Benefit of an enteral diet enriched with eicosapentaenoic acid and gamma-linolenic acid in ventilated patients with acute lung injury.

Abstract

OBJECTIVE:

To explore the effects of an enteral diet enriched with eicosapentaenoic acid (EPA), gamma-linolenic acid (GLA), and antioxidants on the respiratory profile and outcome of patients with acute lung injury.

DESIGN:

Single-center, prospective, randomized, controlled, unblinded study.

SETTING:

General intensive care department of a tertiary-care, university-affiliated hospital.

PATIENTS:

A total of 100 patients with acute lung injury, diagnosed according to the American-European Consensus Conference on ARDS.

INTERVENTIONS:

Patients were randomized to receive the standard isonitrogenous, isocaloric enteral diet or the standard diet supplemented with EPA and GLA for 14 days.

MEASUREMENTS AND MAIN RESULTS:

Patient demographics, Acute Physiology and Chronic Health Evaluation II score, and type of admission were noted at admission. Compared with baseline oxygenation (EPA + GLA group vs. control group), by days 4 and 7, patients receiving the EPA + GLA diet showed significant improvement in oxygenation (PaO(2)/FIO(2), 317.3 +/- 99.5 vs. 214.3 +/- 56.4 and 296.5 +/- 165.3 vs. 236.3 +/- 79.8, respectively; p < .05). Compliance was significantly higher in the EPA + GLA group observed at day 7 (55.1 +/- 46.5 vs. 35.2 +/- 20.0 mL/mbar, p < .05). No significant difference was found in nutritional variables. Resting energy expenditure was significantly higher in patients in the EPA + GLA group, but their body mass index was also higher (p < .05). A significant difference was found in length of ventilation (p < .04) in favor of the EPA + GLA group. There was no between-group difference in survival.

CONCLUSIONS:

In patients with acute lung injury, a diet enriched with EPA + GLA may be beneficial for gas exchange, respiratory dynamics, and requirements for mechanical ventilation.

• Authors: Pierre Singer, Myriam Theilla, Haran Fisher, Lilly Gibstein, Elad Grozovski, Jonathan Cohen
• Journal: Critical care medicine (Crit Care Med) Vol. 34 Issue 4 Pg. 1033-8 (Apr 2006) ISSN: 0090-3493 [Print] United States
• PMID: 16484911 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't, Comment)

Chemical References

• gamma-Linolenic Acid
• Eicosapentaenoic Acid

Topics

• Adult
• Eicosapentaenoic Acid (therapeutic use)
• Enteral Nutrition
• Female
• Humans
• Male
• Middle Aged
• Prospective Studies
• Respiration, Artificial
• Respiratory Distress Syndrome (therapy)
• Treatment Outcome
• gamma-Linolenic Acid (therapeutic use)