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[Photodynamic therapy in oncological digestive tract surgery]
S Evrard1, M Aprahamian, J Miehe
1Service d'Urgence, CHU, Hôpital Central, Strasbourg.
Presse Medicale (Paris, France : 1983)
|November 16, 1991
Summary
Photodynamic therapy offers a selective, non-damaging approach to treat tumors by using light-activated photosensitizers. Researchers are exploring its use alongside surgery for better cancer treatment outcomes.
Area of Science:
- Oncology
- Photochemistry
Background:
- Photodynamic therapy (PDT) is an emerging antitumoral treatment known for its selectivity and minimal side effects.
- Photosensitizers accumulate in tumor tissues, generating cytotoxic free radicals upon light excitation.
- While haematoporphyrin derivatives are common, various other photosensitizers are under investigation.
Purpose of the Study:
- To evaluate the potential of photodynamic therapy as an adjuvant treatment in surgical cancer excision.
- To assess the clinical and experimental utility of peroperative photodynamic therapy in gastroenterological surgery.
Main Methods:
- Experimental and clinical evaluation of peroperative photodynamic therapy.
- Utilizing photosensitizers that preferentially localize in tumoral tissue.
- Employing light excitation to generate cytotoxic radicals within the tumor.
Main Results:
- Photodynamic therapy demonstrates preferential localization in tumoral tissue.
- Light excitation of photosensitizers leads to the production of cytotoxic free radicals.
- The study is actively evaluating the therapeutic potential in surgical contexts.
Conclusions:
- Photodynamic therapy is a promising antitumoral strategy with potential for adjuvant use in surgical oncology.
- Peroperative photodynamic therapy is being investigated for its efficacy in gastroenterological surgery.