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Pulsed dye laser therapy for sun damaged skin.
B D Zelickson1, S L Kilmer, E Bernstein
1University of Minnesota, Skin Specialists Inc., Abbott Northwestern Hospital Laser Center, Minneapolis, Minnesota 55414, USA.
Lasers in Surgery and Medicine
|September 24, 1999
Summary
Pulsed dye laser treatment effectively improved sun-induced wrinkles. Mild to moderate wrinkles saw 90% improvement, while 40% of severe wrinkles showed observable changes, indicating collagen remodeling.
Area of Science:
- Dermatology
- Aesthetic Medicine
- Laser Technology
Background:
- Sun-induced wrinkles are a common cosmetic concern.
- Previous treatments have varying degrees of efficacy.
- Pulsed dye laser (PDL) offers a potential therapeutic option.
Purpose of the Study:
- To assess the clinical effectiveness of pulsed dye laser (585 nm, 450 ms) for treating sun-induced wrinkles.
- To evaluate the histological changes in the skin following PDL treatment.
Main Methods:
- A single-center study involving 20 patients with mild-to-moderate or moderate-to-severe sun-induced wrinkles.
- Treatment administered using a pulsed dye laser (585 nm, 450 ms).
- Clinical assessment of wrinkles by blinded observers at 6 weeks, 12 weeks, and 6-14 months post-treatment, supplemented by light and electron microscopy.
Main Results:
- Significant clinical improvement observed in 90% of patients with mild to moderate wrinkles.
- 40% of patients with moderate to severe wrinkles showed clinically observable improvement.
- Histological analysis revealed a superficial dermal band of organized elastin and collagen, indicating dermal remodeling.
Conclusions:
- Pulsed dye laser treatment is an effective modality for improving sun-induced wrinkles, particularly in mild to moderate cases.
- The treatment promotes dermal collagen remodeling, contributing to wrinkle reduction.
- Further research may explore optimized parameters for severe wrinkles.
