Subdermal Laser-Assisted Scar Subcision (SLASS) Combined With Fractional CO₂ Laser for Acne Scars: Efficacy...

Area of Science:

• Dermatology
• Laser and light-based therapies
• Scar revision

Background:

• Rolling atrophic acne scars involve fibrous attachments to deeper skin layers.
• Traditional subcision is a common treatment for these scars.

Purpose of the Study:

• To evaluate the efficacy and safety of a novel technique: subdermal laser-assisted scar subcision (SLASS).
• SLASS combines a 1470-nm diode fiber laser with ablative fractional CO2 laser for rolling acne scars.

Main Methods:

• A retrospective study involving 42 patients treated with SLASS.
• Utilized a 1470-nm diode laser for subdermal scar release followed by fractional CO2 laser resurfacing.
• Specific laser parameters and energy settings were applied based on scar depth.

Main Results:

• Significant improvement in rolling acne scars observed, with mean reductions of 92.6 points on the ECCA scale and 1.67 points on the SCAR-S scale.
• Statistically significant differences (p < 0.05) were noted for both scales post-treatment.
• No severe adverse effects were reported among the patients.

Conclusions:

• Subdermal laser-assisted scar subcision (SLASS) is a promising treatment for rolling acne scars.
• The technique provides a thermo-mechanical effect, enhancing scar revision.
• Fractional CO2 laser in combination with laser-assisted subcision appears safe and effective.