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Chinese Journal of Injury Repair and Wound Healing(Electronic Edition) ›› 2024, Vol. 19 ›› Issue (05): 429-439. doi: 10.3877/cma.j.issn.1673-9450.2024.05.010

• Evidence-based Research • Previous Articles    

Effectiveness of fractional carbon dioxide laser combined with other non-surgical therapy in treating acne scars: a network meta-analysis

Min Jiang1, Xinzhu Liu1, Dawei Li1, Baigong Feng1, Chuan′an Shen1,()   

  1. 1. Senior Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
  • Received:2024-04-12 Online:2024-10-01 Published:2024-10-08
  • Contact: Chuan′an Shen

Abstract:

Objective

To systematically review the effectiveness of fractional carbon dioxide laser combined with other non-surgical therapy in treating acne scars.

Methods

PubMed, Embase, Cochrane Library, CNKI and WanFang Database were systematically searched to collect randomized controlled trial (RCT) on the effectiveness of fractional carbon dioxide laser and fractional carbon dioxide laser combined with other non-surgical therapy in treating acne scars from inception to June 2023. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. The network meta-analysis was then performed using Stata 16.0 software.

Results

A total of 65 RCTs involving 5 282 patients were included. The results of network meta-analysis showed that in terms of clinical effect score, the main evaluation indicator, fractional carbon dioxide laser combined with other non-surgical therapy was more effective than fractional carbon dioxide laser alone (P<0.05). Among them, fractional carbon dioxide laser combined with silicone gel was the most effective (MD=0.59, 95%CI: 0.47-0.71, P<0.05). In terms of échelle d'évaluation clinique des cicatrices d'acné (ECCA), one of the second evaluation indicators, fractional carbon dioxide laser combined with epidermal growth factor dressing (MD=-0.30, 95%CI: -0.45--0.14, P<0.05), fractional carbon dioxide laser combined with recombinant basic fibroblast growth factor (MD=-0.21, 95%CI: -0.39--0.03, P<0.05) and fractional carbon dioxide laser combined with microneedling (MD=-0.22, 95%CI: -0.38--0.05, P<0.05) showed more significant improvements than fractional carbon dioxide laser alone. Additionally, in terms of skin hydration, one of the second evaluation indicators, fractional carbon dioxide laser combined with epidermal growth factor dressing (MD=0.24, 95%CI: 0.07-0.40, P<0.05) was more effective than fractional carbon dioxide laser alone.

Conclusion

The current evidence shows that fractional carbon dioxide laser combined with silicone gel is the most effective among combined therapies in treating acne scars. Additionally, fractional carbon dioxide laser combined with epidermal growth factor dressing has significant advantage in increasing skin hydration.

Key words: Acne scar, Fractional carbon dioxide laser, Effectiveness, Network meta-analysis

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