Treatment of macular seborrheic keratoses using a novel 1927-nm fractional thulium fiber laser

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]
Kristel D PolderSuzanne Bruce

Abstract

Macular seborrheic keratoses (SK) are common, benign growths. A novel fractionated 1927-nm thulium fiber laser was selected to investigate efficacy and safety in the clearance of macular SK in nonfacial areas at a private dermatologic laser center. Six subjects (average age 56.8 ± 9.5) with at least four 3-mm or larger macular SK on one extremity, neck, or chest were enrolled and provided informed consent. Subjects received three treatments at 3- to 4-week intervals. Subjects were treated at settings of 10 to 20 mJ with 30% to 55% surface area coverage and four to eight passes at each session. Investigators performed a global extremity SK count, an SK count within a 5- by 5-cm (25 cm(2)) square on transparency mapping, and lesion thickness grading. Side effects were assessed. Patients rated pain using a visual analog scale. At baseline, average global SK count was 43.2 ± 27.3. At 1-month follow-up, 20.7 ± 16.6 lesions remained. At 3- and 6-month follow-up, 17.7 ± 23.8 and 14.7 ± 18.6 lesions remained, respectively. A decrease in thickness and SK counts within the 5- by 5-cm square was also observed. Moderate erythema and mild edema were post-treatment responses. Nonablative fractional resurfacing using the 1927-nm thulium fiber...Continue Reading

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Citations

Jul 5, 2012·Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]·Andrei I Metelitsa
Apr 21, 2016·Lasers in Surgery and Medicine·Vasanop VachiramonKumutnart Chanprapaph
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Nov 7, 2019·Journal of Cosmetic and Laser Therapy : Official Publication of the European Society for Laser Dermatology·G KurmuşC Ergin

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