, Volume 1, Issue 2, pp 105-110

Salvage abdominoperineal resection following combined chemotherapy and radiotherapy for epidermoid carcinoma of the anus

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Background: Up to one-third of patients with anal epidermoid cancer will fail initial chemoradiotherapy (CT-RT) or have local recurrence after treatment. This study evaluates the Memorial Sloan-Kettering Cancer Center (MSKCC) experience with salvage abdominoperineal resection (APR) in these patients.

Methods: Thirty-eight patients who underwent salvage APR following 5-fluorouracil (5-FU), mitomycin C, and radiotherapy over the past 12 years were analyzed by retrospective review. Survival was calculated by the Kaplan-Meier method and comparisons by log-rank analysis.

Results: The indications for APR were recurrent disease after CT-RT in 14 patients and persistent disease in 24 patients. Median follow-up time and survival were 47 and 41 months, respectively. The actuarial 5-year survival was 44%. Twenty-three patients had recurrent disease after APR. Inguinal lymphadenopathy at initial presentation (p<0.05), fixation of tumor to the pelvic sidewall (p<0.01), and pathologic involvement of the perirectal fat (p<0.01) adversely affected survival. Age, gender, initial response to CT-RT, initial stage of the primary tumor, histologic levator muscle involvement, status of perirectal lymph nodes, and extent of lymphadenectomy did not affect survival.

Conclusions: Salvage APR can be expected to yield a moderate number of long-term survivors, but the high rate of disseminated failure suggests the need for additional postoperative treatment.

Presented at the 46th Annual Cancer Symposium of the Society of Surgical Oncology, Los Angeles, California, March 18–21, 1993.