Efficacy and Safety of 1,064 nm Q-switched Nd:YAG Laser Treatment for Removing Melanocytic Nevi
- Authors
- Kim, Yoon Jee; Whang, Kyu Uang; Choi, Won Bok; Kim, Hyun Jo; Hwang, Jae Young; Lee, Jung Hoon; Kim, Sung Wook
- Issue Date
- May-2012
- Publisher
- 대한피부과학회
- Keywords
- Melanocytic nevi; Nevi; Q-switched Nd:YAG
- Citation
- Annals of Dermatology, v.24, no.2, pp 162 - 167
- Pages
- 6
- Journal Title
- Annals of Dermatology
- Volume
- 24
- Number
- 2
- Start Page
- 162
- End Page
- 167
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/15219
- DOI
- 10.5021/ad.2012.24.2.162
- ISSN
- 1013-9087
2005-3894
- Abstract
- Background: Until recently, the removal of melanocytic nevi has been performed with a CO2 laser or Er:YAG laser. These lasers have been useful for removing affected spots. However, enlargement of spots or some sequelae, including depressed or hypertrophic scars, could develop as unwanted results. The Q-switched Nd:YAG laser has been used to remove deep-seated melanocytes, such as Ota nevus or tattoos. However, there have been no previous experiments performed to test the efficacy and safety of this laser treatment for melanocytic nevi. Objective: The objective of this study was to investigate the efficacy and safety of the 1,064 nm Q-switched Nd:YAG laser for removing melanocytic nevi, including congenital nevomelanocytic and acquired nevomelanocytic nevi. Methods: Two thousand and sixty four Korean patients with small melanocytic nevi were treated with a Q-switched Nd:YAG laser from 2005 to 2009. High-resolution photographs were taken in identical lighting and positions before and after the six weeks of treatment to observe the procedural efficacy. Results: About 70% of the nevi treated using a 1,064 nm Q-switched Nd:YAG laser were completely removed after one session. The other 30% were completely treated within three sessions. The appearance of sequelae such as hollow scars noticeably decreased compared to the results seen in CO2 or Er:YAG laser treatments. Conclusion: Use of the 1,064 nm Q-switched Nd:YAG laser is a safe and effective treatment modality for melanocytic nevi. (Ann Dermatol 24(2) 162 similar to 167, 2012)
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