Utility of the stacking method for depressed scar improvement using a 1,064-nm, microlens array, picosecond-dominant laser in Republic of Korea: retrospective clinical study
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Background: The depression type of scars is the most complex problem that a plastic surgeon confronts. Traditionally, many plastic surgeons use the subcision technique for sunken scars to release scar tissue. The mechanism of the subcision technique involves cutting the contracted collagen beneath the pitted scar. The laser-induced optical breakdown effect induced by a fractional picosecond laser could produce vacuoles under the depressed scars in the epidermal and dermal layers, which is similar to the mechanism of subcision. This study investigated the efficacy and safety of a 1,064-nm fractional picosecond laser treatment for depressed scars using a stacking method. Methods: The patients’ medical charts and procedure records were reviewed retrospectively to evaluate the Methodoutcomes and complications after the procedures. The patients were treated with a 1,064-nm fractional picosecond laser at 4-week intervals with a spot size of 3 mm, fluence of 1.5 to 5.5 J/cm2, and frequency of 10 Hz with a combination of microlens arrays. Results: Fifteen and sixteen patients were male and female, respectively. The mean modified Vancouver Scar Scale for the treated scars was 7.75 ± 1.07 points before treatment, which decreased to 4.66 ± 0.87 points one month after the final treatment. The mean patients’ satisfaction scores were 2.11 ± 0.52 before treatment and 4.20 ± 0.72 one month after picosecond laser treatment. Conclusion: The stacking method can cause cavitation at the deep dermis, and cavitation stimulates collagen and elastic fibers. As cavitation is formed, the recovery period is shortened, and the effects of depressed scar treatment are very satisfactory.
Abstract
Background: The depression type of scars is the most complex problem that a plastic surgeon confronts. Traditionally, many plastic surgeons use the subcision technique for sunken scars to release scar tissue. The mechanism of the subcision technique involves cutting the contracted collagen beneath the pitted scar. The laser-induced optical breakdown effect induced by a fractional picosecond laser could produce vacuoles under the depressed scars in the epidermal and dermal layers, which is similar to the mechanism of subcision. This study investigated the efficacy and safety of a 1,064-nm fractional picosecond laser treatment for depressed scars using a stacking method. Methods: The patients’ medical charts and procedure records were reviewed retrospectively to evaluate the Methodoutcomes and complications after the procedures. The patients were treated with a 1,064-nm fractional picosecond laser at 4-week intervals with a spot size of 3 mm, fluence of 1.5 to 5.5 J/cm2, and frequency of 10 Hz with a combination of microlens arrays. Results: Fifteen and sixteen patients were male and female, respectively. The mean modified Vancouver Scar Scale for the treated scars was 7.75 ± 1.07 points before treatment, which decreased to 4.66 ± 0.87 points one month after the final treatment. The mean patients’ satisfaction scores were 2.11 ± 0.52 before treatment and 4.20 ± 0.72 one month after picosecond laser treatment. Conclusion: The stacking method can cause cavitation at the deep dermis, and cavitation stimulates collagen and elastic fibers. As cavitation is formed, the recovery period is shortened, and the effects of depressed scar treatment are very satisfactory.
참고문헌 (11)
- Hazarika N, "The psychosocial impact of acne vulgaris", Indian J Dermatol, 61, pp.515~520 (2016)
- Lipper GM, "Nonablative acne scar reduction after a series of treatments with a short-pulsed 1, 064-nm neodymium : YAG laser", Dermatol Surg, 32, pp.998~1006 (2006)
- Kwang Hyeon Ahn, "Effectiveness of a Fractional Picosecond 1,064-nm Laser in Improving Traumatic Scars with Depression", Medical Lasers, 9(2), pp.179~183 (2020), 대한의학레이저학회[DOI]
- Torbeck RL, "Evolution of the picosecond laser : a review of literature", Dermatol Surg, 45, pp.183~194 (2019)
- Brauer JA, "Use of a picosecond pulse duration laser with specialized optic for treatment of facial acne scarring", JAMA Dermatol, 151, pp.278~284 (2015)
- Kwang Hyeon Ahn, "Usefulness of a 1,064 nm Microlens Array-type, Picoseconddominant Laser for Pigmented Scars with Improvement of Vancouver Scar Scale", Medical Lasers, 8(1), pp.19~23 (2019), 대한의학레이저학회[DOI]
- Yeansu Choi, "Subsurface Fractional Ablative Resurfacing of a Periareolar Scar Using 1,064-nm Picosecond Laser with Micro-Lens Array", Archives of Aesthetic Plastic Surgery, 24(1), pp.36~38 (2018), 대한미용성형외과학회[DOI]
- Tanghetti EA, "The histology of skin treated with a picosecond alexandrite laser and a fractional lens array", Lasers Surg Med, 48, pp.646~652 (2016)
- Spangler AS, "New treatment for pitted scars; preliminary report", AMA Arch Derm, 76, pp.708~711 (1957)
- Orentreich DS, "Subcutaneous incisionless(subcision)surgery for the correction of depressed scars and wrinkles", Dermatol Surg, 21, pp.543~549 (1995)
- Herin Lyu, "In Vivo and Ex Vivo Skin Reactions after Multiple Pulses of 1,064-nm, Microlens Array-type, Picosecond Laser Treatment", Medical Lasers, 9(2), pp.142~149 (2020), 대한의학레이저학회[DOI]