Di, Wang Weihua, Liu Feng
a Laser Cosmetology Center of Department of Dermatology, the Second Hospital , Xi'an Jiaotong University , Xi'an , Shaanxi , China.
b Institute for Communicable Disease Control and Prevention, Shaanxi Provincial Center for Disease Control and Prevention , Xi'an , Shaanxi , China.
J Cosmet Laser Ther. 2018 Nov-Dec;20(7-8):410-414. doi: 10.1080/14764172.2018.1444772. Epub 2018 Mar 9.
Nevus of Ota can be treated successfully using the Q-switched (QS) laser; but few studies are long-term retrospective of the efficacy and influencing factor, studies on the recurrence is even less.
Retrospective analysis of the clinical characteristics and recurrence of QS Nd:YAG laser treatment of nevus of Ota in 224 Chinese patients at Laser Cosmetology Center of Department of Dermatology, the Second Hospital, Xi'an Jiaotong University.
The data of 224 patients with nevus of Ota were analyzed retrospectively, which included the correlation among lesion color, treatment sessions, gender, age, lesion types and effect, and all patients were followed up for 2-10 years.
Higher number of treatment sessions that were conducted using the QS Nd:YAG laser system was positively associated with better responses to treatment. 99.11% of patients acquired more than 75% improvement with an average of 3.7 sessions. Only eight patients (3.57%) who had been completely cleared developed recurrence at the same site as before.
The treatment of nevus of Ota with QS Nd:YAG laser is safe and effective with rare recurrence.
太田痣可通过调Q（QS）激光成功治疗；但很少有长期回顾性研究其疗效及影响因素，关于复发的研究更少。
回顾性分析西安交通大学第二附属医院皮肤科激光美容中心224例中国患者接受QS Nd:YAG激光治疗太田痣的临床特征及复发情况。
回顾性分析224例太田痣患者的数据，包括皮损颜色、治疗次数、性别、年龄、皮损类型与疗效之间的相关性，所有患者随访2至10年。
使用QS Nd:YAG激光系统进行的治疗次数越多，治疗反应越好。99.11%的患者改善率超过75%，平均治疗3.7次。仅8例（3.57%）完全清除的患者在原部位复发。
QS Nd:YAG激光治疗太田痣安全有效，复发罕见。
