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KMID : 0602919950010020253
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Journal of the Korean Society of Aesthetic Plastic Surgery
1995 Volume.1 No. 2 p.253 ~ p.266
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Combination Therapy for Nevus of Ots
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Abstract
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The nevus of Ota is a benign dermal melanocytic lesion that has previously been proven difficult to treat with the traditional modalities of dry-ice therapy and abrasion. Recently, the Q-switched laser has been successful treating Ota nevus and
tattoos.
Our study evaluated the treatment of 75 patients using a combination of dry-ice with reduced application pressure and frequency (3-5 times)every 3 weeks, serial excision of the pigment area in upper and lower eyelid, dermabrasion (optionally
applied)
and Q-switched alexandrite laser every 6 weeks. All were administered sequentially as listed.
This method of treatment for congenital onset type of nevus resulted in grade II and III lightening, However, the same treatments applied to puberty-onset type resulted in grade IV and V lightening. Effectiveness of the treatment was closely
related to
the repetitive dose of Q-switched laser on the same sites. Conventional dry-ice and abrasion treatments served only to remove the superficial dermal melanocyte which shielded the deeper dermal melanocyte. Serial excisions of 3-5mm at a 6-12 month
interval on the upper and lower eyelids was effective. With patients under 10 years of age more significant imporvements in grade IV and V lightening were obtained in nearly all cases.
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KEYWORD
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