Posterior Cologastric Anastomosis: An Effective Antireflux Mechanism in Colonic Replacement of the Esophagus.

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Posterior Cologastric Anastomosis: An Effective Antireflux Mechanism in Colonic Replacement of the Esophagus.

Ann Thorac Surg. 2016 Jan;101(1):266-73

Authors: AbouZeid AA, Zaki AM, Safoury HS

Abstract
BACKGROUND: The colon may be used to replace a portion of the esophagus in pediatric patients, but prevention of gastrocolic reflux is a concern. We report our experience with the retrosternal colon bypass, and the effect of combining the procedure with a posterior cologastric anastomosis on prevention of gastrocolic reflux.
METHODS: The study included 35 consecutive pediatric patients who underwent retrosternal colon bypass during the period of 2010 through 2014. In standard practice, the cologastric anastomosis is performed at the anterior gastric wall. Lately, we modified our technique by shifting the cologastric anastomosis to the back of the stomach away from the anterior adhesions around the gastrostomy. In follow-up, a gastrogram was performed to check for gastrocolic reflux.
RESULTS: The indication for esophageal replacement was postcorrosive esophageal stricture in 19 patients and long gap esophageal atresia in 16 patients. Their mean ages were 51 and 16 months, respectively. No gastrocolic reflux was detected with the posterior cologastric anastomosis, whereas reflux was always present with the anterior cologastric anastomosis. We had two mortalities and one major morbidity (hematemesis and failure to thrive) that were related to regurgitation of gastric contents into the colonic conduit. The last patient was successfully managed by transferring the cologastric anastomosis from the front to the back of the stomach, with marked symptomatic and radiologic improvement.
CONCLUSIONS: After colonic replacement of the esophagus, the gastrocolic reflux represents a functional problem that may lead to serious complications. Combining a posterior cologastric anastomosis with retrosternal colon bypass is an effective way to avoid this problem.

PMID: 26377064 [PubMed - indexed for MEDLINE]

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