Acceso gestor editorial

Underfeeding versusfull enteral feeding in critically ill patients with acute respiratory failure: a systematic review with meta-analysis of randomized controlled trials

Oellen Stuani Franzosi , Anize Delfino Von Frankenberg , Sergio Henrique Loss , Diego Silva Leite Nunes , Silvia Regina Rios Vieira

Resumen

Introduction: Although guidelines emphasize that the provision of enteral nutrition (EN) should be as close as the patient’s needs, prospective studies question this strategy.Objective: To compare the effect of two EN strategies (underfeeding versus full-feeding) on ICU and overall mortality (hospital mortality or 60-day mortality) and length of stay (LOS), duration of mechanical ventilation (MV), infectious complications, and gastrointestinal tolerance in ICU patients. Methods: Random effects meta-analysis of randomized controlled trials (RCT). Our search covered MEDLINE, EMBASE, SCOPUS and CENTRAL databases until May 2015. Underfeeding was assigned into two different groups according to the level of energy intake achieved (moderate feeding 46-72% and trophic feeding 16-25%) for subgroup analysis. Results: Five RCTs were included among the 904 studies retrieved (n = 2,432 patients). No difference was found in overall mortality when all fi ve studies were combined. In the subgroup analysis, moderate feeding (three studies) showed lower mortality compared with full-feeding (RR 0.82; 95% CI, 0.68-0.98; I2 0% p = 0.59 for heterogeneity). No differences were found for ICU mortality, ICU and hospital LOS, duration of MV, and infectious complications. Underfeeding showed lower occurrence of GI signs and symptoms except for aspiration and abdominal distention (no difference was found). Conclusions: This meta-analysis found no differences in ICU and overall mortality, ICU and hospital LOS, duration of MV, and infectious complications between underfeeding and full-feeding. The subgroup analysis showed lower overall mortality among patients receiving moderate underfeeding. This result should be cautiously interpreted due to the limitations of the small number of studies analyzed and their methodology.

Palabras Clave

Enteral nutrition. Critical care. Mortality. Artificial respiration. Digestive signs and symptoms.


Texto Completo: PDF (ENGLISH)



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