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Journal of the American College of Nutrition, Vol 13, Issue 4 311-313, Copyright © 1994 by American College of Nutrition

JOURNAL ARTICLE

Review: microbiology of the gastrostomy tube

K. Gottlieb and S. Mobarhan
Loyola University of Chicago, Stritch School of Medicine, Maywood, Illinois.

This review summarizes what is presently known about microbial colonization of silicone gastrostomy feeding tubes and their deterioration. Feeding tubes are frequently colonized by fungal and bacterial organisms. Candida organisms seem to originate from the oral cavity from where they colonize the stomach and the gastrostomy tubes. It appears that many microorganisms are able to metabolize certain polymer additives, and although this is well described for polyvinyl chloride, it is not for silicone elastomers. However, clinical evidence for a role of microorganisms in the deterioration of silicone feeding tubes is very strong. The clinical significance of gastrointestinal tract seeding from gastrostomy tubes, which act as incubators, is not fully understood and deserves further study. Likewise, deterioration of feeding tubes must be investigated systematically to address the safety and economical issues it presents.


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Copyright © 1994 by the American College of Nutrition.