• P J Kearns, D Chin, L Mueller, K Wallace, W A Jensen, and C M Kirsch.
• Department of Medicine, Santa Clara Valley Medical Center, San Jose, CA 95128, USA.
• Crit. Care Med. 2000 Jun 1; 28 (6): 1742-6.

BackgroundEnteral feeding provides nutrients for patients who require endotracheal tubes and mechanical ventilation. There is a presumed increase in the risk of ventilator-associated pneumonia (VAP) with tube feeding. This has stimulated the development of procedures for duodenal intubation and small intestinal (SI) feeding as primary prophylaxes to prevent VAP.ObjectiveTo investigate the rate of VAP and adequacy of nutrient delivery with gastric (G) vs. SI feeding.DesignA prospective, randomized, controlled trial.SettingA medical intensive care unit of a county hospital.PatientsA total of 44 endotracheally intubated, mechanically ventilated patients requiring enteral nutrition.InterventionSubjects were randomized to receive enteral nutrition via G or SI feeding. Protocols directed the placement of the feeding tube and the infusion of enteral nutrition and defined the radiographic and clinical criteria for a diagnosis of VAP.Measurements And OutcomesThe incidence of VAP and the adequacy of nutritional supplementation were prospectively followed. The relative risk of VAP with SI was 1.1 (95% confidence interval 0.96-2.44) compared with G. The SI group received a greater percentage of their caloric requirements (SI 69 +/- 7% vs. G 47 +/- 7%, mean +/- SEM, p < .05). Mortality did not differ between G (26 +/- 9%) and SI (24 +/- 10, p = .86).ConclusionsThere is no clear difference in the incidence of VAP in SI compared with G enteral nutrition. Patients given feeding into the SI do receive higher calorie and protein intakes.

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