Multiple sequential light and laser sources to activate aminolevulinic acid for rosacea

Area of Science:

• Dermatology
• Photomedicine
• Medical Aesthetics

Background:

• Photodynamic therapy (PDT) with topical aminolevulinic acid (ALA) is used for rosacea.
• Sequential light and laser sources for ALA-PDT in rosacea are not well-documented.

Purpose of the Study:

• To evaluate ALA-PDT for rosacea using sequential blue light with red light, pulsed-dye laser (PDL), and/or intense pulsed light (IPL).

Main Methods:

• Retrospective study of 30 patients (39 treatments) with rosacea.
• Treatment groups included combinations of blue light, red light, PDL, and IPL.
• Patient-reported outcomes assessed adverse events, rosacea improvement, and skin quality.

Main Results:

• No statistically significant difference in patient-reported rosacea or skin quality improvement across groups.
• Blue light + IPL showed less peeling than blue light + PDL and blue light + IPL + PDL.
• No other significant differences in adverse events were noted.

Conclusions:

• Sequential ALA-PDT with multiple light sources for rosacea is safe and well-tolerated.
• This approach did not yield statistically significant improvements in patient-reported efficacy.
• Limitations include small sample size and lack of physician-evaluated outcomes.