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Results of abdominoperineal resections for failures after combination chemotherapy and radiation therapy for anal canal cancers

, : Results of abdominoperineal resections for failures after combination chemotherapy and radiation therapy for anal canal cancers. Diseases of the Colon & Rectum 35(6): 574-578

Thirty patients treated with combination chemotherapy (CT) and radiation therapy (RT) for anal canal carcinoma were reviewed retrospectively to analyze the results of abdominoperineal resection (APR) for treatment failures. Mean follow-up was 34.9 months. Twenty-four patients had squamous carcinomas, and six had cloacogenic carcinomas. Twenty-five had negative inguinal lymph nodes, and five had positive inguinal lymph nodes. The group received 5-fluorouracil, mitomycin C, and 30 to 50 Gy of RT. Biopsy was obtained at six weeks posttherapy. Seventeen of 22 patients (77 percent) with primary tumors of less than 5 cm and negative nodes were disease free at 37 months post-CR-RT. None of the seven patients with primary tumors of greater than 5 cm or positive nodes were free of disease. APR was done for positive biopsy in eight patients and for local recurrence (disease detected after six months of treatment) in one patient. Eight of nine patients who had APR died of disease (mean, 20 months), and one of nine died of other causes. A review of published series, including our data, reveals 24 cases of APR post-CT-RT for positive biopsy, with 17 of 24 (71 patient) dead of disease within three years. APR for CT-RT failures has a poor prognosis. Future protocols may determine whether further CT-RT will improve survival. APR for palliation should always remain an option.


PMID: 1587176

DOI: 10.1007/bf02050538

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