Exploration of Lymph Node Metastasis and Tumor Deposit in the Posterior Gastric Mesentery Following D2 Lymphadenectomy Plus Complete Mesogastric Excision in Patients Who Received Distal Gastrectomy: A Prospective Observational Study

What this Trial Is About

Researchers are evaluating lymph node spread and tumor deposits in the posterior gastric mesentery after distal gastrectomy with D2 lymphadenectomy plus complete mesogastric excision (CME) in patients with gastric cancer. This study aims to provide evidence to improve surgical standards by examining how thoroughly lymph nodes are cleared using this approach compared to traditional methods. The study focuses on patients with advanced or certain early-stage gastric cancers who undergo this specific surgical procedure. Participants receive distal gastrectomy combined with D2 lymphadenectomy and CME, which involves removal of five major mesenteries including the posterior gastric mesentery. This procedure is studied because it removes more lymph nodes than traditional D2 lymphadenectomy alone and may reduce cancer recurrence. The study observes patients who have already undergone this surgery to assess lymph node involvement and tumor deposits. During the study, researchers monitor the rate of lymph node metastasis and tumor deposits in the posterior gastric mesentery for about one year after surgery. Patients are evaluated through pathological examination of surgical specimens and clinical follow-up. The study collects data to help standardize surgical methods for gastric cancer and improve long-term outcomes. Participation lasts on average one year, focusing on careful pathological and clinical assessment after the surgical treatment.

Exploration of Lymph Node Metastasis and Tumor Deposit in the Posterior Gastric Mesentery for Distal Gastric Cancer