Ann Dermatol.  2021 Jun;33(3):254-262. 10.5021/ad.2021.33.3.254.

Efficacy and Safety of Treatment with Fractional 1,064-nm Picosecond Laser with Diffractive Optic Element for Wrinkles and Acne Scars: A Clinical Study

• Lee CH
• Jin EM
• Seo HS
• Ryu TU
• Hong SP

• KMID: 2515744
• DOI: http://doi.org/10.5021/ad.2021.33.3.254

Abstract

Background
Fractional picosecond lasers is effective for the treatment of wrinkles or acne scars.
Objective
To investigate the safety and efficacy of treatment with a fractional 1,064-nm picosecond laser with a diffractive optic element for facial wrinkles and acne scars.
Methods
This prospective open-labeled trial comprised 22 subjects with facial wrinkles or acne scars. Subjects received three laser treatments with a fractional 1,064-nm picosecond laser at 3-week intervals. The efficacy and safety were evaluated at every visit and 2 months after the final treatment (14 weeks from the first treatment session). Global photographic assessments were performed by three blinded dermatologists and the subjects. Skin profilometry was performed using three-dimensional digital photographs; viscoelasticity was measured.
Results
The overall mean global improvement scores assessed by the dermatologists at weeks 3, 6, and 14, were 1.8±1.46, 2.5±1.88, and 3.5±1.84, respectively, and those assessed by the subjects were 2.7±2.08, 4.1±2.24, and 5.0±2.52, respectively. Skin profilometry showed significant improvements in the skin wrinkles, texture, depressions, and pores. The gross elasticity and skin firmness significantly improved by 10.96% and 9.04%, respectively. The major adverse reactions were erythema, pruritus, and petechiae, which disappeared within 2∼3 days.
Conclusion
The fractional 1,064-nm picosecond laser is an effective and safe therapeutic modality for skin rejuvenation.

Keyword

Diffractive optic element; Nd-YAG lasers; Picosecond; Skin rejuvenation