Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .
Nonablative 1,064‐nm Nd: YAG Laser for Treating Atrophic Facial Acne Scars Histologic and Clinical Analysis
BACKGROUND Non-ablative methods have been attempted in treating atrophic facial scars , but the histologic findings do not always coincide with the clinical results and patient satisfaction . OBJECTIVE To study the effects and safety of the Nd : YAG laser for treating atrophic facial scars . MATERIAL AND METHODS Twelve subjects ( skin phototypes II-V ) with mild to moderate atrophic facial acne scars received five monthly treatments with 1,064 nm Nd : YAG laser and were photographed before , in the middle of , and 6 months after the last treatment . Histologic evaluations were performed on skin biopsies obtained before treatment and 1 month after the last session . Collagen quantification per area , before and after the treatment , was performed by morphometry , with computerized image analysis . Patient satisfaction and clinical condition were assessed using st and ard grading scales . RESULTS Mild to moderate clinical improvement was observed in most patients . Photographic assessment of scars found visible cosmetic improvement in eleven patients . All patients were satisfied . There were statistically significant collagen increases in the dermis following the treatment . Side effects were limited to mild transient erythema and increased skin sensitivity after the procedure . CONCLUSIONS The 1,064 nm Nd : YAG laser is a safe and effective nonablative method for improving atrophic scars , even in darker skin
Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .