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  • Title: Split-face clinical comparative study of fractional Er:YAG (2940nm) laser versus long pulsed Nd:YAG (1064nm) laser in treatment of atrophic acne scar.
    Author: Al-Dhalimi MA, Dahham Z.
    Journal: J Cosmet Laser Ther; 2021 Feb 17; 23(1-2):35-40. PubMed ID: 34409915.
    Abstract:
    Despite various modalities used for treating acne scars, no single treatment modality was significantly satisfactory. We compare the efficacies of fractional Erbium: yttrium aluminum garnet (Er:YAG), 2940 nm, laser versus long-pulsed Neodymium: yttrium-aluminum-garnet (Nd:YAG), 1064 nm, laser for the treatment of acne scars. Twenty patients were treated in a randomized split-face manner. They underwent three sessions at a three-week interval. Assessment of the patient was done before each treatment and 3 months after the end of the treatment sessions. The treatment effect was evaluated objectively, according to Sharquie scores for grading scarring acne vulgaris and digital photographic assessment and subjectively, according to the patient's satisfaction. Results According to objective Sharquie scores, there were no significant differences in the response between the two types of laser used. Based on the visual analog score, there was a significantly higher score of improvement for the side irradiated with fractional Er:YAG (2940 nm) laser. Subjectively, the patients were significantly satisfied with the results on the fractional Er: YAG than on the long pulsed Nd:YAG side. Both lasers were effective, However, the improvement in appearance of acne scars was better with fractional Er:YAG laser with fewer side effects with Long Pulsed Nd:YAG laser.
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