The main purpose of this study is to evaluate the reasonable range of No.4sb lymph node dissection of locally advanced distal gastric cancer.
18 and ≤ 75 years of age; Preoperative gastric cancer patients with pathologically confirmed; Had been treated with Radical resection (D2, R0) of gastric cancer (Lymph node≥16); Willing and able to comply with the program during the study period; Physical condition and organ function allows to tolerable abdominal surgery; Written informed consent provided; Under radical laparoscopic distal subtotal gastrectomy With more than a 6-month life expectancy; No other serious concomitant diseases; Sufficient organ functions; No previous history of chemotherapy or radiotherapy; Clinical stage: T2-4aNxM0; Karnofsky performance status (KPS)>60; Eastern Cooperative Oncology Group Performance Status (ECOG): 0-1.
None
400 patients with advanced gastric cancer，underwent radical laparoscopic distal gastrectomy. Observation of lymph node metastasis in different No.4sb subgroups.
Cohort
Prospective
Not listed
The lymph node metastasis rates in No.4sb-R, No.4sb-C and No.4d groups.
Observation of lymph node metastasis in No.4sb-R, No.4sb-C and No.4d groups.
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