Reconstruction With a Lawrence-Hunt Jejunal Pouch for Upfront Total Gastrectomy - Study Protocol of a Prospective, Single-arm, Phase II Trial

Total gastrectomy (TG) with Roux-en-Y (RY) esophageal-jejunal anastomosis is performed for various gastric malignancies or as a prophylactic strategy in patients with hereditary diffuse gastric cancer syndrome harboring CDH1 mutation at risk of developing gastric cancer. The surgical procedure is, however, complicated in the post-operative months by weight loss and nutritional deficiency in most patients, requiring frequent follow-up, and by functional issues such as reflux and dumping syndrome in about 30% of cases, which significantly impact the patient's quality of life. To prevent the poorer outcomes reported by patients undergoing total gastrectomy, one strategy could be a modification of the reconstruction method using a jejunal pouch reconstruction (JP) that may mitigate symptoms by slowing gastric emptying and enhancing nutrient absorption. JP has so far proven several benefits in improving postoperative outcomes (reflux and dumping syndrome), nutritional outcomes, and QoL up to 2 years after surgery. The technique has been mostly studied in the Eastern countries (Japan and South Korea) and, since 2021, has been recommended by the French Association of Surgery as the technique of choice for reconstruction after total gastrectomy. However, in most European centers, this technique has not yet been introduced as a routine procedure due to a relative lack of data on the clinical benefit and risk profile in the Western population.