ABSTRACT
BACKGROUND: Patients requiring enteral nutrition (EN) after neurological insults experience feeding interruptions, contributing to inadequate nutrition delivery. This prospective cohort study investigated if volume-based enteral feeding (VBF) improved the delivery of prescribed EN volume in ward patients with acute neurological conditions. METHODS: Over two sequential periods, the usual care group received standard continuous rate-based feeding, and the intervention group received VBF with bi-daily EN rate adjustments to achieve target daily volume. The primary outcome was percentage of prescribed daily EN formula volume delivered. Differences in energy and protein provision, weight, malnutrition and safety were explored. An evaluation survey captured nurse acceptability of the protocol. RESULTS: The intervention group (n = 32) achieved greater median interquartile range (IQR) EN adequacy of prescribed volume at 92% (88-97) compared to 67% (54-78) for usual care (n = 35) (p < 0.001). VBF compared to rate-based feeding resulted in patients receiving more kilojoules (131 [121-138] kJ/kg vs. 84 [64-99] kJ/kg; p < 0.001) and protein (1.3 [1.2-1.5] g/kg vs. 0.9 [0.6-1.1] g/kg; p < 0.001). There were no differences in gastrointestinal intolerance between groups. Compliance to the VBF protocol was 90%, and 78% of staff reported high confidence using the protocol. The intervention group had less median weight loss at discharge (-1.4 [0.1 to -4.3] kg) than usual care (-3.6 [-1.3 to 8.4] kg; p < 0.011), but no differences in malnutrition status were observed. CONCLUSION: A VBF protocol delivered greater EN volume, energy and protein following neurological injury. The VBF protocol was feasible with high acceptability from nursing staff.
ABSTRACT
BACKGROUND: There is limited understanding of fasting practices and reported safety concerns for airway procedures in critically ill adults. OBJECTIVE: To describe fasting practices including safety concerns for airway procedures in critically ill adult patients in the reported literature. INCLUSION CRITERIA: Studies conducted in adult critically ill patients receiving enteral nutrition (EN) and undergoing an airway procedure (endotracheal intubation, endotracheal extubation, and tracheostomy) were included if EN fasting practices and/or prespecified nutrition and clinical outcomes were reported. METHODS: A scoping review using the Joanna Briggs Institute methodology was conducted. MEDLINE, Embase, and CINAHL were searched from 2000 to January 19, 2022. Results are presented via narrative synthesis. RESULTS: Fourteen studies were included, with only one randomised control trial (RCT). Twelve studies reported on fasting practices with varied EN fasting durations (0-34 h) and two reported data on nutrition adequacy. Three studies investigated continued EN in one study arm and four studies minimised fasting duration by including gastric suctioning prior to the airway procedure. Safety concerns primarily related to aspiration events (61%) were reported in nine studies. CONCLUSION: In the reported literature, there is wide variation in EN fasting practices for airway procedures in critically ill patients with limited evidence to inform practice.
