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Warren E. Enker, MD; Martin Heilwell, PhD; Abbe J. Janov, MPH; Stuart H. Quan, MD; Gordon Magill, MD; Maus W. Stearns, Jr, MD; Brenda Shank, MD, PhD; Robert Learning, MD; Stephen S. Sternberg, MD

Arch Surg. 1986;121(12):1386-1390.

Abstract
• From 1972 to 1983, we treated 78 patients who had primary epidermoid carcinoma of the anus. Forty-four of these patients were treated by protocol, while 34 patients were not treated according to protocol. Protocol consisted of fluorouracil (750 mg/m for 5 days) and mitomycin (10 to 15 mg/m on day 1), followed sequentially by 3000 rad (30 Gy) over three weeks, followed by surgery. There were 20 local excisions and 29 abdominoperineal resections in the protocol group, and 11 local excisions and 14 abdominoperineal resections in the nonprotocol group. In the protocol group, 26 patients (59%) had no residual cancer in their operative specimens, while only ten (29.9%) of the nonprotocol patients had no remaining cancer. Four (11.7%) of the 34 nonprotocol patients had pathologically positive inguinal nodes, compared with only three (4.5%) of 44 protocol patients. Thirty-four (77%) of 44 protocol patients remained free of disease, while ten patients experienced local or pelvic recurrence. In contrast, only 17 (50%) of 34 patients in the nonprotocol group remained free of disease. Of 17 recurrences, five were at distant sites. The status at this writing of all patients in the protocol group was 32 (75%), with no evidence of disease, four alive with disease, and eight dead of or with disease. Of the untreated patients, only 11 (32%) remained without evidence of disease, two were alive with disease, and 19 were dead of or with disease. Smaller carcinoma size (<5 cm, 27 of 32 had no evidence of disease), younger age, female gender, and deep infiltration also predicted a statistically significant survival advantage after protocol treatment. Controlled, prospective, multi-institutional trials should stratify for these factors when comparing new treatment modalities.

(Arch Surg 1986;121:1386-1390)

Author Affiliations
From the Departments of Surgery (Rectum and Colon Service) (Drs Enker, Quan, and Stearns, and Ms Janov), Medicine (Solid Tumor Service) (Dr Magill), Radiation Oncology (Drs Shank and Learning), Pathology (Dr Sternberg), and the Clinical Information Center (Dr Heilwell), Memorial Sloan-Kettering Cancer Center, New York.

Footnotes
Accepted for publication Aug 13, 1986.

Read before the 39th Annual Meeting of the Society of Surgical Oncology, Washington, DC, May 14, 1986.

Reprint requests to Memorial Sloan-Kettering Cancer Center, 1275 York Ave, New York, NY 10021 (Dr Enker).

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