Unresolved tube occlusions have resulted in concretion of enteral feeds, tearing of the tube, and direct administration of feeds to the esophagus, as well as possible formation of esophageal bezoars.
Dandeles, L. and Lodolee, A. Efficacy of Agents to Prevent and Treat Enteral Feeding Tube Clogs. The Annals of Pharmacotherapy. 2011. 45:676-680