Povidone-iodine and the Normal Saline Cleaning the Incision for the SSIs

Standard Operating Procedure (SOP) 1. Preoperative evaluation Patients satisfied with inclusion/exclusion criteria will be informed to join in the clinical study and signature the inform consent. 2. Randomization: Preoperative evaluation found that total or subtotal gastrectomy can be performed, the case will entrance into the Randomization period. Random numbers are computer-generated, with the third party applications. 3. Procedures: The surgical treatments is adopted the conventional open total or subtotal gastrectomy according to the Japanese Gastric Cancer treatments guidelines, 2010, Version 3. Patients in the Group A using the mixed solution with 400ml,0.9% normal saline and 100 ml，5%, povidone-iodine solution， and patients in the Group B with 500ml 0.9% normal saline solution to wash the abdominal surgical incision. 4. Postoperative recovery: Postoperative recovery period need to collect those relevant parameters of all the patients. All the relevant parameters had definitely definition in the Case Report Form of this study which included the preoperative, intraoperative and postoperative clinicopathologic characteristics. 5. Follow-up: Follow-up will last to the 30-day of the postoperative period. The postoperative complications is graded by the Clavien-Dindo classification. And the surgical site infections are the focus of this study.