腹腔镜袖状胃切除术（LSG）已成为全球范围内广泛采用的减重代谢手术。此手术方法的优点在于不改变胃肠道的自然走向，操作简单，相较于胃旁路等手术方式，具有相同的显著减重和降糖效果。更重要的是，LSG术后患者较少出现营养缺乏等长期并发症。胃食管反流（GERD）是LSG术后主要的并发症之一，对手术效果及患者的生活质量产生不利影响，甚至可能成为二次手术的主要原因。因此，如何降低LSG术后GERD的发生，已成为减重代谢外科领域的研究热点。本文通过回顾胃食管结合部及His角的解剖结构和生理功能，深入探讨了LSG手术中保留His角完整性对减少术后GERD发生的临床意义。

Laparoscopic sleeve gastrectomy (LSG) has become a widely performed metabolic and bariatric surgery worldwide. The characteristic of this surgical method is that it does not change the natural direction of the gastrointestinal tract, and is simple to operate. Compared with surgical methods such as gastric bypass, it has the same significant weight loss and hypoglycemic effect. More importantly, patients with LSG have fewer long-term complications such as nutritional deficiency. However, gastroesophageal reflux disease (GERD) is one of the main complications after LSG, which has a negative impact on the surgical effect and the quality of life of patients, and may even become the main reason for secondary surgery. Therefore, how to reduce the occurrence of GERD after LSG has become a research hotspot in the field of bariatric metabolic surgery. This article explores the clinical significance of preserving the integrity of the His angle in reducing the occurrence of postoperative GERD in LSG surgery by reviewing the anatomical structure and physiological function of the gastroesophageal junction and the His angle.