Gastric Cancer Treatment Protocol

The study was conducted in accordance with the Helsinki Declaration (as revised in 2013). This study was approved by the Ethics Committee of Weifang People's Hospital. All patients consented to data being used for research when receiving treatment. Inclusion criteria were as follows: Aged 18 to 80, gastroscopic biopsy-confirmed gastric cancer, pathological staging (pT1∼4_aN0∼3M0), obtain informed consent of patients. Exclusion criteria were as follows:received neoadjuvant radiotherapy and chemotherapy prior to surgery, Palliative surgery, history of other primary malignacies, incomplete information or loss to follow-up. A flowchart of the study is shown in Figure 1.
The study protocol was approved by the research ethics committee of Weifang People's Hospital. Written informed consent was obtained from all patients prior to surgery. Each patient signed an informed consent to allow their treatment-related information to be used in future studies.