[Artificial nutrition in respiratory failure].

Area of Science:

• Critical Care Medicine
• Nutritional Science
• Pulmonology

Background:

• Patients with chronic respiratory failure often experience nutritional impairments.
• Acute exacerbations of respiratory failure increase the risk of malnutrition, potentially hindering recovery.
• Nutritional support is vital for managing these patients.

Purpose of the Study:

• To outline optimal nutritional support strategies for patients with acute respiratory failure (ARF).
• To emphasize the role of nutrition in modulating inflammatory responses and promoting tissue repair.
• To highlight key nutritional components and modifications for improved patient outcomes.

Main Methods:

• Review of current literature on nutritional support in ARF.
• Discussion of caloric requirements, including normocaloric or mildly hypocaloric strategies.
• Consideration of macronutrient (fat content) and micronutrient (P, Mg, Se) implications.
• Emphasis on qualitative lipid modification and antioxidant use.

Main Results:

• Normocaloric or mildly hypocaloric diets, with approximately 50% fat, are recommended to prevent ventilatory overload.
• Specific micronutrients (Phosphorus, Magnesium, Selenium) play a role in respiratory function.
• Modifying lipid intake by reducing linoleic acid and increasing less inflammatory precursors is beneficial.
• Antioxidants may play a role in managing ARF.

Conclusions:

• Optimizing nutritional support in ARF involves meeting energy requirements while modulating inflammation.
• Strategic adjustments in lipid profiles and the inclusion of antioxidants are key therapeutic considerations.
• Adequate micronutrient supply is essential for supporting respiratory function during acute illness.