ISSN: 1859 - 2872
Efficacy and safety of Q-switched Nd:YAG laser in the treatment of nevus of Ota at Ho Chi Minh City Hospital of Dermato-Venereology
Main Article Content
Keywords
Abstract
Summary
Objective: To evaluate the efficacy and safety of 1064nm QS Nd:YAG laser in the treatment of nevus of Ota at Ho Chi Minh City Hospital of Dermato-Venereology. Subject and method: A prospective clinical study of 100 patients treated with 1064nm QS Nd:YAG 1064nm laser. The treatment interval was ranging from 6 to 8 weeks. The investigator’s assessment of efficacy and safety was performed at each visit and 4 weeks after the final procedure. Result: Post-treatment lesion areas were statistically reduced in comparison with the baseline ones 8.50 (2.00 - 22.50) cm2 vs 20.00 (9.75 - 38.50) cm2, p<0.001). Among 59 patients completed at least 8 treatments, complete and excellent-good responses were 6.78% and 62.72%, respectively. None of these cases were refractory. Of the 1029 treatments, adverse effects were transient, including post-inflammatory hyperpigmentation (1.45%), hypopigmentation (0.19%), prolonged erythema (0.49%) and no scarring. Conclusion: QS Nd:YAG 1064nm laser is an effective and safe treatment for nevus of Ota.
Keywords: Nevus of Ota, QS Nd:YAG laser, efficacy, safety.
Article Details
References
2. Choi JE, Lee JB, Park KB et al (2015) A retrospective analysis of the clinical efficacies of Q-switched Alexandrite and Q-switched Nd:YAG lasers in the treatment of nevus of Ota in Korean patients. The Journal of dermatological treatment 26(3): 240-245.
3. Felton SJ, Al-Niaimi F, Ferguson JE, Madan V (2014) Our perspective of the treatment of naevus of Ota with 1,064-, 755- and 532-nm wavelength lasers. Lasers in medical science 29(5): 1745-1749.
4. Kar HK, Gupta L (2011) 1064nm Q switched Nd: YAG laser treatment of nevus of Ota: An Indian open label prospective study of 50 patients. Indian journal of dermatology, venereology and leprology 77(5): 565-570.
5. Nam JH, Kim HS, Choi YJ, Jung HJ, Kim WS (2017) Treatment and classification of nevus of Ota: A seven-year review of a single institution's experience. Annals of dermatology 29(4): 446-453.
6. Seo HM, Choi CW, Kim WS (2015) Beneficial effects of early treatment of nevus of Ota with low-fluence 1,064-nm Q-switched Nd:YAG laser. Dermatologic surgery: Official publication for American Society for Dermatologic Surgery 41(1): 142-148.
7. Shah VV, Bray FN, Aldahan AS, Mlacker S, Nouri K (2016) Lasers and nevus of Ota: A comprehensive review. Lasers in medical science 31(1): 179-185.
8. Wang HW, Liu YH, Zhang GK et al (2007) Analysis of 602 Chinese cases of nevus of Ota and the treatment results treated by Q-switched alexandrite laser. Dermatologic surgery: Official publication for American Society for Dermatologic Surgery 33(4): 455-460.
9. Yan L, Di L, Weihua W et al (2018) A study on the clinical characteristics of treating nevus of Ota by Q-switched Nd:YAG laser. Lasers in medical science 33(1): 89-93.
10. Zong W, Lin T (2014) A retrospective study on laser treatment of nevus of Ota in Chinese children--a seven-year follow-up. Journal of cosmetic and laser therapy: Official publication of the European Society for Laser Dermatology 16(4): 156-160.
Article Sidebar
