Outcomes Of 100 Consecutive Robotic And Minimally Invasive Ivor-lewis Esophagectomy Without Pyloric Drainage
Guhlam Abbas, MD1, Fazil Abbas2.
1West Virginia University School of Medicine, Morgantown, WV, USA, 2West Virginia University, Morgantown, WV, USA.
Objective: Various techniques are used for anastomosis during Ivor-Lewis Esophagectomy. Our preferred approach for esophagectomy is robotic-assisted MIE (RAMIE) without pyloric drainage using a 25-mm stapler. We reviewed our experience to examine the potential effects of these controversial surgical choices. Methods: We queried our prospective institutional database to assess the outcomes of 100 consecutive Ivor Lewis MIEs or RAMIEs performed. All MIEs and RAMIEs were completed using a narrow, straight gastric conduit without a pyloric drainage procedure or chemical injection. Each anastomosis was performed using the Orvil™ 25-mm EEA stapler (Medtronic) and covered with omentum. Results: During the study, 74 patients underwent RAMIE, and 26 underwent MIE (Table 1). Median length of stay was 7 days (IQR 6, 8) and median follow up was 18 months. (IQR 8,28). Eight patients (8%) required pyloric dilation during follow-up for non-specific swallowing problems. Six patients (6%) developed an anastomotic leak requiring endoscopic stent placement, and each was discharged tolerating oral diet within 48 hours. One patient who underwent RAMIE developed a broncho-esophageal fistula requiring tracheostomy. Anastomotic stricture requiring more than 1 dilation occurred in 16 patients (16%; 8 RAMIE [11%] vs 8 MIE [31%], p=0.069). Fifteen patients were readmitted within 30 days (15%; 7 RAMIE [9.4%] vs 8 MIE [31%], p=0.067). Conclusions: In this single-institution series, a routine pyloric drainage procedure was not necessary to ensure adequate conduit drainage, and use of the Orvil™ 25-mm EEA stapler was not associated with increased anastomotic complications. The stricture rate was high, but strictures were easily managed. 
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