Early Administration of Protein in Critically Ill Patients: A Retrospective Cohort Study
Open accessAbstract
It is currently uncertain whether early administration of protein improves patient outcomes. We examined mortality rates of critically ill patients receiving early compared to late protein administration. This was a retrospective cohort study of mixed ICU patients receiving enteral or parenteral nutritional support. Patients receiving >0.7 g/kg/d protein within the first 3 days were considered the early protein group and those receiving less were considered the late protein group. The latter were subdivided into late-low group (LL) who received a low protein intake (<0.7 g/kg/d) throughout their stay and the late-high group (LH) who received higher doses (>0.7 g/kg/d) of protein following their first 3 days of admission. The outcome measure was all-cause mortality 60 days after admission. Of the 2253 patients included in the study, 371 (36%) in the early group, and 517 (43%) in the late-high group had died (p < 0.001 for difference). In multivariable Cox regression analysis, while controlling for confounders, early protein administration was associated with increased survival (HR 0.83, 95% CI 0.71–0.97, p = 0.017). Administration of protein early in the course of critical illness appears to be associated with improved survival in a mixed ICU population, even after adjusting for confounding variables.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
More recent studies in medical ICU patients reported a positive correlation between early or high protein intake and decreased odds of mortality.
“More recent studies in medical ICU patients reported a positive correlation between early [25] or high [26] protein intake and decreased odds of mortality.”
From Nutrition in Sepsis: A Bench-to-Bedside Review. (2020) · cites this paper as [25]
The Conclusions report higher 60-day survival among patients receiving >0.7 g/kg/day of protein in the first three ICU days, supporting the association with early intake. But Methods §2.1 describes a mixed medical-surgical ICU, not a medical-only ICU; the Discussion also cautions that this retrospective result shows association, not causation. Page numbers are unavailable in our copy. (LLM, conf=0.87)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
ESPEN guideline on clinical nutrition in the intensive care unit.
Singer, P., Blaser, A. R., Berger, M. M., Alhazzani, W., Calder, P. C., Casaer, M. P., Hiesmayr, M., Mayer, K., Montejo, J. C., Pichard, C., et al. (2019) · Clinical Nutrition · doi:10.1016/j.clnu.2018.08.037 · Cited by 2,904 · see citing works
Self-citationEarly versus late parenteral nutrition in critically ill adults
Casaer, M. P., Mesotten, D., Hermans, G., Wouters, P. J., Schetz, M., Meyfroidt, G., Van Cromphaut, S., Ingels, C., Meersseman, P., Muller, J., et al. (2011) · New England Journal of Medicine · doi:10.1056/nejmoa1102662 · Cited by 1,696 · cited 1× · see citing works
“In a randomized multicenter trial [27] comparing early with late administration of parenteral nutrition, Casaer et al.”
BackgroundProvision of protein and energy in relation to measured requirements in intensive care patients
Allingstrup, M. J., Esmailzadeh, N., Wilkens Knudsen, A., Espersen, K., Hartvig Jensen, T., Wiis, J., Perner, A., & Kondrup, J. (2012) · Clinical Nutrition · doi:10.1016/j.clnu.2011.12.006 · Cited by 381 · see citing works
Weijs, P. J., Looijaard, W. G., Beishuizen, A., Girbes, A. R., & Oudemans-van Straaten, H. M. (2014) · Critical Care · doi:10.1186/s13054-014-0701-z · Cited by 358 · see citing works
Role of Disease and Macronutrient Dose in the Randomized Controlled EPaNIC Trial
Casaer, M. P., Wilmer, A., Hermans, G., Wouters, P. J., Mesotten, D., & Van den Berghe, G. (2013) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201206-0999oc · Cited by 307 · see citing works
Optimal amount of calories for critically ill patients: Depends on how you slice the cake!*
Heyland, D. K., Cahill, N., & Day, A. G. (2011) · Critical Care Medicine · doi:10.1097/ccm.0b013e318226641d · Cited by 293 · see citing works
Protein Requirements in the Critically Ill: A Randomized Controlled Trial Using Parenteral Nutrition
Ferrie, S., Allman‐Farinelli, M., Daley, M., & Smith, K. (2016) · Journal of Parenteral and Enteral Nutrition · doi:10.1177/0148607115618449 · Cited by 250 · see citing works
Doig, G. S., Simpson, F., Bellomo, R., Heighes, P. T., Sweetman, E. A., Chesher, D., Pollock, C., Davies, A., Botha, J., Harrigan, P., et al. (2015) · Intensive Care Medicine · doi:10.1007/s00134-015-3827-9 · Cited by 232 · see citing works
Rugeles, S., Villarraga-Angulo, L. G., Ariza-Gutiérrez, A., Chaverra-Kornerup, S., Lasalvia, P., & Rosselli, D. (2016) · Journal of Critical Care · doi:10.1016/j.jcrc.2016.05.004 · Cited by 103 · see citing works
Flagged first, then by citations
Research works printed but not linked: 28
- [1]Preiser J.C. Ichai C. Orban J.C. Metabolic response to the stress of critical illness Br. J. Anaesth. 2014 113 945 954 10.1093/bja/aeu187 24970271 · DOI
- [2]Klaude M. Fredriksson K. Tjäder I. Proteasome proteolytic activity in skeletal muscle is increased in patients with sepsis Clin. Sci. 2007 112 499 506 10.1042/CS20060265 17117920 · DOI
- [3]Deem S. Intensive-care-unit-acquired muscle weakness Respir. Care 2006 51 1042 1052 16934167
- [4]Kress J.P. Hall J.B. ICU-acquired weakness and recovery from critical illness N. Engl. J. Med. 2014 370 1626 1635 10.1056/NEJMra1209390 24758618 · DOI
- [5]Caparrós T. Lopez J. Grau T. Early enteral nutrition in critically ill patients with a high-protein diet enriched with arginine, fiber, and antioxidants compared with a standard high-protein diet. The effect on nosocomial infections and outcome J. Parenter. Enter. Nutr. 2001 25 299 308 10.1177/0148607101025006299 11688933 · DOI
- [7]Weijs P.J. Stapel S.N. de Groot S.F. Optimal protein and energy nutrition decreases mortality in mechanically ventilated, critically ill patients: A prospective observational cohort study J. Parenter. Enter. Nutr. 2012 36 60 68 10.1177/0148607111415109 22167076 · DOI · Paper page
- [8]Nicolo M. Heyland D.K. Chittams J. Clinical outcomes related to protein delivery in a critically population: A multicenter, multinational observation study J. Parenter. Enter. Nutr. 2016 40 45 51 10.1177/0148607115583675 25900319 · DOI · Paper page
- [9]Zusman O. Theilla M. Cohen J. Resting energy expenditure, calorie and protein consumption in critically ill patients: A retrospective cohort study Crit. Care 2016 20 367 10.1186/s13054-016-1538-4 27832823 PMC5105237 · DOI · Paper page
- [10]Compher C. Chittams J. Sammarco T. Greater protein and energy intake may be associated with improved mortality in higher risk critically ill patients: A multicenter, multinational observational study Crit. Care Med. 2017 45 156 163 10.1097/CCM.0000000000002083 28098623 · DOI · Paper page
- [11]Elke G. Wang M. Weiler N. Close to recommended caloric and protein intake by enteral nutrition is associated with better clinical outcome of critically ill septic patients: A secondary analysis of a large international nutrition database Crit. Care 2014 18 R29 10.1186/cc13720 24506888 PMC4056527 · DOI
- [12]McClave S.A. Taylor B.E. Martindale R.G. Guidelines for the provision and assessment of nutrition support therapy in the adult critically ill patient: Society of Critical Care Medicine (SCCM) and American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.) J. Parenter. Enter. Nutr. 2016 40 159 211 10.1177/0148607115621863 26773077 · DOI · Paper page
- [15]Singer P. High-dose amino acid infusion preserves diuresis and improves nitrogen balance in non-oliguric acute renal failure Wien. Klin. Wochenschr. 2007 119 218 222 10.1007/s00508-007-0794-3 17492348 · DOI · Paper page
- [16]Scheinkestel C.D. Kar L. Marshall K. Prospective randomized trial to assess caloric and protein needs of critically ill, anuric, ventilated patients requiring continuous renal replacement therapy Nutrition 2003 19 909 916 10.1016/S0899-9007(03)00175-8 14624937 · DOI · Paper page
- [18]Weijs P.J. Dickerson R.N. Heyland D.K. Experimental and outcome-based approaches to protein requirements in the intensive care unit Nutr. Clin. Pract. 2017 32 Suppl. 1 S77 S85 10.1177/0884533617692774 28388371 · DOI
- [19]Allingstrup M.J. Kondrup J. Wiis J. Early goal-directed nutrition versus standard of care in adult intensive care patients: The single-centre, randomized, outcome assessor-blinded EAT-ICU trial Intensive Care Med. 2017 43 1637 1647 10.1007/s00134-017-4880-3 28936712 · DOI · Paper page
- [20]Rhodes A. Evans L.E. Alhazzani W. Surviving sepsis campaign: International guidelines for management of sepsis and septic shock: 2016 Crit. Care Med. 2017 45 186 552 10.1097/CCM.0000000000002255 28098591 · DOI · Paper page
- [22]Lee Z.Y. Barakatun-Nisak M.Y. Noor Airini I. Enhanced protein-energy provision via the enteral route in critically ill patients (PEP uP protocol): A review of evidence Nutr. Clin. Pract. 2016 31 68 79 10.1177/0884533615601638 26385874 · DOI
- [23]Plank L.D. Protein for the critically ill patient—what and when? Eur. J. Clinnutr. 2013 67 565 568 10.1038/ejcn.2013.34 23403870 · DOI
- [26]Koekkoek W.A.C.K. van Setten C.H.C. Olthof L.E. Timing of PROTein Intake and clinical outcomes of adult critically ill patients on prolonged mechanical VENTilation: The PROTEINVENT retrospective study Clin. Nutr. 2018 10.1016/j.clnu.2018.02.012 29486907 · DOI · Paper page
- [28]Davies M.L. Chapple L.S. Chapman M.J. Protein delivery and clinical outcomes in the critically ill: A systematic review and meta-analysis Crit. Care Resusc. 2017 19 117 127 28651507
- [29]Song J.H. Lee H.S. Kim S.Y. The influence of protein provision in the early phase of intensive care on clinical outcomes for critically ill patients on mechanical ventilation Asia Pac. J. Clin. Nutr. 2017 26 234 240 28244700
- [30]Doig G.S. Simpson F. Sweetman E.A. Early parenteral nutrition in critically ill patients with short-term relative contraindications to early enteral nutrition: A randomized controlled trial JAMA 2013 309 2130 2138 10.1001/jama.2013.5124 23689848 · DOI · Paper page
- [31]Yeh D.D. Ortiz-Reyes L.A. Quraishi S.A. Early nutritional inadequacy is associated with longer intensive care unit stay and fewer ventilator-free days: A retrospective analysis of patients with prolonged surgical intensive care unit stay J. Parenter. Enter. Nutr. 2018 42 212 218 29505152
- [32]Zhu R. Allingstrup M.J. Perner A. The effect of IV amino acid supplementation on mortality in ICU patients may be dependent on kidney function: Post hoc subgroup analyses of a multicenter randomized trial Crit. Care Med. 2018 46 1293 1301 10.1097/CCM.0000000000003221 29771700 · DOI
- [33]Singer P. Berger M.M. Weijs P.J.M. The lessons learned from the EAT ICU trial Intensive Care Med. 2018 44 133 134 10.1007/s00134-017-4977-8 29110032 · DOI
- [34]Beale R.J. Sherry T. Lei K. Early enteral supplementation with key pharmaconutrients improves Sequential Organ Failure Assessment score in critically ill patients with sepsis: Outcome of a randomized, controlled, double-blind trial Crit. Care Med. 2008 36 131 144 10.1097/01.CCM.0000297954.45251.A9 18007263 · DOI · Paper page
- [35]Rooyackers O. SundströmRehal M. Liebau F. High protein intake without concerns? Crit. Care 2017 21 106 10.1186/s13054-017-1699-9 28506286 PMC5433053 · DOI
- [36]Van Zanten A.R.H. Petit L. De Waele J. Very high intact-protein formula successfully provides protein intake according to nutritional recommendations in overweight critically ill patients: A double-blind randomized trial Crit. Care 2018 22 156 10.1186/s13054-018-2070-5 29895309 PMC5998555 · DOI
Cited by
Sorted by citations
Nutrition in Sepsis: A Bench-to-Bedside Review.
De Waele, E., Malbrain, M. L. N. G., & Spapen, H. (2020) · Nutrients · doi:10.3390/nu12020395 · Cited by 140 · see citing works
Feeding should be individualized in the critically ill patients
Berger, M. M., & Pichard, C. (2019) · Current Opinion in Critical Care · doi:10.1097/mcc.0000000000000625 · Cited by 37 · see citing works
- Authors
- Bendavid, I., Zusman, O., Kagan, I., Theilla, M., Cohen, J., & Singer, P.
- Affiliations
- Tel Aviv University (IL)
- Corresponding author
- Bendavid, Itai
- Venue
- Nutrients
- Publisher
- MDPI AG
- Published
- 2019-01-07
- Volume
- 11
- Issue
- 1
- Pages
- 106
- ISSN
- 2072-6643 (ISSN-L)
- PMC
- PMC6356518
- OpenAlex
- W2907755131
- Cited by
- 73
- References
- 9
- Citations by year
- 2026: 1 · 2025: 8 · 2024: 15 · 2023: 11 · 2022: 14 · 2021: 7 · 2020: 8 · 2019: 8 · 2018: 1
- FWCI
- 7.04
- Type
- journal article
- Language
- en
- Open access
- gold
- dx.doi.org
- Licence
- Locations
- Nutrients (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
- Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hyperglycemia and glycemic control in critically ill and hospitalized patients
- Keywords
- critically ill patients, protein intake, enteral nutrition, parenteral nutrition, all-cause mortality, intensive care unit, nutritional support
- MeSH terms
- Adult, Aged, Energy Intake, Calorimetry, Indirect, Critical Care, Female, Hospitals, University, Humans, Male, Middle Aged, Nutritional Requirements, Parenteral Nutrition, Proteins, Retrospective Studies, Time Factors, Cohort Studies, Critical Illness, Treatment Outcome, Nutritional Support
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review