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Published on: August 2, 2024
Effect of extracorporeal shock wave therapy on the microbial community in burn scars: retrospective case-control
Yeongyun Jung1, Ryeong-Hui Kim2, Eun Kyung Lee3
1Burn Institute, Hangang Sacred Heart Hospital, Hallym University College of Medicine.
Background:
The effectiveness of extracorporeal shock wave therapy (ESWT) has been demonstrated in various medical fields, including burn medicine. It promotes wound healing, improves blood flow, and modulates the inflammatory responses. The recovery speed and outcomes of skin diseases are influenced by the skin microbiome; however, studies examining the effects of specific treatments on the skin microbiome are lacking. This study investigated the impact of ESWT on the skin microbiome of burn patients, focusing on the microbial diversity and community structure within burn scars.
Materials And Methods:
In the retrospective case-control study, 19 patients with burn scars were treated with ESWT, and changes in their skin microbiome were evaluated. ESWT was administered weekly for 3 months, and samples were collected from the ESWT-treated burn scars and untreated normal skin. Blood chemistry, and pain and itching scores were evaluated during sample collection. The collected samples were then subjected to 16S rRNA sequencing. Microbial community analysis was conducted using the QIIME2 and R packages.
Results:
After ESWT, changes in alpha diversity indices were observed in burn scars. Faith phylogenetic diversity ( P <0.05) and observed features ( P <0.01) increased, whereas the evenness index decreased ( P <0.01); no marked changes were noted in untreated skin. Beta diversity analysis showed stable microbial community structures in both the treated and untreated areas. A considerable increase in Micrococcus and Staphylococcus abundance was observed. Network analysis revealed a more open microbial network structure after ESWT, indicating adaptive changes in the microbial community.
Conclusion:
ESWT enhances microbial diversity and modifies microbial community structure in burn scars, promoting a more balanced and functionally supportive microbiome. ESWT aids in scar remodeling and positively influences skin microbiome dynamics, contributing to improved skin health and recovery.
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