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  • Title: Treatment of sebaceous gland hyperplasia by photodynamic therapy with 5-aminolevulinic acid and a blue light source or intense pulsed light source.
    Author: Gold MH, Bradshaw VL, Boring MM, Bridges TM, Biron JA, Lewis TL.
    Journal: J Drugs Dermatol; 2004; 3(6 Suppl):S6-9. PubMed ID: 15624735.
    Abstract:
    Treatment of SGH by ALA-PDT with Blue Light Source or Intense Pulsed Light Activation. Sebaceous gland hyperplasia (SGH) lesions often present as a sign of photoaging and have proven difficult to treat. Photodynamic therapy (PDT) may be an effective treatment option. Twelve patients with SGH received PDT with 5-aminolevulinic acid (ALA, Levulan Kerastick, DUSA Pharmaceuticals, Inc) photosensitizing agent topically applied with a 30- to 60-minute drug incubation period. Patients received either 405-420 nm blue light (ClearLight PhotoClearing System, CureLight, Lumenis) for 15 minutes or intense pulsed light (IPL), 500-1,200 nm and 550 nm cut-off filter (VascuLight System, Lumenis) according to a randomization protocol. ALA-PDT was administered once per month for 4 consecutive months. Progress was evaluated at 4 and 12 weeks after the final treatment. More than a 50% reduction in the number of SGH lesions was achieved for patients in both treatment arms without lesional recurrence during the treatment and follow-up periods. All treatments were well-tolerated. Adverse effects were limited to mild, transient erythema (n = 2) and blisters (n = 1), which resolved without sequelae. ALA-PDT with either blue light or IPL photoactivation may provide therapeutic benefit without significant adverse effects in patients with SGH.
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