Chinese Journal of Tissue Engineering Research ›› 2023, Vol. 27 ›› Issue (35): 5734-5740.doi: 10.12307/2023.841

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A systemic review of the effectiveness and safety of fractional CO2 laser combined with platelet-rich plasma in the treatment of atrophic acne scars

Song Li, Lu Mao, Tang Yi, Liu Yanlin   

  1. Department of Dermatology, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan Province, China
  • Received:2022-10-17 Accepted:2022-11-21 Online:2023-12-18 Published:2023-06-05
  • Contact: Song Li, Department of Dermatology, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan Province, China
  • About author:Song Li, Master, Associate chief physician, Department of Dermatology, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan Province, China
  • Supported by:
    the Project of Sichuan Provincial Health Bureau, No. 120480 (to SL)

Abstract: OBJECTIVE: Atrophic scar is the most common complication of acne, which has a great impact on patients' psychology and quality of life. Fractional CO2 laser combined with platelet-rich plasma shows promising therapeutic prospects. This study systematically evaluated the effectiveness and safety of fractional CO2 laser combined with platelet-rich plasma in the treatment of atrophic acne scars. 
METHODS: The Cochrane Library, PubMed, Web of Science, EMbase, CNKI, WanFang, VIP and Chinese Biomedical Literature Database were searched for literature related to clinical trials on fractional CO2 laser combined with platelet-rich plasma for the treatment of atrophic acne scar up to September 2022. Manual retrieval was conducted to complete the data. The included studies were screened and evaluated for literature quality by two researchers, and finally Meta-analysis was performed using Revman 5.3 software for the included studies, and descriptive analysis was used for data that could not be Meta-analyzed.
RESULTS: A total of 13 studies involving 642 patients were included. Meta-analysis results showed that compared with the fractional CO2 laser alone group, the fractional CO2 laser combined with platelet-rich plasma group had significantly better overall response rate (odds ratio (OR)=3.95, 95% confidence interval (CI)=2.23 to 7.00, P < 0.000 01), better patient satisfaction (OR=4.19, 95% CI=1.05 to 16.76, P=0.04), shorter duration of erythema and edema (mean difference (MD)=-0.98, 95% CI=-1.19 to -0.77, P < 0.000 01; MD=-0.92, 95% CI=-1.36 to -0.48, P < 0.000 1 respectively), less post-inflammatory hyperpigmentation (OR=0.21, 95% CI=0.06 to 0.70, P=0.01), and shorter recovery time and total downtime (MD=-2.79, 95% CI=-3.28 to-2.30, P < 0.000 01; MD=-2.68, 95% CI=
-3.15 to -2.21, P < 0.000 01, respectively).
CONCLUSION: Fractional CO2 laser combined with platelet-rich plasma is more effective than fractional CO2 laser alone, with faster post-operative recovery and less adverse reactions such as erythema, edema and hyperpigmentation.

Key words: fractional CO2 laser, platelet-rich plasma, atrophic acne scar, systematic review, Meta-analysis

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