期刊
BMC CANCER
卷 19, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s12885-019-5621-5
关键词
Adjuvant chemotherapy; Body weight loss; Continuity; Pancreatic cancer
类别
BackgroundPostoperative chemotherapy is beneficial for many pancreatic cancer patients. However, some patients require dose reduction or the discontinuation of adjuvant chemotherapy because of adverse treatment-related effects. In this study, we aimed to evaluate two main outcomes. First, we evaluated the clinicopathological factors affecting patient disease-free survival (DFS) and overall survival (OS) following upfront surgery. Second, we evaluated the factors that influence the continuity of adjuvant chemotherapy.MethodsFifty-four patients with resected pancreatic cancer were enrolled. First, we evaluated the clinicopathological factors affecting postoperative survival using the Kaplan-Meier method and Cox regression method. Next, factors affecting the continuity of adjuvant chemotherapy were analyzed using multiple logistic regression analysis.ResultsUnivariate and multivariate analyses revealed that positive LN metastasis (HR (95% CI) 6.329 (2.381-16.95); p<0.001) and relative dose intensity (RDI) <80% for adjuvant chemotherapy (HR (95% CI) 5.154 (1.761-15.15); p=0.003) were independent predictive factors for DFS. Regarding OS, extended dissection of the nerve plexus around the superior mesenteric artery(SMA) (HR (95% CI) 4.504 (1.721-11.76); p=0.002), positive microscopic surgical margin (HR (95% CI) 5.565 (1.724-17.96); p=0.004), and adjuvant chemotherapy of RDI <80% (HR (95% CI) 3.534 (1.135-2.667); p=0.029) were also independent predictive factors. Moreover, the level of RDI significantly correlated with DFS and OS. Multiple logistic regression analysis revealed that low RDI was significantly associated with postoperative body weight loss (BWL)10%.ConclusionsThe following factors were significantly associated with poor survival: extended dissection of the nerve plexus around the SMA, lymph node metastasis, residual tumor, and RDI of the adjuvant chemotherapy. Patient's prognosis with adjuvant chemotherapy of RDI <80% was worse. BWL 10% was the most important factor affecting the continuity of adjuvant chemotherapy. Perioperative nutritional intervention is necessary for patients who receive adjuvant chemotherapy for advanced pancreatic cancer.
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