The Clinical Practice Guidelines that were developed in 2003 were validated in a prospective observational study of 59 ICU's involving 638 patients across Canada ICUs. It was found that ICUs that were more consistent with the Canadian clinical practice guidelines (CPGs) were more successful at feeding patients with enteral nutrition!

Click here for details, "Validation of the Canadian Clinical Practice Guidelines for Nutrition Support in Mechanically Ventilated, Critically ill Adult Patients: Results of a prospective observational study" Critical Care Medicine 2004;32:2260. Details