[Study on the association of gastric conduit width and postoperative early delayed gastric emptying in middle-lower esophageal cancer patients undergoing Ivor-Lewis procedure].

To examine the relationship between gastric conduit width and postoperative early delayed gastric emptying (DGE) in patients with middle-lower esophageal carcinoma who underwent Ivor-Lewis operation.Clinical data of 282 consecutive patients with middle-lower esophageal cancer who underwent the Ivor-Lewis operation by same surgical team in our department from January 2013 to June 2015 were retrospectively analyzed. Patients were divided into three groups according to the width of gastric conduit: width > 5.0 cm as broad group (n=93); width 3.0-5.0 cm as moderate group (n=70); width < 3.0 cm as narrow group (n=119). The gastric conduits of patients in narrow group were completely positioned the esophageal bed and fixed to the pericardium posterior wall. None of patients received pyloroplasty or pylorotomy. Perioperative data, operation-associated complications, and postoperative upper gastrointestinal radiographic results(1 week and 4 weeks after operation) were compared among groups.The baseline data among these groups were comparable in terms of age, gender, tumor TNM staging, pathological types, serum albumin level, and the rate of receiving neoadjuvant therapy(all P>0.05). There were no significant differences in operative time, blood loss, and postoperative hospital stay among groups(all P>0.05). No patients died during perioperative peried. Anastomotic leakage occurred in 2 cases, one from broad group and another from narrow group. The incidences of arrhythmia and postoperative pulmonary complications, including infection, atelectasis, pneumothorax, and pleural effusion were similar among groups (all P>0.05). The average amount of gastric juice drainage in narrow group was (98±57) ml/day, which was markedly lower than that in broad group [(157±62) ml/day, P=0.000] and in moderate group [(123±68) ml/day, P=0.008]. One week after operation, the overall incidence of DGE was 10.6%(30/282), the incidence of DGE in broad, moderate, narrow groups was 17.2%(16/93), 14.3%(10/70), and 3.4%(4/119) respectively, and broad and moderate groups had higher incidence as compared to narrow group (P=0.001 and P=0.006).During the Ivor-Lewis operation, application of a narrow gastric conduit (width < 3.0 cm), which completely position the esophageal bed with fixation to the pericardium posterior wall, can significantly reduce the incidence of postoperative early DGE.