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. 2015 Oct-Dec;8(4):227-9.
doi: 10.4103/0974-2077.172198.

Novel treatment of Hori's nevus: A combination of fractional nonablative 2,940-nm Er:YAG and low-fluence 1,064-nm Q-switched Nd:YAG laser

Brian Wei Cheng Anthony Tian  1
Affiliations

Novel treatment of Hori's nevus: A combination of fractional nonablative 2,940-nm Er:YAG and low-fluence 1,064-nm Q-switched Nd:YAG laser

Brian Wei Cheng Anthony Tian. J Cutan Aesthet Surg. 2015 Oct-Dec.

Abstract

Objective: To demonstrate a combination laser therapy to treat Hori's nevus.

Design: A prospective study.

Setting: A Singapore-based clinic.

Participants: Five female patients, aged 30-46 years, with bilateral malar Hori's nevus.

Measurements: Photographs were taken before treatment and 1 month after laser treatment was completed. These were graded by three independent physicians. The patients were also asked to grade their treatment response subjectively. They were followed up for a total of 3 months after laser treatment to monitor recurrence.

Materials and methods: The fractional nonablative 2,940-nm Er:YAG laser with a fluence of 0.7 J/cm(2), spot size 12 mm, and frequency 15 Hz was used to perform a full-face single-pass treatment. Subsequently, a second pass and third pass over Hori's nevi were done bilaterally till the clinical endpoint of skin whitening. The 1,064-nm Q-switched (QS) Nd:YAG at a fluence of 2.0 J/cm(2), frequency 2 Hz, and 4-mm spot size was used to deliver multiple passes over Hori's nevus till erythema with mild petechiae appeared. We repeated the treatment once a week for 3 more consecutive weeks.

Results: All five patients had above 80% improvement in their pigmentation and two (skin type III) achieved complete 100% clearance. Based on the patients' subjective assessments, all five of them expressed satisfaction and felt that their pigmentation had improved. There were no complications noted.

Conclusion: The fractional nonablative 2940 nm Er:YAG laser and Q-switched 1064nm laser Nd:YAG combination is an effective and safe treatment for Hori's nevus.

Keywords: Hori's nevus; Q-switched Nd:YAG laser; combination laser; facial pigmentation; nonablative Er:YAG laser.

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Figures

Figure 1
Figure 1
Pretreatment photo
Figure 2
Figure 2
After 1 month of laser treatment
See this image and copyright information in PMC

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References

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