Safety and Efficacy of Continuous or Intermittent Enteral Nutrition in ICU Patients: Systematic Review of Clinical Evidence

The best mode of delivering enteral nutrition (EN) in ICU is still debated: several consensus guidelines (ASPEN and ESPEN) suggest that EN in ICU should be preferably delivered continuously rather intermittently but some authors highlight that the first is unphysiological. The aim of this systematic review (SR) is to summarize available clinical evidence related to safety and efficacy of continuous enteral nutrition (C-EN) or intermittent enteral nutrition (I-EN) in ICU patients, in relation to appropriated supply on nutritional status, gastrointestinal symptoms or tolerance, risks on respiratory tract infections. A literature search of Pubmed, EMBASE and Google Scholar was performed comparing C-EN vs I-EN and 4196 published studies were screened. Nineteen studies were selected for this SR reporting types of ICU, nutritional protocols and study period. Effects of C-EN vs I-EN were presented according to the impact on: nutritional status, digestive tract and respiratory tract. The contrasting results confirmed that the optimal delivering mode of EN remains controversial. Future studies dedicated to identify the benefits and limitations of C-EN or I-EN should be realized. This article is protected by copyright. All rights reserved.

Impact of infusion frequency on quality of life in patients receiving home parenteral nutrition

Home parenteral nutrition (HPN) may be needed as a long-term therapy for patients with chronic intestinal failure whose clinical condition does not allow complete weaning of the PN solution. HPN is a time-consuming and clinically complex therapy and can negatively affect quality of life (QOL). The level of dependency on HPN, specifically, infusion frequency has been proposed as a factor that may have an effect on QOL in patients receiving HPN. The primary aim of this qualitative review is to identify the impact of HPN frequency (days per week of HPN infusion) on QOL measurements in adult patients receiving HPN. A comprehensive literature search was completed in PubMed and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases. Primary clinical research studies were included if they were conducted in adult patients receiving HPN and included the assessment of the associations between the frequency of HPN infusion and QOL measurements. Six articles ultimately met the criteria for this review. There was variability among the studies, including use of different tools to measure QOL. However, all six studies suggest that a reduction in HPN frequency may be associated with an improvement in QOL. Whenever patients' clinical situation allows, a reduction in HPN frequency should be considered to improve QOL in patients receiving HPN. This article is protected by copyright. All rights reserved.