ArticleNutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition2021
Protein requirements for critically ill ventilator-dependent patients with COVID-19.
Article in Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Nitrogen balance and outcomes in critically ill patients: A systematic review and meta-analysis.Frontiers in nutrition · 2022Pooled it
- Energy Expenditure in Critically Ill Obese Patients-A Prospective Observational Study.Nutrients · 2025Observational
- Clinical practice guidelines for nutritional assessment and monitoring of adult ICU patients in China.Journal of intensive medicine · 2024Article
- Association of nitrogen balance trajectories with clinical outcomes in critically ill COVID-19 patients: A retrospective cohort study.Clinical nutrition (Edinburgh, Scotland) · 2022Observational
- Expert consensus on the diagnosis and treatment of severe and critical coronavirus disease 2019 (COVID-19).Journal of intensive medicine · 2022Article
- Protein requirements for critically ill ventilator-dependent patients with COVID-19.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRecent studies indicate critically ill patients with coronavirus disease 2019 (COVID-19) are hypermetabolic; however, protein requirements in critically ill COVID-19 patients are unknown. Our intent was to evaluate the nitrogen accretion response to varying protein intakes for critically ill ventilator-dependent patients with COVID-19.
methodsAdult patients (age ≥ 18 years) with COVID-19, admitted to the intensive care unit (ICU) and who required mechanical ventilation were retrospectively evaluated. Patients received continuous enteral nutrition (EN), including supplemental protein boluses, and had a 24-h urine collection for determination of nitrogen balance (NBAL). Data are expressed as mean ± SD with a P-value < .05 as significant.
resultsTwenty-two patients provided 29 NBAL determinations. Protein intake from EN and protein supplements was 0.9 ± 0.7 g/kg/day at the time of the NBAL with an NBAL of -12.1 ± 10.9 g/day at 7 ± 4 days in the ICU. Combined caloric intake from EN and propofol at the time of the NBAL was 12 ± 8 kcal/kg/day. Nitrogen equilibrium (NBAL of -4 g/day or better) occurred in five patients. Patients achieving nitrogen equilibrium received more protein than those with a negative NBAL (1.2 ± 0.4 g/kg/day vs 0.8 ± 0.8 g/kg/day, P = .046). The linear regression for NBAL in response to graded increases in protein intake was as follows: NBAL = 8.5 × protein intake (g/kg/day) - 18.8 (r = 0.450, P < .001).
conclusionCritically ill ventilator-dependent patients with COVID-19 exhibit significant variability in nitrogen accretion response to increases in protein intake and often have a markedly negative NBAL.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.