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Clearing Obstructed Feeding Tubes

Department of Medicine, Pitt County Memorial Hospital, Greenville, North Carolina

Karen L. Stegall, B.S.

Nutrition Support Team, Pitt County Memorial Hospital, Greenville, North Carolina

Sidney Trogdon, M.D.

Department of Surgery, East Carolina University School of Medicine, Pitt County Memorial Hospital, Greenville, North Carolina

This is a report of an in vitro study evaluating the ability of six solutions to dissolve clotted enteral feeding, which can cause feeding tube occlusion. The following clotted enteral feeding products were tested: Ensure Plus, Ensure Plus with added protein (Promod 20 g/liter), Osmolite, Enrich, and Pulmocare. Clot dissolution was then tested by adding Adolf's Meat Tenderizer, Viokase, Sprite, Pepsi, Coke, or Mountain Dew. Distilled water served as control. Dissolution score for each mixture was assessed blindly. Best dissolution was observed with Viokase in pH 7.9 solution (p < 0.01). Similar results were obtained when feeding tube patency was restored in eight in vitro occluded feeding tubes (Dobbhoff, French size 8) by using first Pepsi (two/eight successful) and then Viokase in pH 7.9 (six/six successful).

We also report our experience in the first 10 patients with occluded feeding tubes using this Viokase solution injected through a Drum catheter into the feeding tube. In seven patients, this method proved to be successful, and the reasons for failure in three patients include a knotted tube, impacted tablet powder, and a formula clot of 24 hr duration and 45 cm in length. (Journal of Parenteral and Enteral Nutrition 13:81-83, 1989)

Journal of Parenteral and Enteral Nutrition, Vol. 13, No. 1, 81-83 (1989)
DOI: 10.1177/014860718901300181


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