摘要腹腔镜胃癌根治术是目前公认胃癌根治手术的标准方式，其中第6组淋巴结即幽门下区淋巴结清扫需按照规范分步骤进行，术者左侧站位更有利于此区域的淋巴结清扫。利用4K腹腔镜系统可增加手术视野的分辨率及其细腻程度，为术者提供清晰手术视野，从而提高手术精度。达到最佳清扫要求，避免副损伤及并发症。笔者通过手术实例探讨4K腹腔镜胃癌根治术左侧站位幽门下区淋巴结清扫要点。

abstractsLaparoscopic radical gastrectomy is currently recognized as the standard surgical procedure for radical gastric cancer. The dissection of the sixth group of lymph node, that is the inferior pylorus region lymph node, should be performed step-by-step according to standard procedures, and surgeon on left position of patient is more conducive to the lymph node dissection of this area. The 4K laparoscopic system can increase the resolution of the surgical field of view, which provide the surgeon with a clear surgical field of vision, thereby improving the accuracy of operation, achieving the best requirements of lymph node dissection and avoiding side injury and complica-tions. The authors investigate infrapyloric lymph node dissection with the surgeon on left position in 4K laparoscopic radical gastrectomy.