研究目的
To assess and compare efficacy of the 1,500-nm nonablative fractional laser (NAFL) and 10,600-nm ablative fractional laser (AFL) in reducing symptoms and improving the appearance of traumatic or surgical scars.
研究成果
Scar treatment with AFL or NAFL is associated with high patient satisfaction. Objective evaluation of scars did not identify improvement in scar appearance.
研究不足
Variability in scar age, anatomical sites, and their etiology. Only skin Types I to IV were included. The study did not compare laser treatments with no treatment.
1：Experimental Design and Method Selection:
A prospective, randomized, blinded, split-scar study was conducted to compare the efficacy of NAFL and AFL in scar treatment.
2：Sample Selection and Data Sources:
100 patients with scars from trauma or surgery were recruited.
3：List of Experimental Equipment and Materials:
1,550-nm nonablative fractional laser and 10,600-nm ablative fractional laser were used.
4：Experimental Procedures and Operational Workflow:
Each half of the scar was treated with either NAFL or AFL in three sessions at 4-week intervals.
5：Data Analysis Methods:
Patient self-assessment and blinded dermatologist evaluations were conducted using the Patient and Observer Scar Assessment Scale, Manchester Scar Scale, and visual analog scale.
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