关键词: 机器人辅助, 食管裂孔疝修补, 胃底折叠, 胃食管反流, 动物模型

Abstract: To explore the feasibility and safety of robotic esophageal hiatal hernia repair combined with fundoplication in a pig animal model. Methods    From March to April 2022, three pigs were treated with robotic esophageal hiatal hernia repair combined with fundoplication. The fundoplication methods included Nissen fundoplication (360°), Toupet fundoplication (240-270°), and Dor fundoplication (180°). After one folding method, each pig removed the suture and performed another two folding methods in turn. Intraoperative conditions, surgical procedures, technical difficulties, and precautions were recorded. Results    During the operation, the vital signs of the animals remained stable, and there was no conversion to open surgery and no intraoperative bleeding. The operation time of the Nissen fundoplication was (150.3±20.7)min, that of the Toupet fundoplication was (155.0±25.7)min, that of the Dor fundoplication was (144.0±15.7)min, that of installation was 5-15 min, and that of disassembly was 5-10 min. The amount of bleeding was (55.8±7.2)mL. The postoperative recovery was smooth, and no death occurred. Conclusion    Robot-assisted repair of esophageal hiatal hernia combined with fundoplication in pig animal models is safe and feasible, providing surgeons with operation training opportunities. Surgeons can be more proficient in robot operation, esophageal hiatal hernia repair, gastric fundus folding operation steps, and suture skills.

Key words: robot-assisted, repair of hiatal hernia, fundus folding, gastroesophageal reflux, animal model