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KMID : 1037020170060020093
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Medical Lasers; Engineering, Basic Research, and Clinical Application
2017 Volume.6 No. 2 p.93 ~ p.98
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Long-Term Follow-Up of 1,064-nm Picosecond-Domain Neodymium:Yttrium-Aluminum-Garnet Laser Treatment for Acquired Bilateral Nevus of Ota-Like Macules
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Kim So-Young
Park Ji-Ho
Kim Hee-Su
Cho Sung-Bin
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Abstract
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Acquired bilateral nevus of Ota-like macules (ABNOM) is a common dermal lesion of melanotic hyperpigmentation in Asians. To treat ABNOM, various nanosecond-domain lasers, including Q-switched 694-nm ruby, 1,064-nm neodymium:yttrium-aluminum-garnet (Nd:YAG), and 755-nm alexandrite lasers, have been used. In this report, we treated a patient with ABNOM using 1,064-nm nanosecond-domain and picosecond-domain Nd:YAG lasers. At 3 months after one session of 1,064-nm nanosecond-domain Nd:YAG laser treatment, ABNOM lesions were partially improved. Then, an additional session of 1,064-nm picosecond-domain Nd:YAG laser treatment was delivered to ABNOM lesions. The patient presented nearly complete improvement thereof with no remarkable side effects or recurrence over the duration of 18 months. Picosecond-domain lasers were deemed to generate faster photothermal reactions, more extensive photoacoustic effects, and less injury to adjacent structures than nanosecond-domain lasers. We suggest that 1,064-nm picosecond-domain Nd:YAG laser can be effectively and safely used for treating pigmented lesions in the dermis, particularly ABNOM, in Asian patients.
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KEYWORD
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Acquired bilateral nevus of Ota-like macules, Picosecond, Nanosecond, Neodymium:yttrium-aluminum-garnet laser
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