Analysis of 116 cases of rectal cancer treated by transanal local excision

Gongping Sun, Yuanxin Tang, Xiaoxia Li, Jin Meng, Gaofeng Liang, Gongping Sun, Yuanxin Tang, Xiaoxia Li, Jin Meng, Gaofeng Liang

Abstract

Background: The purpose of this research was to evaluate the therapeutic effects and prognostic factors of transanal local excision (TAE) for rectal cancer.

Methods: We retrospectively analyzed 116 cases that underwent TAE for rectal cancer from 1995 to 2008. A Cox regression analysis was used to analyze prognostic factors.

Results: The survival times for the patients were from 14 to 160.5 months (median time, 58.5 months). The 5-year and 10-year overall survival rates were 72% and 53%, respectively. In all 16 cases experienced local recurrence (13.8%). Pathological type, recurrence or metastasis, and depth of infiltration (T stage) were the prognostic factors according to the univariate analysis, and the latter two were independent factors affecting patient prognosis. For patients with T1 stage who underwent adjuvant radiotherapy, there was no local recurrence; for those in T2 stage, the local recurrence rate was 14.6%. In addition, there was no difference between the patients who received radiotherapy and those who did not (T1: P = 0.260, T2: P = 0.262 for survival rate and T1: P = 0.480, T2: P = 0.560 for recurrence).

Conclusions: The result of TAE for rectal cancer is satisfactory for T1 stage tumors, but it is not suitable for T2 stage tumors.

Figures

Figure 1
Figure 1
Survival and recurrence rate for patients. (A) Survival curve of patients at T1 stage. (B) Survival curve of patients at T2 stage. (C) Recurrence curve of patients at T1 stage. (D) Recurrence curve of patients at T2 stage.

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