alexa Microbial contamination of enteral feeding formulas and diarrhea.


Journal of Food Processing & Technology

Author(s): Okuma T, Nakamura M, Totake H, Fukunaga Y

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Abstract Twenty-five medical and surgical patients receiving liquid ready-to-use sterile enteral formulas were evaluated prospectively to investigate the relation of diarrhea to serum albumin level, total lymphocyte count, delayed hypersensitivity to purified protein derivative, antibiotic therapy, administration rate and site of enteral formula, and microbial contamination of enteral feeds. Formulas were administered to 6 patients with hang times of up to 6 h by pump-assisted continuous drip and to 19 patients with hang times of up to 3 h as a bolus feeding. Samples of formulas for microbial culture were obtained aseptically before and after feeding on the first and eighth day of the study period. The incidence of microbial contamination of the formula before and after feeding was 1 of 49 samples (2.0\%) and 10 of 48 samples (20.8\%), respectively. There were 2 patients with diarrhea, which occurred on the second day. Formula samples from 2 patients (100\%) with diarrhea and 2 samples from 23 patients (8.7\%) without diarrhea were contaminated with 10(4) cfu/mL or more, respectively. A significant difference (P = 0.04) was detected between the two groups. The other factors studied showed no significant association with the incidence of diarrhea. In conclusion, contaminated formula appears to play a significant role in the etiology of diarrhea in patients receiving enteral feeding.
This article was published in Nutrition and referenced in Journal of Food Processing & Technology

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