THE EFFICACY OF FRACTIONAL PICOSECOND 1064NM ND-YAG LASER IN THE TREATMENT OF ATROPHIC ACNE SCARS

Tóm tắt

Objectives: To evaluate the efficacy of fractional picosecond 1064nm Nd-YAG laser in the treatment
of acne scar.
Methods: This is a uncontrolled prospective study. 32 patients with atrophic acne scars were enrolled
into study to receive 3 sessions of fractional picosecond 1064nm Nd-YAG laser treatment at 4-week
intervals. The laser settings were 0.8J/cm2 in fluence, 8-mm spot size, 5% coverage and 5Hz in repetition
rate. The primary outcome was the change in Goodman and Baron’s quantitative and qualitative grading
scale between baseline and 3 months after the last treatment.
Results: Goodman and Baron scale significantly decreased after the treatments with 12,1 (± 5.51)
points in mean reduction (p < 0.001). There was a significant improvement in scar color, in which the red
scar color reduced from 24.5% to 3.8% (p < 0.001). There were 73.1% of patients improved a scar degree.
The number of scars (including icepick, rolling, and boxcar scars) also significantly decreased from after
treatment (p < 0.001). No patient developed postinflamatory hyperpigmentation.
Conclusion: Fractional picosecond 1064nm Nd-YAG laser is an effective option for treatmenting
atrophic acne scars.

Received: 16/02/2022
Revised: 21/04/2022
Accepted:  18/05/2022