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Wang Y, Li Y, Li Y, Li H, Zhang D. Enteral feeding strategies in patients with acute gastrointestinal injury: From limited to progressive to open feeding. Nutrition 2024; 117:112255. [PMID: 37897987 DOI: 10.1016/j.nut.2023.112255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/21/2023] [Accepted: 09/29/2023] [Indexed: 10/30/2023]
Abstract
Acute gastrointestinal injury (AGI) is very common in critically ill patients, and its severity is positively correlated with mortality. Critically ill patients with digestive and absorption dysfunction caused by AGI face higher nutritional risks, making nutritional support particularly important. Early enteral nutrition (EN) support is extremely important because it can promote the recovery of intestinal function, protect the intestinal mucosal barrier, reduce microbiota translocation, reduce postoperative complications, shorten hospital stay, and improve clinical prognosis. In recent years, many nutritional guidelines have been proposed for critically ill patients; however, there are few recommendations for the implementation of EN in patients with AGI, and their quality of evidence is low. The use of EN feeding strategies in critically ill patients with AGI remains controversial. The aim of this review was to elaborate on how EN feeding strategies should transition from limited to progressive to open feeding and explain the time window for this transition.
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Affiliation(s)
- Youquan Wang
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China.
| | - Yanhua Li
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China.
| | - Yuting Li
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China.
| | - Hongxiang Li
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China.
| | - Dong Zhang
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China.
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Pelizzari L, Antoniono E, Giraudo D, Ciardi G, Lamberti G. Fecal Incontinence after Severe Brain Injury: A Barrier to Discharge after Inpatient Rehabilitation? Neurol Int 2023; 15:1339-1351. [PMID: 37987457 PMCID: PMC10660697 DOI: 10.3390/neurolint15040084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND In this study, we aimed to investigate the incidence of fecal incontinence (FI) after severe acquired brain injuries (sABIs) and to determine whether this symptom can lead to an inability to return home after rehabilitation. METHODS This was a retrospective observational cohort study. In total, 521 acute sABI inpatients were enrolled from the Department of Neurorehabilitation at an academic tertiary care hospital. Patients were divided into two groups, with and without FI, at the end of the rehabilitation phase. The primary and secondary endpoints were the incidence of persistent FI and any difference in the discharge destination. RESULTS Upon admission, new-onset FI was found in 443 (85%) patients, of which 38% had traumatic sABI. Moreover, 62.7% of all patients had FI upon admission. At discharge, 53.3% (264/495) of patients still had FI. Of these, 75.4% (199/264) had a Rancho Level of Cognitive Functioning Scale (LCFS) ≥3. A statistically significant correlation between FI at discharge and the presence of frontal lesions, autonomic crises, and increased LCFS scores was noted. Among the patients discharged to their homes, the proportion with persistent FI was lower (34% vs. 53.3). CONCLUSIONS FI was significantly persistent after sABI, even after recovery from unconsciousness, and must be considered as a consequence of, rather than an independent risk factor for, unfavorable outcomes.
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Affiliation(s)
- Laura Pelizzari
- Department of Rehabilitative Medicine, AUSL Piacenza, 29017 Fiorenzuola d’Arda, PC, Italy; (L.P.); (G.C.)
| | - Elena Antoniono
- Neurorehabilitation Unit, AUSL CN1, 12045 Fossano, CN, Italy;
| | - Donatella Giraudo
- Department of Urology, IRCCS San Raffaele Scientific Institute, 20127 Milano, MI, Italy;
| | - Gianluca Ciardi
- Department of Rehabilitative Medicine, AUSL Piacenza, 29017 Fiorenzuola d’Arda, PC, Italy; (L.P.); (G.C.)
| | - Gianfranco Lamberti
- Department of Rehabilitative Medicine, AUSL Piacenza, 29017 Fiorenzuola d’Arda, PC, Italy; (L.P.); (G.C.)
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Christensen M, Liang M. Critical care: A concept analysis. Int J Nurs Sci 2023; 10:403-413. [PMID: 37545780 PMCID: PMC10401358 DOI: 10.1016/j.ijnss.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/08/2023] [Accepted: 06/24/2023] [Indexed: 08/08/2023] Open
Abstract
Objective The terms critical care and the Intensive Care Unit (ICU) are often used interchangeably to describe a place of care. Defining critical care becomes challenging because of the colloquial use of the term. Using concept analysis allows for the development of definition and meaning. The aim of this concept analysis is to distinguish the use of the term critical care to develop an operational definition which describes what constitutes critical care. Method Walker and Avant's eight-step approach to concept analysis guided this study. Five databases (CINAHL, Scopus, PubMed, ProQuest Dissertation Abstracts and Medline in EBSCO) were searched for studies related to critical care. The search included both qualitative and quantitative studies written in English and published between 1990 and 2022. Results Of the 439 papers retrieved, 47 met the inclusion criteria. The defining attributes of critical care included 1) a maladaptive response to illness/injury, 2) admission modelling criteria, 3) advanced medical technologies, and 4) specialised health professionals. Antecedents were associated with illness/injury that progressed to a level of criticality with a significant decline in both physical and psychological functioning. Consequences were identified as either death or survival with/without experiencing post-ICU syndrome. Conclusion Describing critical care is often challenging because of the highly technical nature of the environment. This conceptual understanding and operational definition will inform future research as to the scope of critical care and allow for the design of robust evaluative instruments to better understand the nature of care in the intensive care environment.
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Affiliation(s)
- Martin Christensen
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
- The Interdisciplinary Centre for Qualitative Research, The Hong Kong Polytechnic University, Hong Kong, China
| | - Mining Liang
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
- The Interdisciplinary Centre for Qualitative Research, The Hong Kong Polytechnic University, Hong Kong, China
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Mohamed Elfadil O, Shah RN, Hurt RT, Mundi MS. Peptide-based formula: Clinical applications and benefits. Nutr Clin Pract 2023; 38:318-328. [PMID: 36802281 DOI: 10.1002/ncp.10961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/08/2023] [Accepted: 01/15/2023] [Indexed: 02/23/2023] Open
Abstract
The use of enteral nutrition (EN) continues to increase given benefits. However, with this increase in use, it is also becoming evident that enteral feeding intolerance (EFI) is also quite prevalent, leading to the inability to meet nutrition needs in many patients. Given the wide variability in the EN population as well as the number of formulas available, there is not a clear consensus regarding the best approach to EFI management. One approach that is emerging to improve EN tolerance is the use of peptide-based formulas (PBFs). PBFs refer to enteral formulas containing proteins that have been enzymatically hydrolyzed to dipeptides and tripeptides. These hydrolyzed proteins are often combined with higher medium-chain triglyceride content to generate an enteral formula that is essentially easier to absorb and utilize. Emerging data demonstrate that the use of PBF in patients with EFI may improve clinical outcomes along with a corresponding reduction in healthcare utilization and potentially the cost of care. This review aims to navigate through key clinical applications and benefits of PBF and to discuss relevant data shared in the literature.
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Affiliation(s)
- Osman Mohamed Elfadil
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | - Raj N Shah
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | - Ryan T Hurt
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA.,Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Manpreet S Mundi
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
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Al-Yousif N, Rawal S, Jurczak M, Mahmud H, Shah FA. Endogenous Glucose Production in Critical Illness. Nutr Clin Pract 2021; 36:344-359. [PMID: 33682953 DOI: 10.1002/ncp.10646] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Regulation of endogenous glucose production (EGP) by hormonal, neuronal, and metabolic signaling pathways contributes to the maintenance of euglycemia under normal physiologic conditions. EGP is defined by the generation of glucose from substrates through glycogenolysis and gluconeogenesis, usually in fasted states, for local and systemic use. Abnormal increases in EGP are noted in patients with diabetes mellitus type 2, and elevated EGP may also impact the pathogenesis of nonalcoholic fatty liver disease and congestive heart failure. In this narrative review, we performed a literature search in PubMed to identify recently published English language articles characterizing EGP in critical illness. Evidence from preclinical and clinical studies demonstrates that critical illness can disrupt EGP through multiple mechanisms including increased systemic inflammation, counterregulatory hormone and catecholamine release, alterations in the hypothalamic-pituitary axis, insulin resistance, lactic acidosis, and iatrogenic insults such as vasopressors and glucocorticoids administered as part of clinical care. EGP contributes to hyperglycemia in critical illness when abnormally elevated and to hypoglycemia when abnormally depressed, each of which has been independently associated with increased mortality. Increased EGP may also promote protein catabolism that could worsen critical illness myopathy and impede recovery. Better understanding of the mechanisms and factors contributing to dysregulated EGP in critical illness may help in the development of therapeutic strategies that promote euglycemia, reduce intensive care unit-associated catabolism, and improve patient outcomes.
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Affiliation(s)
- Nameer Al-Yousif
- Department of Internal Medicine, UPMC Mercy Hospital, Pittsburgh, Pennsylvania, USA
| | - Sagar Rawal
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael Jurczak
- Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hussain Mahmud
- Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Faraaz Ali Shah
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania, USA
- Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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[S3 Guideline Sepsis-prevention, diagnosis, therapy, and aftercare : Long version]. Med Klin Intensivmed Notfmed 2021; 115:37-109. [PMID: 32356041 DOI: 10.1007/s00063-020-00685-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Jouancastay M, Guillot C, Machuron F, Duhamel A, Baudelet JB, Leteurtre S, Recher M. Are Nutritional Guidelines Followed in the Pediatric Intensive Care Unit? Front Pediatr 2021; 9:648867. [PMID: 34164356 PMCID: PMC8215211 DOI: 10.3389/fped.2021.648867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 04/19/2021] [Indexed: 11/30/2022] Open
Abstract
Background: French (2014) and American (2017) pediatric guidelines recommend starting enteral nutrition (EN) early in pediatric intensive care. The aims of this study were to compare the applicability of the guidelines in the pediatric intensive care unit (PICU) and to identify risk factors of non-application of the guidelines. Methods: This retrospective, single-center study was conducted in a medical-surgical PICU between 2014 and 2016. All patients from 1 month to 18 years old with a length of stay >48 h and an exclusive EN at least 1 day during the PICU stay were included. The outcome variable was application of the 2014 and 2017 guidelines, defined by energy intakes ≥90% of the recommended intake at least 1 day as defined by both guidelines. The risk factors of non-application were studied comparing "optimal EN" vs. "non-optimal EN" groups for both guidelines. Results: In total, 416 children were included (mortality rate, 8%). Malnutrition occurred in 36% of cases. The mean energy intake was 34 ± 30.3 kcal kg-1 day-1. The 2014 and 2017 guidelines were applied in 183 (44%) and 296 (71%) patients, respectively (p < 0.05). Following the 2017 guidelines, enteral energy intakes were considered as "satisfactory enteral intake" for 335 patients (81%). Hemodynamic failure was a risk factor of the non-application of both guidelines. Conclusion: In our PICU, the received energy intake approached the level of intake recommended by the American 2017 guidelines, which used the predictive Schofield equations and seem more useful and applicable than the higher recommendations of the 2014 guidelines. Multicenter studies to validate the pediatric guidelines seem necessary.
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Affiliation(s)
| | | | - François Machuron
- Department of Methodology, Biostatistics, and Management, CHU Lille, Lille, France
| | - Alain Duhamel
- Department of Methodology, Biostatistics, and Management, CHU Lille, Lille, France.,ULR 2694 - METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Univ. Lille, CHU Lille, Lille, France
| | | | - Stéphane Leteurtre
- Pediatric Intensive Care Unit, CHU Lille, Lille, France.,ULR 2694 - METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Univ. Lille, CHU Lille, Lille, France
| | - Morgan Recher
- Pediatric Intensive Care Unit, CHU Lille, Lille, France.,ULR 2694 - METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Univ. Lille, CHU Lille, Lille, France
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Singer P, Pichard C, Rattanachaiwong S. Evaluating the TARGET and EAT-ICU trials: how important are accurate caloric goals? Point-counterpoint: the pro position. Curr Opin Clin Nutr Metab Care 2020; 23:91-95. [PMID: 32004237 DOI: 10.1097/mco.0000000000000638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE OF REVIEW Controversies about the adequate amount of energy to deliver to critically ill patients are still going on, trying to find if hypocaloric or normocaloric regimen is beneficial in this population. Our purpose is to review recent publications using or not indirect calorimetry. RECENT FINDINGS Numerous studies have compared hypocaloric to normocaloric regimen using predictive equations. However, these equations have been demonstrated to be inaccurate in most of the cases. Some recent PRCT using indirect calorimetry are finding some advantages to isocalorie regimens, but others not. Timing of the nutrition respecting or not the early substrate endogenous production, use of an adequate amount of protein, respect of the daily variability of needs may explain the divergent results observed. SUMMARY Indirect calorimetry should be used to define the energy expenditure of the patient and to determine its requirements. More studies comparing isocalorie to hypocalorie regimens with fixed protein intake are necessary to confirm the observational and some of the PRCT-positive studies.
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Affiliation(s)
- Pierre Singer
- Department of General Intensive Care, Rabin Medical Center, Petah Tikva and Sackler School of Medicine, Tel Aviv University, Israel
| | - Claude Pichard
- Nutrition Unit, Geneva University Hospital, Rue Gabrielle-Perret-Gentil 4, Geneva, Switzerland
| | - Sornwichate Rattanachaiwong
- Division of Clinical Nutrition, Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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Lheureux O, Preiser JC. Is slower advancement of enteral feeding superior to aggressive full feeding regimens in the early phase of critical illness. Curr Opin Clin Nutr Metab Care 2020; 23:121-126. [PMID: 31895245 DOI: 10.1097/mco.0000000000000626] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE OF REVIEW An excessive caloric intake during the acute phase of critical illness is associated with adverse effects, presumably related to overfeeding, inhibition of autophagy and refeeding syndrome. The purpose of this review is to summarize recently published clinical evidence in this area. RECENT FINDINGS Several observational studies, a few interventional trials, and systematic reviews/metaanalyses were published in 2017-2019. Most observational studies reported an association between caloric intakes below 70% of energy expenditure and a better vital outcome. In interventional trials, or systematic reviews, neither a benefit nor a harm was related to increases or decreases in caloric intake. Gastrointestinal dysfunction can be worsened by forced enteral feeding, whereas the absorption of nutrients can be impaired. SUMMARY Owing to the risks of the delivery of an excessive caloric intake, a strategy of permissive underfeeding implying a caloric intake matching a maximum of 70% of energy expenditure provides the best risk-to-benefit ratio during the acute phase of critical illness.
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Affiliation(s)
- Olivier Lheureux
- Department of Intensive Care, CUB-Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
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Medical Nutrition Therapy in Critically Ill Patients Treated on Intensive and Intermediate Care Units: A Literature Review. J Clin Med 2019; 8:jcm8091395. [PMID: 31500087 PMCID: PMC6780491 DOI: 10.3390/jcm8091395] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022] Open
Abstract
Medical nutrition therapy in critically ill patients remains challenging, not only because of the pronounced stress response with a higher risk for complications, but also due to their heterogeneity evolving from different phases of illness. The present review aims to address current knowledge and guidelines in order to summarize how they can be best implemented into daily clinical practice. Further studies are urgently needed to answer such important questions as best timing, route, dose, and composition of medical nutrition therapy for critically ill patients and to determine how to assess and to adapt to patients’ individual needs.
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Nutritrauma: A Key Concept for Minimising the Harmful Effects of the Administration of Medical Nutrition Therapy. Nutrients 2019; 11:nu11081775. [PMID: 31374909 PMCID: PMC6723989 DOI: 10.3390/nu11081775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 12/25/2022] Open
Abstract
Critically ill patients often require life support measures such as mechanical ventilation or haemodialysis. Despite the essential role of nutrition in patients’ recovery, the inappropriate use of medical nutrition therapy can have deleterious effects, as is the case with the use of respiratory, circulatory, or renal support. To increase awareness and to monitor the effects of inappropriate medical nutrition therapy, we propose to introduce the concept of nutritrauma in clinical practice, defined as metabolic adverse events related to the inappropriate administration of medical nutrition therapy or inadequate nutritional monitoring.
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Hung KY, Chen YM, Wang CC, Wang YH, Lin CY, Chang YT, Huang KT, Lin MC, Fang WF. Insufficient Nutrition and Mortality Risk in Septic Patients Admitted to ICU with a Focus on Immune Dysfunction. Nutrients 2019; 11:nu11020367. [PMID: 30744171 PMCID: PMC6412372 DOI: 10.3390/nu11020367] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 01/30/2019] [Accepted: 02/06/2019] [Indexed: 12/29/2022] Open
Abstract
Immune dysfunction is seen both in sepsis patients and in those with malnutrition. This study aimed to determine whether insufficient nutrition and immune dysfunction have a synergistic effect on mortality in critically ill septic patients. We conducted a prospective observational study from adult sepsis patients admitted to intensive care units (ICUs) between August 2013 and June 2016. Baseline characteristics including age, gender, body mass index, NUTRIC, Acute Physiology and Chronic Health Evaluation (APACHE) II and Sequential Organ Failure Assessment (SOFA) scores were recorded. Immune dysfunction, defined by human leukocyte antigen DR (HLA-DR) expression, was tested at days 1, 3, and 7 of ICU admission. The study included 151 patients with sepsis who were admitted to the ICU. The 28-day survivors had higher day 7 caloric intakes (89% vs. 73%, p = 0.042) and higher day 1-HLA-DR expression (88.4 vs. 79.1, p = 0.045). The cut-off points of day 7 caloric intake and day 1-HLA-DR determined by operating characteristic curves were 65.1% and 87.2%, respectively. Immune dysfunction was defined as patients with day 1-HLA-DR < 87.2%. Insufficient nutrition had no influence on survival outcomes in patients with immune dysfunction. However, patients with insufficient nutrition had poor prognosis when they were immune competent. Insufficient nutrition and immune dysfunction did not have a synergistic effect on mortality in critically ill septic patients.
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Affiliation(s)
- Kai-Yin Hung
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
- Department of nutritional Therapy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan.
| | - Yu-Mu Chen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan.
| | - Chin-Chou Wang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi 813, Taiwan.
| | - Yi-Hsi Wang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
| | - Chiung-Yu Lin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
| | - Ya-Ting Chang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
| | - Kuo-Tung Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
| | - Meng-Chih Lin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi 813, Taiwan.
| | - Wen-Feng Fang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosung, Kaohsiung 833, Taiwan.
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi 813, Taiwan.
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