Short‐Term Outcomes of Upper‐Dome Overlap Single‐Flap Valvuloplasty Versus Kamikawa Anastomosis in Robotic Proximal Gastrectomy
Fengyuan Li, Shenglong Xu, Zhongyuan He, Weizhi Wang, Wasit Ahmad Rahmani, Yiwen Xia, Bowen Li, Dinghua Yang, Lei Qian, Yuxin Xu, Tianyu Liu, Wenxing Zhou, Fei Zhang, Zekuan Xu, Yan Wang, Wei Huang, Hongda Liu, Hao XuABSTRACT
Background
This retrospective study compared two reconstruction techniques in 50 patients undergoing robotic proximal gastrectomy: the novel Upper‐Dome Overlap Single‐flap valvuloplasty (UDOS) and the conventional Kamikawa anastomosis.
Methods
Perioperative data, anastomotic time, complication rates, nutritional outcomes, lower oesophageal sphincter pressures, and health‐related quality of life scores were compared between the two groups.
Results
Compared with Kamikawa, the UDOS technique significantly reduced anastomosis time by 39.8% (25.9 vs. 43.0 min). Perioperative safety and early complication rates were comparable. The UDOS group demonstrated a favourable trend in reducing late complications, with a lower incidence of anastomotic stenosis (4.0% vs. 16.0%) and no cases of reflux oesophagitis (0% vs. 8.0%). Both groups achieved similar post‐operative nutritional outcomes, lower oesophageal sphincter pressures, and health‐related quality of life scores.
Conclusions
UDOS offers a technically more efficient alternative to Kamikawa anastomosis with equivalent perioperative safety and potential benefits for reducing long‐term complications, meriting further investigation.