[Surgical treatment outcomes of multimodality therapy for locally recurrent rectal cancer]

The aim of this study was to clarify the status of multimodality therapy for locally recurrent rectal cancer. Between 2000 and 2012, 27 patients with locally recurrent rectal cancer underwent surgical resection. We examined 18 patients treated with preoperative chemo-radiotherapy (CRT group) and 9 patients treated with surgery alone (surgical group). The rate of R0 - resection was 89% in the CRT group and 78% in the surgical group. The mean operative durations for the CRT and surgical groups were 323 min and 289 min, respectively. The mean amount of bleeding was 1,462 g for the CRT group and 2,846 g for the surgical group. There was no significant difference in the rate of postoperative complications between both groups (CRT group: 78%, surgical group: 78%). Regarding local recurrences, the recurrence rate of the CRT group was 28%, whereas that of the surgical group was 67%. The 3-year and 5-year overall survival rates of the CRT group were 71%and 44%, respectively, whereas those of the surgical group were 58% and 22%, respectively. These results showed that CRT treatment was associated with an improvement in prognosis. Preoperative CRT and surgical resection should be the standard treatment for patients with local recurrence.