Ablative fractional photothermolysis – A novel step in skin resurfacing

Energy‐based devices for the treatment of Acne Scars: 2022 International consensus recommendations

“…Since absorption by water at the 2940 nm wavelength is approximately 10 times the absorption at 10,600 nm, there is less heat diffusion and consequently a narrower rim of surrounding coagulation. This characteristic can be associated with more treatment‐related bleeding and possibly more moderate remodeling results compared to CO 2 47,50–52 …”

“…NAFLs were the first variety of fractional lasers and were designed to create narrow (submillimeter) and widely spaced columnar thermal wounds at a depth and density selected by the operator. This pattern allows treatment at sufficient depths for robust remodeling while minimizing damage to the epidermis and diffuse dermal injury 50,54 . This combination theoretically offers a decreased risk of side effects such as erythema, edema, crusting, infection, and worsening scarring compared to AFL 55,56 .…”

“…This pattern allows treatment at sufficient depths for robust remodeling while minimizing damage to the epidermis and diffuse dermal injury. 50,54 This combination theoretically offers a decreased risk of side effects such as erythema, edema, crusting, infection, and worsening scarring compared to AFL. 55,56 However, this greater margin of safety for NAFL is also likely associated with a need for more treatments and a lower ceiling for overall efficacy compared to AFL.…”

Efficacy and safety of 1550-nm fractional laser in the treatment of acne scars in Chinese patients: A split-face comparative study

“…It creates evenly distributed microscopic photothermal wounds (called micro thermal zones, or MTZ), leaving the peripheral skin tissue intact [6,7] . Because of this unique design [8][9][10] , FL can stimulate the wound-healing response and in turn neocollagenesis with rapid regeneration of epidermis [11,12] . Therefore, such adverse effect as hyperpigmentation and delayed erythema are greatly reduced.…”

A comparison of wound healing between a skin protectant ointment and a medical device topical emulsion after laser resurfacing of the perioral area

“…8,10 These are primarily based on CO 2 and heated erbium:yttrium-aluminum-garnet systems and generate microscopic treatment zones of variable depths and widths through manipulation of the pulse energy delivery. 12,13 This ablative procedure results in faster recovery time, fewer adverse events, and proven efficacy in the treatment of rhytides, scars, and photodamage of the face. 14 In today's environment of limited vacation and sick leave, coupled with cosmetic procedures typically being elective in nature, there is pressure to reduce the recovery time of such procedures while still achieving optimal results.…”