Effect of early parenteral nutrition versus enteral nutrition alone on all-cause mortality in critically ill adults: A systematic review and meta-analysis.
BACKGROUND While early enteral nutrition (EN) is standard for critically ill patients with functional gastrointestinal tracts, parenteral nutrition (PN) is needed when EN is contraindicated or insufficient. Optimal PN timing/selection remains controversial. This meta-analysis evaluated the impact of early PN on mortali...