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Updated: Jun 15, 2026

Basic Research in Plasma Medicine - A Throughput Approach from Liquids to Cells
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A first prospective randomized controlled trial to decrease bacterial load using cold atmospheric argon plasma on

G Isbary1, G Morfill, H U Schmidt

  • 1Department of Dermatology, Hospital Munich Schwabing, Kölner Platz 1, D-80804 Munich, Germany. dr.isbary@googlemail.com

The British Journal of Dermatology
|March 13, 2010
PubMed
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This summary is machine-generated.

Cold atmospheric argon plasma effectively reduces bacteria in chronic wounds. This safe and painless treatment shows potential for improving wound healing by decreasing bacterial load.

Area of Science:

  • Wound healing research
  • Plasma medicine
  • Antimicrobial therapies

Background:

  • Bacterial colonization impedes chronic wound healing.
  • Cold atmospheric plasma (CAP) demonstrates in vitro antimicrobial properties.
  • Investigating CAP for chronic wound bacterial reduction is warranted.

Purpose of the Study:

  • To evaluate the safety and efficacy of cold atmospheric argon plasma (CAAP) for reducing bacterial load in chronic wounds.
  • To assess CAAP as a novel therapeutic approach for chronic wound management.

Main Methods:

  • A prospective randomized controlled phase II study involved 38 chronic infected wounds in 36 patients.
  • Daily 5-minute treatments of CAAP were administered alongside standard wound care.
  • Bacterial load was quantified using bacterial swabs and nitrocellulose filters, with patients serving as their own controls.

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Main Results:

  • A significant 34% reduction in bacterial load was observed across all treated wounds (P < 10(-6)).
  • The reduction was consistent regardless of the specific bacterial species present.
  • No adverse side effects were reported, indicating good patient tolerance.

Conclusions:

  • Cold atmospheric argon plasma (CAAP) presents a potentially safe and painless method for decreasing bacterial burden in chronic wounds.
  • CAAP therapy may promote wound healing through its antimicrobial effects.
  • Further research into CAAP as a clinical tool for chronic wound care is supported by these findings.