Propensity-matched Analysis of Three Techniques for Intrathoracic Esophagogastric Anastomosis

Background: A cervical side-to-side stapled esophagogastric anastomosis appears to decrease morbidity compared with traditional hand-sewn techniques. We evaluated our experience with this novel technique in intrathoracic anastomoses and compared the outcome with circular-stapled or hand-sewn techniques.

Methods: All patients undergoing transthoracic esophagectomy from 1999 to 2005 for esophageal cancer with gastric replacement were reviewed. A prospective quality improvement database, telephone interview, and chart review were used to collect data. A side-to-side stapled anastomosis was done in 44 patients, circular-stapled anastomosis in 147, and hand-sewn anastomosis in 23. Propensity scores were generated from 14 variables, which were then used to generate 23 patient triplets. End points included leak, dysphagia, stricture, other major complications, and overall survival. Follow-up was available on all patients.

Results: For matched triplet comparison, no significant difference was noted in anastomotic leaks (8.7% with side-to-side stapled, 4.3% with circular-stapled, and 4.3% with hand-sewn; p = 0.78). Postoperative dysphagia was significantly higher in hand-sewn anastomoses at 56.5% versus 26.1% with side-to-side stapled and 21.7% with circular-stapled (p = 0.04). Stricture requiring esophageal dilation was also increased in hand-sewn at 34.8% versus 8.7% with side-to-side stapled and 8.7% with circular-stapled (p = 0.04). No difference was noted in perioperative mortality, long-term survival, or locoregional recurrences between techniques.

Conclusions: In this carefully matched group of patients, intrathoracic use of the side-to-side stapled esophagogastric anastomosis in esophageal cancer patients is safe and effective. Postoperative dysphagia and need for stricture dilation may be decreased using a stapled compared with a traditional hand-sewn anastomosis.