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Low-level photodynamic therapy in chronic wounds
Pan Chen1, Yongzhen Zou1, Yueling Liu1
1Department of Dermatology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
Photodiagnosis and Photodynamic Therapy
|April 13, 2024
Summary
Photodynamic therapy (ALA-PDT) effectively treats chronic wounds, even those with infections. This innovative approach offers a safe and successful alternative when traditional methods fail, promoting complete healing in most patients.
Area of Science:
- Dermatology
- Photomedicine
- Wound Care
Background:
- Chronic wounds fail to heal properly and often present with microbial infections.
- Conventional treatments like debridement, antibiotics, and dressings are often insufficient for chronic wound healing.
Purpose of the Study:
- To evaluate the safety and effectiveness of aminolevulinic acid photodynamic therapy (ALA-PDT) for treating chronic infectious wounds.
Main Methods:
- Ten patients with treatment-resistant chronic wounds received ALA-PDT every two weeks.
- Treatment involved applying 5% ALA solution, incubation, and red light irradiation.
- Patients were monitored for adverse reactions and followed for three months post-treatment.
Main Results:
- ALA-PDT demonstrated favorable outcomes in patients resistant to traditional therapies.
- Complete wound healing was achieved in 90% of participants.
- Adverse reactions, including pain, erythema, and swelling, were temporary and well-tolerated.
Conclusions:
- ALA-PDT is an effective treatment for chronic wounds, including those with infections or systemic complications.
- The therapy is safe and well-tolerated, offering a viable alternative to conventional treatments.

