期刊
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
卷 45, 期 1, 页码 96-104出版社
MOSBY, INC
DOI: 10.1067/mjd.2001.114288
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Background: Aminolevulinic acid hydrochloride (ALA, Levulan) applied topically to actinic keratoses (AKs) leads to accumulation of the photosensitizer protoporphyrin M, which, when activated by exposure to light, eradicates AKs. Objective: We examined the safety and efficacy of photodynamic therapy using topical 20% ALA in a solution formulation and varying blue light doses to treat multiple AKs on the face and scalp. Method: This is a multicenter, investigator-blinded, randomized, vehicle-controlled study. Results: Thirty-six patients with clinically typical AKs were treated with 20% ALA; 14 to 18 hours later they were irradiated with a nonlaser fluorescent blue Light source. With the optimal light dose of 10 J/cm(2), 88% of the AKs completely cleared 8 weeks after a single photodynamic treatment, compared with 6% after treatment with vehicle and light. Conclusion: Topical ALA PDT using a nonlaser, blue Light source is an effective treatment for multiple AKs.
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