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Proceedings Paper

Photodynamic therapy of human malignant tumors: a comparative study between photohem and tetrasulfonated aluminum phthalocyanine
Author(s): Eugeny Ph. Stranadko; Oleg K. Skobelkin; Grigory Dorofeevit Litvin; Tamara A. Astrakhankina
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Paper Abstract

The analysis of the results of photodynamic therapy (PDT) for treating malignant neoplasms of the skin, mammary glands, tongue, oral mucous, lower lip, larynx, lungs, urinary bladder, rectum and other locations has been made. During 1992-1995 543 tumoral foci in 146 patients have been treated with PDT. All patients were previously treated with conventional techniques without effect or they were not treated due to contraindications either because of severe accompanying diseases or because of old age. A part of the patients had PDT because of recurrences or intradermal metastases in 1-2 years after surgical, radial or combined treatment. Two home-made preparations were used as photosensitizers: Photohem (hematoporphyrine derivative) and Photosense (aluminum sulfonated phthalocyanine). Light sources were: the argon pumped dye laser ('Innova-200,' 'Coherent') and home-made laser devices: copper-vapor laser-pumped dye laser ('Yakhroma-2,' Frjazino), gas-discharge unit 'Xenon' (wavelength 630 nm), gold-vapor laser (wavelength 627.8 nm) for Photohem; while for Photosense sessions we used solid-state laser on ittrium aluminate 'Poljus-1' (wavelength 670 mn). Up to now we have follow-up control data within 2 months and 3 years. Positive effect of PDT was seen in 92.4% of patients including complete regression of tumors in 62.3% and partial -- in 30.1%. Currently, this new perspective technique of treating malignant neoplasms is successfully being used in Russia; new photosensitizers and light sources for PDT and fluorescent tumour diagnostics are being developed as well.

Paper Details

Date Published: 31 January 1996
PDF: 9 pages
Proc. SPIE 2625, Photochemotherapy: Photodynamic Therapy and Other Modalities, (31 January 1996); doi: 10.1117/12.230991
Show Author Affiliations
Eugeny Ph. Stranadko, State Research Ctr. for Laser Medicine (Russia)
Oleg K. Skobelkin, State Research Ctr. for Laser Medicine (Russia)
Grigory Dorofeevit Litvin, State Research Ctr. for Laser Medicine (Russia)
Tamara A. Astrakhankina, State Research Ctr. for Laser Medicine (Russia)


Published in SPIE Proceedings Vol. 2625:
Photochemotherapy: Photodynamic Therapy and Other Modalities
Benjamin Ehrenberg; Giulio Jori; Johan Moan, Editor(s)

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