Purpose: To compare the surgical complication rate after further experience with infusional chemotherapy and radiation therapy for locally advanced rectal cancer.
Materials and methods: Preoperative radiation therapy (45 Gy in 25 fractions over 5 weeks) and concurrent continuous infusion of 5-fluorouracil (300 mg.m-2.d-1) were given to 117 patients with rectal cancer. Approximately 6 weeks after therapy, surgery was performed.
Results: The histopathologic cancer stages were Tis-2N0 in 30 patients (26%), T2N1 in six (5%), T3N0 in 24 (21%), T3N1 in 18 (15%), T4N0 in six (5%), and T4N1 in one (1%); a complete response to preoperative therapy was histopathologically confirmed in 32 patients. A decrease in cancer stage allowed a sphincter-saving procedure in 68 patients (58%) and abdominoperineal resection in 49 patients (42%). Only one patient developed fistula; nine patients, perioperative wound complications; and four patients, pelvic infection. In the authors' previously reported chemotherapy and radiation therapy results (same protocol), eight (22%) of 37 patients developed fistulas and five (14%) developed pelvic abscess; in the authors' previous experience with preoperative radiation therapy only (median total dose, 45 Gy; dose range, 40.0-59.4 Gy), results were similar.
Conclusion: Surgical complications after chemotherapy and radiation therapy are statistically significantly (P < .05) reduced with further experience.