Perioperative PD-1 inhibitor plus chemotherapy versus chemotherapy alone in gastric cancer with PAN metastasis undergoing D2 gastrectomy and PAND: a single-center retrospective cohort study
ObjectivesResearch on the efficacy of perioperative immunotherapy for gastric cancer with para-aortic lymph node (PAN) metastasis remains limited. This study aimed to compare the safety and efficacy of chemotherapy plus programmed cell death protein-1 …