[Analysis of the international recommendations for parenteral and enteral nutrition in critical conditions (evidence-based medicine)].

A comparative analysis of current practical recommendations on parenteral (PN) and enteral (EN) Nutrition in critical conditions, developed based on research evidence ASPEN/SCCM (USA), ESPEN (Europe) and SSGP (Canada) along with the similarity found a number of differences in major issues (raised levels of research necessary for the class of recommendations, t he need for and terms of use of PN, glycemic control, achieving the target level of EN), and private (indirect calorimetry, of the EN, the use of individual substrates in PN) as well. The differences make it difficult to select recommendations for use in clinical practice. Over 50% of practical advices are lower grade (based on expert opinion). Difficulties associated with implementation of evidence-based research, different theoretical and practical traditions and resource capabilities in the field of PN and EN in different countries, are the basis for their further harmonization and the development of national best practices in Russia.