The influence of neoadjuvant therapy for the prognosis in patients with rectal carcinoma: a retrospective study

Rectal cancer, defined as a cancerous lesion of the colon distal to the rectosigmoid junction, is the fourth most common cancer cause of death globally. There were 474 patients with rectal cancer who underwent surgery between October 2007 and May 2013 enrolled in our center. Patients were respectively categorized by neoadjuvant therapy. This study aimed to explore the predictive factors that affected the Progression-free survival and overall survival of the patients with rectal cancer. Clinical characteristics of patients were compared with the groups and potential prognostic factors were analyzed by SPSS 19.0. In our study, neoadjuvant therapy increased the anus-retained rate (64.4 vs 53.4 % P = 0.016) and remission rate in the treatment group, compared to the non-treatment group (62.6 vs 34.8 %; P = 0.000). The neoadjuvant concurrent chemoradiotherapy, more operative duration, anus retained and micturition damaged are positive prognostic factors of PFS to patients. Poor differentiation, the tumor of ulcer, invasive, and pT4 stage, contributed the poor factors for PFS of patients ( P