The aim of this study was to observe pathological response and change in serum vascular endothelial growth factor (VEGF) in esophageal carcinoma (EC) during chemoradiotherapy (CRT).Eighty-nine patients diagnosed with EC were treated with radiotherapy at the Department of Radiotherapy of the Second People's Hospital of Changzhou between May 2008 and December 2014, including 65 patients with CRT. Gastroscopy and pathological examination were conducted 4 weeks afterwards. The pathological responses were classified as complete response (CR) and non-CR. Serum samples were collected from the patients before radiotherapy, during week 4 of radiotherapy, and 1 week after radiotherapy. The VEGF changes were classified as increase, stable, and decrease.The median overall survival (OS) and median progression-free survival (PFS) in the pathological CR group was significantly longer than that of the non-CR group (P < .001). The 1-, 3-, and 5-year OS rates in the non-CR group were lower than that in the CR group (P < .05). Moreover, the 1-, 3-, and 5-year PFS rates in the non-CR group were lower than that in the CR group (P < .05). VEGF serum level was decreased during and after radiotherapy compared with pre-radiotherapy, and the differences were statistically significant (P < .05). The 1-, 3-, and 5-year OS rates in the increased group were lower than that in the decreasing group (P < .05). Moreover, the 1-, 3-, and 5-year PFS rates in the increasing group were lower than that in the decreasing group (P < .05). Pathological response (P < .05), serum VEGF trend (P < .05), and tumor-node-metastasis stage (P < .05) in response to CRT were factors that influenced patient prognosis.Pathological response and serum VEGF change during CRT can predict prognosis of nonsurgical patients with EC. Monitoring these changes is of significance in individualized treatment.
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| http://dx.doi.org/10.1097/MD.0000000000015627 | DOI Listing |
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