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Non-ablative scar revision using a long pulsed frequency doubled Nd:YAG laser
Daniel Cassuto1, Guglielmo Emanuelli
1Chirurgia Plastica Estetica, Piazza Cinque Giornate 1, 20129 Milan, Italy. a.cassuto1@virgilio.it
Summary
This study shows that a specific laser treatment effectively improves scar appearance by targeting vascular and pigmented components. Patients experienced significant scar clearance and high satisfaction with minimal side effects.
Area of Science:
- Dermatology
- Aesthetic Medicine
- Laser Surgery
Background:
- Scars are common sequelae of surgery and trauma, often causing aesthetic concerns.
- Traditional scar revision methods may be unnecessary or invasive.
- Targeting vascular and pigmented components can improve scar appearance.
Purpose of the Study:
- To evaluate the efficacy of selective photothermolysis using a long-pulsed frequency-doubled Nd:YAG laser for scar revision.
- To assess the improvement in scar appearance, particularly addressing hypervascularity and hyperpigmentation.
- To determine patient satisfaction and identify any adverse effects.
Main Methods:
- Selective photothermolysis was performed using a long-pulsed frequency-doubled Nd:YAG laser (DioLite 532).
- The treatment targeted vascular and pigmented components in 23 mature scars (over 2 years old) in 22 patients.
- Energy densities ranged from 17-22 j/cm2 (500 micron spot) to 65-90 j/cm2 (200 micron spot).
Main Results:
- An average scar clearance of 81% was achieved after 2.4 treatments.
- Facial scars showed the highest clearance (94% after 2 treatments), while inframammary scars had the lowest (46%).
- Common side effects included transient erythema, swelling, and microcrusting, with no permanent adverse effects reported, even in darker skin types.
Conclusions:
- Long-pulsed frequency-doubled Nd:YAG laser treatment is effective for revising mature scars with vascular or pigmented components.
- The procedure offers significant aesthetic improvement with high patient satisfaction and a favorable safety profile.
- Facial scars respond particularly well, suggesting targeted application for optimal results.