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ApSimon M, Johnston C, Winder B, Cohen SS, Hopkins B. Narrowing the Protein Deficit Gap in Critically Ill Patients Using a Very High-Protein Enteral Formula. Nutr Clin Pract 2020; 35:533-539. [PMID: 32083356 DOI: 10.1002/ncp.10472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Protein deficits have been associated with longer intensive care unit (ICU) stays and increased mortality. Current view suggests if protein goals are met, meeting full energy targets may be less important and prevent deleterious effects of overfeeding. We proposed a very-high protein (VHP) enteral nutrition (EN) formula could provide adequate protein, without overfeeding energy, in the first week of critical illness. METHODS This was a retrospective study of medical/surgical ICU patients receiving EN exclusively for ≥5 days during the first week of ICU admission. Twenty participants received standard EN; 20 participants received the VHP-EN formula (1 kcal/mL, 37% protein). Protein and energy prescribed/received, gastrointestinal tolerance, and feeding interruptions were examined. RESULTS Forty ICU patients [average Acute Physiology and Chronic Health Evaluation II score of 20.1] were included. Protein prescribed and received was significantly higher in the VHP group vs the standard EN group (135.5 g/d ± 22.9 vs 111.4 g/d ± 25; P = .003 and 112.2 g/d ± 27.8 vs 81.7 g/d ± 16.7, respectively; P = .002). Energy prescribed and received was similar between groups (1696 kcal/d ± 402 vs 1893 kcal/d ± 341, respectively; P = .101 and 1520 kcal/d ± 346 vs 1506 ± 380 kcal/d; P = .901). There were no differences in EN tolerance (P = .065) or feeding interruptions (P = .336). CONCLUSIONS Use of a VHP formula in ICU patients resulted in higher protein intakes without overfeeding energy or use of modular protein in the first 5 days of exclusive EN.
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Affiliation(s)
- Michele ApSimon
- Hamilton Health Sciences, Department of Critical Care, Hamilton General Hospital Site, Hamilton, Ontario, Canada
| | - Carrie Johnston
- Hamilton Health Sciences, Department of Critical Care, Hamilton General Hospital Site, Hamilton, Ontario, Canada
| | - Barb Winder
- Hamilton Health Sciences, Department of Critical Care, Hamilton General Hospital Site, Hamilton, Ontario, Canada
| | | | - Bethany Hopkins
- Medical Affairs, Nestlé Health Science Canada, North York, Ontario, Canada
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Fetterplace K, Gill BMT, Chapple LAS, Presneill JJ, MacIsaac C, Deane AM. Systematic Review With Meta-Analysis of Patient-Centered Outcomes, Comparing International Guideline-Recommended Enteral Protein Delivery With Usual Care. JPEN J Parenter Enteral Nutr 2019; 44:610-620. [PMID: 31617220 DOI: 10.1002/jpen.1725] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 09/04/2019] [Accepted: 09/18/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND International guidelines recommend that protein be administered enterally to critically ill patients at doses between 1.2 and 2 g/kg per day Observational data indicate that patients frequently receive less protein. The aim of this systematic review was to evaluate patient-centered outcomes with guideline-recommended enteral protein compared with usual care. METHODS A systematic review was performed of randomized controlled trials including critically ill adult patients provided predominately enteral nutrition with mean protein at ≥1.2 g/kg per day (intervention) and <1.2 g/kg per day (comparator). Random-effects models were applied for outcomes reported in ≥3 trials. RESULTS Of 1375 abstracts, 69 full-text articles were reviewed, and 6 trials meet the inclusion criteria, including 511 patients. The intervention group received a mean (SD) of 1.3 (0.08) g/kg per day, and the comparator group received 0.75 (0.15) g/kg per day protein. Insufficient data were available for meta-analyses on the primary outcome (muscle mass or strength). According to our meta-analyses, mortality at 28 days (5 studies) (risk ratio 0.92 [95% Cl 0.63-1.35], P = .66) and the durations of intensive care unit (6 studies) and hospital admission (4 studies) were similar between the intervention and comparator, with some uncertainty due to sample sizes and heterogeneity. CONCLUSION There are insufficient data to conclude whether protein provision within the current international guideline recommendations improves outcomes. In a limited dataset, enteral protein intakes near the lower level of current recommendations do not appear to reduce admission duration or mortality when compared with usual care in critically ill.
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Affiliation(s)
- Kate Fetterplace
- Allied Health (Clinical Nutrition), Royal Melbourne Hospital, Melbourne, Australia.,Department of Medicine, The University of Melbourne, Parkville, Australia
| | - Benjamin M T Gill
- Allied Health (Clinical Nutrition), Royal Melbourne Hospital, Melbourne, Australia
| | - Lee-Anne S Chapple
- Discipline of Acute Care Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia.,Intensive Care Research, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Jeffrey J Presneill
- Department of Medicine, The University of Melbourne, Parkville, Australia.,Intensive Care Unit, Royal Melbourne Hospital, Parkville, Australia
| | - Christopher MacIsaac
- Department of Medicine, The University of Melbourne, Parkville, Australia.,Intensive Care Unit, Royal Melbourne Hospital, Parkville, Australia
| | - Adam M Deane
- Department of Medicine, The University of Melbourne, Parkville, Australia.,Intensive Care Unit, Royal Melbourne Hospital, Parkville, Australia
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Javid Mishamandani Z, Norouzy A, Hashemian SM, Khoundabi B, Rezaeisadrabadi M, Safarian M, Nematy M, Pournik O, Jamialahmadi T, Shadnoush M, Moghaddam OM, Zand F, Beigmohammadi MT, Khoshfetrat M, Shafiei E, Sedaghat A. Nutritional status of patients hospitalized in the intensive care unit: A comprehensive report from Iranian hospitals, 2018. J Crit Care 2019; 54:151-158. [PMID: 31446233 DOI: 10.1016/j.jcrc.2019.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 06/08/2019] [Accepted: 08/01/2019] [Indexed: 12/15/2022]
Abstract
INTRODUCTION AND AIM Malnutrition is a complication of hospitalization in critically ill patients. This event is occurred because of disease and therapeutic processes for curing the patients. Determination of nutritional status helps physicians and clinical nutritionists decide on the best regimen which should be prescribed for a patient. In the current study, we aimed to report the nutritional status ofpatientshospitalizedin the intensive care unit (ICU). METHOD OF STUDY We used three standard tolls, including Subjective global assessment (SGA), Nutrition Risk in the Critically Ill (NUTRIC) Score and nutrition risk screening (NRS) questionnaires via a multi-stage sampling for different ICU wards of 32 university hospitals in Iran. Frequencies and rates of nutritional scores, comparative studies, and determined agreement of scoring systems and nutritional status in any ward of hospitals were evaluated. RESULTS There were 771 males and 540 female Cancer and trauma patients had the best and worst nutritional scores, respectively. Using NRS and NUTRIC, the low-risk scores were more frequent than thehigh-riskscores among ICU patients. SGA showed that most patients were in grades A (well nutritional status) or B (moderate nutritional status), andfew caseswere in grade C (poor nutritional status).The high-risk nutritional score wasobtained for older patients. NUTRIC and NRS had better agreement for diagnosis and differentiation of malnutrition than NUTRIC-SGA or NRS-SGA pairs. However, there was no strong agreement between the mentioned pairs. CONCLUSION Nutritional status of patients hospitalized in ICU wards in Iran wassomewhat better than other countries that this could be due to the highly observed guidelines of patient's care in Iran. Anyway,it is suggested that a more precise tool of nutritional scoresto be validated for patients hospitalized in ICU·In addition, better medical care needs a well evaluation of nutritional insufficiencies and what is necessary for compensation using complementary regimens.
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Affiliation(s)
- Zeinab Javid Mishamandani
- Student Research Committee, Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdolreza Norouzy
- Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammadreza Hashemian
- Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Batoul Khoundabi
- Iran Helal Institute of Applied-Science and Technology (Red Crescent Society of Iran), Tehran, Iran
| | - Mohammad Rezaeisadrabadi
- Internal Medicine Department, Student Research Committee, Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Mohammad Safarian
- Biochemistry and Nutrition Department, Mashhad University of Medical Science, Mashhad, Iran
| | - Mohsen Nematy
- Biochemistry and Nutrition Department, Mashhad University of Medical Science, Mashhad, Iran
| | - Omid Pournik
- Department of Community Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Preventive Medicine and Public Health Research Center, Psychosocial Health Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Tannaz Jamialahmadi
- Student Research Committee, Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdi Shadnoush
- Semnan University of Medical Sciences, Semnan, Iran; Department of Clinical Nutrition, Faculty of Nutrition & Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Omid Moradi Moghaddam
- Trauma and Injury Research Center, Critical Care Department, Rasoul-e-Akram Complex Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Farid Zand
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Taghi Beigmohammadi
- Department of Anesthesiology and Intensive Care, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoum Khoshfetrat
- Anesthesiology and Critical Care, Khatamolanbia Hospital, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Elham Shafiei
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Sedaghat
- Faculty of Critical Care Medicine, Lung Disease Research Center, Mashhad university of Medical Sciences, Mashhad, Iran
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Sundström-Rehal M, Tardif N, Rooyackers O. Can exercise and nutrition stimulate muscle protein gain in the ICU patient? Curr Opin Clin Nutr Metab Care 2019; 22:146-151. [PMID: 30585804 DOI: 10.1097/mco.0000000000000548] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The intended purpose of nutritional and exercise interventions during ICU stay is often to limit the muscle loss associated with critical illness. Unfortunately, direct measurements of muscle protein turnover or potential surrogates have often been neglected in clinical trials. RECENT FINDINGS We discuss the potential advantages and drawbacks of common outcome measures for assessing changes in muscle structure and function over time, and how temporal changes in patient physiology require consideration. There is an increasing awareness of emphasizing functional outcomes in recent clinical trials. We here summarize the latest research on therapies attempting to limit muscle loss in ICU patients, with a focus on muscle protein metabolism. No recent or older studies show any effect of nutritional interventions on muscle protein gain, although some smaller studies show a promising positive effect on muscle thickness and function. Some studies show a positive effect of increased physical activity in the ICU on muscle mass and function but heterogeneity of the interventions and outcome measures make any general conclusions impossible. SUMMARY Several knowledge gaps remain regarding the importance of muscle protein regulation as a driver of improved physical function following ICU discharge. In our opinion, physiological investigations are needed to guide the design and interpretation of future clinical trials.
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Affiliation(s)
- Martin Sundström-Rehal
- Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Nicolas Tardif
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Olav Rooyackers
- Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
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Sharma K, Mogensen KM, Robinson MK. Pathophysiology of Critical Illness and Role of Nutrition. Nutr Clin Pract 2018; 34:12-22. [DOI: 10.1002/ncp.10232] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Kavita Sharma
- Department of Surgery; Brigham and Women's Hospital; Harvard Medical School; Boston Massachusetts USA
| | - Kris M. Mogensen
- Department of Nutrition; Brigham and Women's Hospital; Boston Massachusetts USA
| | - Malcolm K. Robinson
- Department of Surgery; Brigham and Women's Hospital; Harvard Medical School; Boston Massachusetts USA
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6
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Wesselink E, Koekkoek WAC, Grefte S, Witkamp RF, van Zanten ARH. Feeding mitochondria: Potential role of nutritional components to improve critical illness convalescence. Clin Nutr 2018; 38:982-995. [PMID: 30201141 DOI: 10.1016/j.clnu.2018.08.032] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 08/03/2018] [Accepted: 08/25/2018] [Indexed: 12/30/2022]
Abstract
Persistent physical impairment is frequently encountered after critical illness. Recent data point towards mitochondrial dysfunction as an important determinant of this phenomenon. This narrative review provides a comprehensive overview of the present knowledge of mitochondrial function during and after critical illness and the role and potential therapeutic applications of specific micronutrients to restore mitochondrial function. Increased lactate levels and decreased mitochondrial ATP-production are common findings during critical illness and considered to be associated with decreased activity of muscle mitochondrial complexes in the electron transfer system. Adequate nutrient levels are essential for mitochondrial function as several specific micronutrients play crucial roles in energy metabolism and ATP-production. We have addressed the role of B vitamins, ascorbic acid, α-tocopherol, selenium, zinc, coenzyme Q10, caffeine, melatonin, carnitine, nitrate, lipoic acid and taurine in mitochondrial function. B vitamins and lipoic acid are essential in the tricarboxylic acid cycle, while selenium, α-tocopherol, Coenzyme Q10, caffeine, and melatonin are suggested to boost the electron transfer system function. Carnitine is essential for fatty acid beta-oxidation. Selenium is involved in mitochondrial biogenesis. Notwithstanding the documented importance of several nutritional components for optimal mitochondrial function, at present, there are no studies providing directions for optimal requirements during or after critical illness although deficiencies of these specific micronutrients involved in mitochondrial metabolism are common. Considering the interplay between these specific micronutrients, future research should pay more attention to their combined supply to provide guidance for use in clinical practise. REVISION NUMBER: YCLNU-D-17-01092R2.
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Affiliation(s)
- E Wesselink
- Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
| | - W A C Koekkoek
- Department of Intensive Care Medicine, Gelderse Vallei Hospital, Willy Brandtlaan 10, 6716, Ede, The Netherlands.
| | - S Grefte
- Human and Animal Physiology, Wageningen University, De Elst 1, 6708 DW, Wageningen, The Netherlands.
| | - R F Witkamp
- Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
| | - A R H van Zanten
- Department of Intensive Care Medicine, Gelderse Vallei Hospital, Willy Brandtlaan 10, 6716, Ede, The Netherlands.
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7
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Fetterplace K, Deane AM, Tierney A, Beach LJ, Knight LD, Presneill J, Rechnitzer T, Forsyth A, Gill BMT, Mourtzakis M, MacIsaac C. Targeted Full Energy and Protein Delivery in Critically Ill Patients: A Pilot Randomized Controlled Trial (FEED Trial). JPEN J Parenter Enteral Nutr 2018; 42:1252-1262. [DOI: 10.1002/jpen.1166] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/27/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Kate Fetterplace
- Allied Health (Clinical Nutrition); Royal Melbourne Hospital; Melbourne Australia
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health; La Trobe University; Melbourne Australia
- Department of Medicine; The University of Melbourne; Melbourne Australia
| | - Adam M. Deane
- Department of Medicine; The University of Melbourne; Melbourne Australia
- Department of Intensive Care Medicine; Royal Melbourne Hospital; Melbourne Australia
| | - Audrey Tierney
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health; La Trobe University; Melbourne Australia
- Department of Clinical Therapies; University of Limerick; Limerick Ireland
| | - Lisa J. Beach
- Allied Health (Physiotherapy), Royal Melbourne Hospital; Melbourne Australia
| | - Laura D. Knight
- Allied Health (Physiotherapy), Royal Melbourne Hospital; Melbourne Australia
| | - Jeffrey Presneill
- Department of Medicine; The University of Melbourne; Melbourne Australia
- Department of Intensive Care Medicine; Royal Melbourne Hospital; Melbourne Australia
| | - Thomas Rechnitzer
- Department of Intensive Care Medicine; Royal Melbourne Hospital; Melbourne Australia
| | - Adrienne Forsyth
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health; La Trobe University; Melbourne Australia
| | - Benjamin M. T. Gill
- Allied Health (Clinical Nutrition); Royal Melbourne Hospital; Melbourne Australia
- Department of Medicine; The University of Melbourne; Melbourne Australia
| | - Marina Mourtzakis
- Department of Kinesiology, Faculty of Applied Health Sciences; University of Waterloo; Waterloo Ontario Canada
| | - Christopher MacIsaac
- Department of Medicine; The University of Melbourne; Melbourne Australia
- Department of Intensive Care Medicine; Royal Melbourne Hospital; Melbourne Australia
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8
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Mogensen KM, Horkan CM, Purtle SW, Moromizato T, Rawn JD, Robinson MK, Christopher KB. Malnutrition, Critical Illness Survivors, and Postdischarge Outcomes: A Cohort Study. JPEN J Parenter Enteral Nutr 2017; 42:557-565. [PMID: 28521598 DOI: 10.1177/0148607117709766] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 04/10/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND We hypothesized that preexisting malnutrition in patients who survived critical care would be associated with adverse outcomes following hospital discharge. METHODS We performed an observational cohort study in 1 academic medical center in Boston. We studied 23,575 patients, aged ≥18 years, who received critical care between 2004 and 2011 and survived hospitalization. RESULTS The exposure of interest was malnutrition determined at intensive care unit (ICU) admission by a registered dietitian using clinical judgment and on data related to unintentional weight loss, inadequate nutrient intake, and wasting of muscle mass and/or subcutaneous fat. The primary outcome was 90-day postdischarge mortality. Secondary outcome was unplanned 30-day hospital readmission. Adjusted odds ratios were estimated by logistic regression models adjusted for age, race, sex, Deyo-Charlson Index, surgical ICU, sepsis, and acute organ failure. In the cohort, the absolute risk of 90-day postdischarge mortality was 5.9%, 11.7%, 15.8%, and 21.9% in patients without malnutrition, those at risk of malnutrition, nonspecific malnutrition, and protein-energy malnutrition, respectively. The odds of 90-day postdischarge mortality in patients at risk of malnutrition, nonspecific malnutrition, and protein-energy malnutrition fully adjusted were 1.77 (95% confidence interval [CI], 1.23-2.54), 2.51 (95% CI, 1.36-4.62), and 3.72 (95% CI, 2.16-6.39), respectively, relative to patients without malnutrition. Furthermore, the presence of malnutrition is a significant predictor of the odds of unplanned 30-day hospital readmission. CONCLUSIONS In patients treated with critical care who survive hospitalization, preexisting malnutrition is a robust predictor of subsequent mortality and unplanned hospital readmission.
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Affiliation(s)
- Kris M Mogensen
- Department of Nutrition, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Clare M Horkan
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Steven W Purtle
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Boulder, Colorado, USA
| | - Takuhiro Moromizato
- Renal and Rheumatology Division, Internal Medicine Department, Okinawa Southern Medical Center and Children's Hospital, Naha, Japan
| | - James D Rawn
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Malcolm K Robinson
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Kenneth B Christopher
- The Nathan E. Hellman Memorial Laboratory, Renal Division, Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Patel JJ, Martindale RG, McClave SA. Controversies Surrounding Critical Care Nutrition: An Appraisal of Permissive Underfeeding, Protein, and Outcomes. JPEN J Parenter Enteral Nutr 2017; 42:508-515. [PMID: 28742432 DOI: 10.1177/0148607117721908] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 06/30/2017] [Indexed: 01/15/2023]
Abstract
Over the past few years, numerous studies have called into question the optimal dose, timing, composition, and advancement rate of nutrition during the early acute phase of critical illness. These studies suggest permissive underfeeding with slow advancement may be more beneficial than aggressive full feeding. These counterintuitive results were possibly explained by enhanced autophagy, less hyperglycemia, or prevention of refeeding syndrome. This review underscores the controversies surrounding permissive underfeeding, aims to answer whether permissive underfeeding is appropriate for all critically ill patients, describes the impact of optimal protein delivery on critical care outcomes, discusses nutrition risk, and cogitates on the impact of nutrition on critical care outcomes.
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Affiliation(s)
- Jayshil J Patel
- Division of Pulmonary & Critical Care Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Robert G Martindale
- Division of General Surgery, Oregon Health Sciences University, Portland, Oregon, USA
| | - Stephen A McClave
- Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville, Louisville, Kentucky, USA
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10
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Hoffer LJ. Parenteral Nutrition: Amino Acids. Nutrients 2017; 9:nu9030257. [PMID: 28287411 PMCID: PMC5372920 DOI: 10.3390/nu9030257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 02/24/2017] [Accepted: 03/02/2017] [Indexed: 02/07/2023] Open
Abstract
There is growing interest in nutrition therapies that deliver a generous amount of protein, but not a toxic amount of energy, to protein-catabolic critically ill patients. Parenteral amino acids can achieve this goal. This article summarizes the biochemical and nutritional principles that guide parenteral amino acid therapy, explains how parenteral amino acid solutions are formulated, and compares the advantages and disadvantages of different parenteral amino acid products with enterally-delivered whole protein products in the context of protein-catabolic critical illness.
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