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Medicine - Critical Care & Emergency Medicine | Metabolism and Artificial Nutrition in the Critically Ill

Metabolism and Artificial Nutrition in the Critically Ill

Guarnieri, G., Iscra, F. (Eds.)

1999, XIV, 237 pp.

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  • About this book

The critically ill patient in intensive care may present with serious metabolic alterations caused directly by the illness or secondarily by complications (e.g. infections, organ failure or sepsis) developing within a few hours of hospitaliza­ tion or in the following days. Among the situations which maintain and further trigger rapidly evolving altered metabolism are complex hormonal reactions, particularly those of the hypothalamus-hypophysis-adrenal axis, and abnormal stimulation of the autonomic nervous system. In fact, the sympathetic nervous system is known to cause significant metabolic alterations. For example, a surgery patient afflicted by septic complications may become hypercatabolic and experience significant nitrogen loss; the altered protein metabolism may in turn heavily influence carbohydrate and lipid metabolism as well. Thus, it is apparent that for optimal care of patients with altered metabolic functions, further knowledge is necessary regarding the physiopathology of metabolism and the physiopathological mechanisms, which alter the consump­ tion of principal energy substrates. Many experimental and clinical studies have investigated the metabolic aspects of individual organs or organ systems. However, for a correct evaluation of such metabolic events, in addition to studying the roles of metabolic enzymes, active metabolites, and the glutathione system, it is interesting to consider the use of indirect calorimetry as a valid and important investigative technique. The critically ill patient with major alterations in nutritional status may require artificial nutritive support administered through either parenteral or enteral routes.

Content Level » Professional/practitioner

Keywords » Enteral nutrition - Insulin - Parenteral nutrition - Sepsis - Trauma - artificial nutrition - body composition - carbohydrate - cells - growth factor - nutrition - pathophysiology - physiology - prevention - surgery

Related subjects » Critical Care & Emergency Medicine - Internal Medicine

Table of contents 

Basics and methods.- 1 — Substrate metabolism in critical illness.- 2 — Measurement of the body composition.- 3 — Energy and ATP: Costs and benefits.- 4 — Indirect calorimetry in the critically ill: Theoretical aspects and practical problems.- Local and systemic effects on metabolism.- 5 — Hormonal response of the hypothalamo-pituitary-adrenal axis in injury.- 6 — Sympathetic nervous system and metabolism.- 7 — Regional and systemic metabolic effects after surgical injury.- 8 — What about metabolism and the glutathione system?.- 9 — Carbohydrate and insulin activity in critically ill patients.- 10 — Muscle catabolism, amino acid flux and protein turnover in injury.- Tpn vs ent nutrition — cost and benefits.- 11 — Total parenteral nutrition vs total enteral nutrition in critically ill patients: Costs and benefits.- New strategies on metabolism and nutrition.- 12 — Hormone and growth factors in intensive care patients: Anabolic strategy or utopia?.- 13 — Which metabolic strategies in the early phase of injury?.- 14 — Effects of artificial nutrition on the immune system cells.- 15 — Selective antioxidants and early artificial nutrition as prevention of multiple organ failure.- 16 — Pharmacological nutrition in ICU patients.- Nutrition — steps for the future.- 17 — Metabolism and nutrition in the critically ill: Steps for the future.- Gut and nutrition.- 18 — The gut in healthy conditions.- 19 — The gut in local and systemic disease.- 20 — Bacterial translocation.- 21 — Gut and nutrients.- Old dilemma or new strategies.- 22 — Parenteral vs enteral nutrition.- Main symbols.

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