Retrospective photographic review of nontattoo indications treated by picosecond laser

Abstract

Dermatology is a rapidly advancing field with many technologies added to the expanding armamentarium of the physician, particularly in the cosmetic sector of the specialty. Patients of all age groups and backgrounds seek treatment for skin conditions; these range from young adults with acne and acne scarring to the elderly requiring skin rejuvenation. energy-based devices (EBDs) are increasingly frequently used for the treatment of different aesthetic dermatological problems. Every technology offers a different mechanism of action, recovery timescale, and adverse effects. New technologies are becoming costlier, and this may have implications on the ratio of service to cost-effectiveness. A well-tolerated EBD procedure that can effectively treat different skin types and multiple skin conditions with minimal adverse effects and shortened downtime might be more economically attractive due to its versatility and favorability among patients and treating physicians alike.Picosecond (PS) lasers were approved by the US FDA in 2012 for the removal of tattoos. 1 The iconic feature of the PS laser is that its pulse duration is less than a nanosecond, achieving a photoacoustic effect and limiting the amount of thermal damage delivered to surrounding tissue. 2,3 Aside from tattoo removal, PS Abstract Background: Picosecond (PS) lasers were approved by the US FDA in 2012 after being shown to remove tattoos with more success and fewer treatments compared with traditional methods. PS lasers were shown to be versatile, indicated for the treatment of lentigines, café-au-lait macules (CALMs), and acne scars and skin rejuvenation. Objective:We report our experience treating our patients for different indications using a PS laser. Methods:We performed a retrospective chart and photographic review of all patients seen between 2016 and 2018 that were treated in our centers with a PS laser for nontattoo indications. Clinical outcomes were evaluated using side-by-side comparisons of the clinical photographs by two blinded, independent physicians using a visual analog scale consisting of six levels of treatment response. Results: A total of 233 patients were studied. Most sought treatment for solar lentigo (27%) and skin rejuvenation (14%). Epidermal nevi exhibited the greatest improvement with treatment, while acne scarring demonstrated the least. Only 24% of patients experienced noteworthy, transient adverse effects. Conclusion: Picosecond lasers were efficacious and safe for a variety of indications. They were effective in treating epidermal nevi and pigmented lesions, such as Lentigines and CALMs. K E Y W O R D S aesthetic improvement, epidermal nevus, laser treatment, picosecond laser, solar lentigines | 613 MEHRABI Et Al.

Treating acne scars in 2020: Use of lasers

“…The picosecond laser (Picoway®, Candela™) is approved for tattoos with fewer treatments in addition to lentigines, café‐au‐lait macules, skin rejuvenation, and acne scars. Mehrabi et al 30 also reports picosecond lasers for acne scarring “works well.” The use of a diffractive lens array headpiece in the study was used on patients in up to six treatments with improvements noted in acne scarring 30 . (Figure 7; Patient with acne scars before and after PS laser treatment).…”

“…Mehrabi et al 30 recently introduced a retrospecitve photographic review of nontattoo indications treated by picosecond laser. The picosecond laser (Picoway®, Candela™) is approved for tattoos with fewer treatments in addition to lentigines, café‐au‐lait macules, skin rejuvenation, and acne scars.…”

“…Retrospective photographic review of nontattoo indications treated by picosecond laser. Permission granted by RightsLink/John Wiley and Sons 30 …”

Efficacy and safety of picosecond 755‐nm alexandrite laser for treatment of nevus of Ota in Taiwanese children: A retrospective study

“…In 2012, the United States Food and Drug Administration approved a picosecond laser system. This technique seemed promising for treating skin pigmentary disorders other than for removing tattoos 22 . Picosecond laser uses less than a nanosecond pulse duration, which achieves a photoacoustic effect and limits the amount of thermal damage transmitted to surrounding tissues 22 .…”

“…This technique seemed promising for treating skin pigmentary disorders other than for removing tattoos 22 . Picosecond laser uses less than a nanosecond pulse duration, which achieves a photoacoustic effect and limits the amount of thermal damage transmitted to surrounding tissues 22 . In laser therapy, the pulse duration is associated with thermal relaxation time and absorption coefficient of the target chromophore 8 .…”