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Annals of Surgical Oncology, Vol 2, Issue 3 228-232, Copyright © 1995 by Society of Surgical Oncology

ARTICLES

Intraoperative photodynamic therapy as an adjunct to surgery for recurrent rectal cancer

S. P. Harlow, M. Rodriguez-Bigas, T. Mang and N. J. Petrelli
Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.

BACKGROUND: Locally recurrent rectal cancer is a difficult management problem for the surgical oncologist. Current therapies including radical surgery, radiation and chemotherapy have had little success in producing curative results for these patients. This study incorporated intraoperative photodynamic therapy (PDT) as an adjunct to radical surgery for the treatment of locally recurrent rectal cancer. METHODS: Twenty-two patients were enrolled in a prospective feasibility study and injected with Photofrin (Quadra Logic Technologies, Vancouver, British Columbia, Canada) before surgery. Eight patients were found to be candidates and received PDT after surgical exploration and resection. Seven patients had rectal adenocarcinoma and one had squamous cell carcinoma of the anal canal. RESULTS: Based on the indication for PDT, three patient groups were evaluated: group A, resection of all gross disease with negative pathologic margins in four patients; group B, resection of gross disease with positive pathologic margins in two; and group C, residual bulky tumor in two patients. There was one perioperative death (12.5%), not related to PDT, and one major morbidity due to PDT (12.5%). Local recurrence occurred in six patients (two in group A, two in group B, two in group C). Mean overall survival was 15.4 months for group A, 6.5 months for group B, and 24.5 months for group C. CONCLUSIONS: The results of this study suggest that intraoperative PDT may be administered safely in patients undergoing resection of recurrent rectal cancer. However, its use in the present state of technology appears to be inadequate for control of disease, particularly if bulky tumor or residual microscopic disease is left behind.




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Copyright © 1995 by the Society of Surgical Oncology.