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Photodynamic therapy with ablative carbon dioxide fractional laser in treatment of actinic keratosis.

Authors
Jang, YH | Lee, DJ | Shin, J | Kang, HY  | Lee, ES  | Kim, YC
Citation
Annals of dermatology, 25(4). : 417-422, 2013
Journal Title
Annals of dermatology
ISSN
1013-90872005-3894
Abstract
BACKGROUND: Recently, photodynamic therapy (PDT) has been shown to be an effective first-line treatment for actinic keratosis (AK). However, a major limitation of PDT is the long incubation time required to allow penetration of the photosensitizer.



OBJECTIVE: The aim of this study was to assess if pretreatment with an ablative carbon dioxide (CO2) fractional laser can reduce the incubation time of the photosensitizer.



METHODS: Initially, 29 patients with a total of 34 AK lesions were treated with an ablative CO2 fractional laser at Ajou University Hospital between January and December 2010. Immediately after the laser treatment, topical 20% 5-aminolevulinic acid or methyl-aminolevulinate was applied to the AK lesions and incubated for 70 to 90 minutes. Then, the treated areas were illuminated with a red light source. Improvement was clinically or histologically assessed eight weeks after the treatment.



RESULTS: In spite of the short incubation time, 24 lesions (70.6%) showed a complete response (CR) within three sessions of PDT (10 lesions a clinical CR and 14 lesions a clinical/histological CR). There were no significant side effects associated with the combination of ablative CO2 fractional laser and PDT.



CONCLUSION: Ablative CO2 fractional laser may be considered an additional treatment option for reducing the incubation time of the photosensitizer in PDT.
Keywords
DOI
10.5021/ad.2013.25.4.417
PMID
24371387
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Dermatology
Ajou Authors
강, 희영  |  김, 유찬  |  이, 은소
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