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Oliveira LDA, Ventura JC, Hauschild DB, Moreno YMF. Phase angle as a prognostic indicator in critically ill children: A systematic review. Nutr Clin Pract 2024; 39:385-395. [PMID: 37221576 DOI: 10.1002/ncp.11011] [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: 09/06/2022] [Revised: 03/22/2023] [Accepted: 04/16/2023] [Indexed: 05/25/2023] Open
Abstract
Phase angle (PhA) may reflect the integrity of cellular membranes, hydration status, and total body cell mass. Studies have shown that PhA can be used as a good predictor for evaluation of disease severity in critically ill adults. However, there is a lack of studies assessing the association between PhA and clinical outcomes in critically ill children. This systematic review described the association between PhA at pediatric intensive care unit (PICU) admission with clinical outcomes in critically ill children. The search was conducted using PubMed/Medline, Scopus, Web of Science, EMBASE and LILACS until July 22, 2022. Studies that evaluate the association between PhA at PICU admission in critically ill children and clinical outcomes were eligible. Data regarding population, study design, setting, bioelectrical impedance analysis (BIA) protocol used, PhA classification, and outcome analysis were extracted. Risk of bias was assessed by Newcastle-Ottawa Scale. Among the 4669 articles screened, five prospective studies were included. The studies have shown association between lower values of PhA at PICU admission with longer PICU and hospital length of stay, duration of mechanical ventilation, septic shock, and higher mortality risk. Small sample size, different clinical conditions, and methodological differences of the studies regarding BIA equipment and cutoffs of PhA were observed. Although the studies have limitations, the PhA has a potential role in predicting clinical outcomes in critically ill children. Larger studies with standardized PhA protocols and other relevant clinical outcomes are necessary.
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Affiliation(s)
- Luna D A Oliveira
- Graduate Program in Nutrition, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Julia C Ventura
- Graduate Program in Nutrition, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Daniela B Hauschild
- Graduate Program in Nutrition, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Yara M F Moreno
- Graduate Program in Nutrition, Federal University of Santa Catarina, Florianópolis, Brazil
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Guan X, Chen D, Xu Y. Clinical practice guidelines for nutritional assessment and monitoring of adult ICU patients in China. JOURNAL OF INTENSIVE MEDICINE 2024; 4:137-159. [PMID: 38681796 PMCID: PMC11043647 DOI: 10.1016/j.jointm.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 05/01/2024]
Abstract
The Chinese Society of Critical Care Medicine (CSCCM) has developed clinical practice guidelines for nutrition assessment and monitoring for patients in adult intensive care units (ICUs) in China. This guideline focuses on nutrition evaluation and metabolic monitoring to achieve optimal and personalized nutrition therapy for critically ill patients. This guideline was developed by experts in critical care medicine and evidence-based medicine methodology and was developed after a thorough review of the system and a summary of relevant trials or studies published from 2000 to July 2023. A total of 18 recommendations were formed and consensus was reached through discussions and reviews by expert groups in critical care medicine, parenteral and enteral nutrition, and surgery. The recommendations are based on currently available evidence and cover several key fields, including screening and assessment, evaluation and assessment of enteral feeding intolerance, metabolic and nutritional measurement and monitoring during nutrition therapy, and organ function evaluation related to nutrition supply. Each question was analyzed according to the Population, Intervention, Comparison, and Outcome (PICO) principle. In addition, interpretations were provided for four questions that did not reach a consensus but may have potential clinical and research value. The plan is to update this nutrition assessment and monitoring guideline using the international guideline update method within 3-5 years.
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Affiliation(s)
- Xiangdong Guan
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dechang Chen
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Xu
- Department of Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Beijing, China
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3
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Lakenman PLM, van Marwijk I, van der Hoven B, van Bommel J, Joosten KFM, Olieman JF. Association between fat-free mass and survival in critically ill patients with COVID-19: A prospective cohort study. JPEN J Parenter Enteral Nutr 2024; 48:192-198. [PMID: 38035857 DOI: 10.1002/jpen.2585] [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: 12/27/2022] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Most critically ill patients with COVID-19 experience malnutrition and weight loss associated with negative clinical outcomes. Our primary aim was to assess body composition during acute and late phase of illness in these patients in relation to clinical outcome and secondary to tailored nutrition support. METHODS This prospective cohort study included adult critically ill patients with COVID-19. Body composition (fat-free mass [FFM] [exposure of interest], fat mass [FM], skeletal muscle mass [SMM], and phase angle [PA]) was determined with multifrequency bioelectrical impedance analyses in the acute and late phase. Nutrition support data were collected simultaneously. Clinical outcome was defined as intensive care unit (ICU) survival (primary outcome) and 30-90 days thereafter, duration of mechanical ventilation, and length of ICU stay and length of hospital stay (LOS). Nonparametric tests and regression analyses were performed. RESULTS We included 70 patients (73% male, median age 60 years). Upon admission, median BMI was 30 kg/m2 , 54% had obesity (BMI > 30 kg/m2 ). Median weight change during ICU stay was -3 kg: +3 kg FM and -6 kg FFM (-4 kg SMM). Body composition changed significantly (P < 0.001). Regarding clinical outcome, only low PA was associated with prolonged LOS (odds ratio = 0.83, 95% CI = 0.72-0.96; P = 0.015). Patients with optimal protein intake (>80%) during acute phase maintained significantly more FFM (2.7 kg, P = 0.047) in the late phase compared with patients who received <80%. CONCLUSION FFM decreased significantly during acute and late phase of illness, but we observed no association with ICU survival. Only low PA was associated with prolonged LOS. FFM wasting likely occurred because of disease severity and immobility.
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Affiliation(s)
- Patty L M Lakenman
- Department of Internal Medicine, Division of Dietetics, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Iris van Marwijk
- Department of Internal Medicine, Division of Dietetics, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Ben van der Hoven
- Department of Intensive Care Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Jasper van Bommel
- Department of Intensive Care Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Koen F M Joosten
- Intensive Care Unit, Department of Paediatrics and Paediatric Surgery, Erasmus Medical Centre - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Joanne F Olieman
- Department of Internal Medicine, Division of Dietetics, Erasmus Medical Centre, Rotterdam, the Netherlands
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Cleymaet R, D’Hondt M, Scheinok T, Malbrain L, De Laet I, Schoonheydt K, Dits H, Van Regenmortel N, Mekeirele M, Cordemans C, Minini A, Severgnini P, Dabrowski W, Wong A, Malbrain MLNG. Comparison of Bioelectrical Impedance Analysis (BIA)-Derived Parameters in Healthy Volunteers and Critically Ill Patients. Life (Basel) 2023; 14:27. [PMID: 38255643 PMCID: PMC10821189 DOI: 10.3390/life14010027] [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: 04/24/2023] [Revised: 11/21/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
OBJECTIVE To compare bioelectrical impedance analysis (BIA)-derived parameters in healthy volunteers and critically ill patients and to assess its prognostic value in an ICU patient cohort. DESIGN Retrospective, observational data analysis. SETTING Single centre, tertiary-level ICU (Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg Hospital). PATIENTS 101 patients and 101 healthy subjects, participants of International Fluid Academy Days. MEASUREMENTS AND MAIN RESULTS Compared to healthy volunteers, both male and female ICU patients had significantly higher values for total body water (TBW), extracellular water (ECW), extracellular fluid (ECF), plasma, and interstitial fluid volumes. The phase angle was significantly lower and the malnutrition index was significantly higher in ICU patients, regardless of gender. Non-survivors in the ICU had significantly higher extracellular water content (ECW, 50.7 ± 5.1 vs. 48.9 ± 4.3%, p = 0.047) and accordingly significantly lower intracellular water (ICW, 49.2 ± 5.1 vs. 51.1 ± 4.3%, p = 0.047). The malnutrition index was also significantly higher in non-survivors compared to survivors (0.94 ± 0.17 vs. 0.87 ± 0.16, p = 0.048), as was the capillary leak index (ECW/ICW). CONCLUSIONS Compared to healthy volunteers, this study observed a higher malnutrition index and TBW in ICU patients with an accumulation of fluids in the extracellular compartment. ICU non-survivors showed similar results, indicating that ICU patients and a fortiori non-survivors are generally overhydrated, with increased TBW and ECW, and more undernourished, as indicated by a higher malnutrition index.
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Affiliation(s)
- Robbert Cleymaet
- Department of Oromaxillofacial and Plastic Surgery, Ghent University Hospital, 9000 Ghent, Belgium
| | - Marvin D’Hondt
- Department of Oromaxillofacial and Plastic Surgery, Ghent University Hospital, 9000 Ghent, Belgium
| | - Thomas Scheinok
- Department of Neurology, University Hospital Brussels (UZB), 1090 Jette, Belgium
| | - Luca Malbrain
- University School of Medicine, Katholieke Universiteit Leuven (KUL), 3000 Leuven, Belgium
| | - Inneke De Laet
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, 2000 Antwerp, Belgium
| | - Karen Schoonheydt
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, 2000 Antwerp, Belgium
| | - Hilde Dits
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, 2000 Antwerp, Belgium
| | - Niels Van Regenmortel
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, 2000 Antwerp, Belgium
| | - Michael Mekeirele
- Department of Intensive Care Medicine, University Hospital Brussels (UZB), 1090 Jette, Belgium
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), 1090 Jette, Belgium
| | - Colin Cordemans
- Department of Intensive Care, AZ Sint-Maria Hospital, 1500 Halle, Belgium;
| | - Andrea Minini
- Department of Intensive Care Medicine, University Hospital Brussels (UZB), 1090 Jette, Belgium
- School of Anaesthesia and Intensive Care, Dipartimento di Biotecnologie e Scienze della Vita, Insubria University, 21100 Varese, Italy;
| | - Paolo Severgnini
- School of Anaesthesia and Intensive Care, Dipartimento di Biotecnologie e Scienze della Vita, Insubria University, 21100 Varese, Italy;
- Department of Anestesia e Rianimazione Cardiologica, ASST dei Sette Laghi, Ospedale di Circolo e Fondazione Macchi, 21100 Varese, Italy
| | - Wojciech Dabrowski
- First Department of Anaesthesiology and Intensive Therapy, Medical University Lublin, 20-954 Lublin, Poland
| | - Adrian Wong
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), 1090 Jette, Belgium
- Department of Intensive Care Medicine and Anaesthesia, King’s College Hospital, Denmark Hill, London SE5 9RS, UK
| | - Manu L. N. G. Malbrain
- First Department of Anaesthesiology and Intensive Therapy, Medical University Lublin, 20-954 Lublin, Poland
- International Fluid Academy, 3360 Lovenjoel, Belgium
- Medaman, Medical Data Management, 2440 Geel, Belgium
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Santer D, Schneider N, de Carvalho YSS, de Souza Bortolini RV, Silva FM, Franken DL, da Silva Fink J. The association between reduced calf and mid-arm circumferences and ICU mortality in critically ill COVID-19 patients. Clin Nutr ESPEN 2023; 54:45-51. [PMID: 36963893 PMCID: PMC9831974 DOI: 10.1016/j.clnesp.2023.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Abstract
BACKGROUND & AIMS Patients with COVID-19 are at a high risk of malnutrition caused by inflammatory syndrome and persistent hypermetabolism, which may affect clinical outcomes. This study aimed to evaluate the changes in nutritional status indicators between two time points of nutritional assessments of COVID-19 patients during their stay in the intensive care unit (ICU). Moreover, the study also assessed the association of nutritional status with ICU mortality. METHODS This cohort study included retrospective data of adult patients admitted to a public hospital ICU in southern Brazil, between March and September 2020. These participants with confirmed COVID-19 diagnosis received nutritional assessment within the first 72 h after ICU admission. The anthropometric measurements collected included mid-arm circumference (MAC) and calf circumference (CC). The percentage (%) of MAC adequacy was calculated, and values < 50th percentile for sex and age were considered low. CC values of ≤33 cm for women and ≤34 cm for men were indicative of reduced muscle mass. Data on the date of discharge from the ICU and mortality outcome were collected. RESULTS A total of 249 patients were included (53.4% men, 62.2 ± 13.9 years of age, SOFA severity score 9.6 ± 3.5). Of these, 22.7 and 39.1% had reduced MAC and CC at ICU admission, respectively. In these participants, weight, MAC, CC, and % MAC decreased significantly from the first to second nutritional assessment (p < 0.05), but there was no significant difference between survivors and non-survivors. Patients with reduced CC (HR = 2.63; 95% CI 1.65-4.18) or reduced MAC (HR = 2.11; 95% CI 1.37-3.23) at the first nutritional assessment had approximately twice the risk of death in the ICU than those with normal CC and normal MAC, regardless of the severity assessed by the SOFA score and age. CONCLUSION Reduced MAC and CC values were identified in approximately 20 and 40% of COVID-19 patients admitted to the ICU, respectively. Additionally, these indicators of nutritional depletion were associated with an approximately 2-fold increase in the risk of ICU mortality. A significant reduction in anthropometric indicators during the first weeks of ICU stay confirmed the deterioration of nutritional status in these patients, although this was not associated with mortality.
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Affiliation(s)
- Danieli Santer
- Grupo Hospitalar Conceição, Multiprofessional Residency in Health, Porto Alegre, Rio Grande do Sul, Brazil
| | - Nicole Schneider
- Grupo Hospitalar Conceição, Multiprofessional Residency in Health, Porto Alegre, Rio Grande do Sul, Brazil
| | - Yasmim Sena Silva de Carvalho
- Grupo Hospitalar Conceição, Division of Nutrition and Dietetics of Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil
| | - Renata Vieira de Souza Bortolini
- Grupo Hospitalar Conceição, Division of Nutrition and Dietetics of Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil
| | - Flávia Moraes Silva
- Nutrition Department and Graduate Program of Nutrition Science at Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - Débora Luiza Franken
- Grupo Hospitalar Conceição, Division of Nutrition and Dietetics of Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jaqueline da Silva Fink
- Grupo Hospitalar Conceição, Division of Nutrition and Dietetics of Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil.
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6
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Zheng WH, Zhao YH, Yao Y, Huang HB. Prognostic role of bioelectrical impedance phase angle for critically ill patients: A systemic review and meta-analysis. Front Med (Lausanne) 2023; 9:1059747. [PMID: 36698812 PMCID: PMC9868673 DOI: 10.3389/fmed.2022.1059747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
Objective Bioelectrical impedance-derived phase angle (PA) has exhibited good prognostic values in several non-critical illnesses. However, its predictive value for critically ill patients remains unclear. Thus, we aimed to perform a systematic review and meta-analysis to investigate the relationship between PA and survival in such a patient population. Materials and methods We searched for relevant studies in PubMed, Embase, and the Cochrane database up to Jan 20, 2022. Meta-analyses were performed to determine the association between the baseline PA after admission with survival. We further conducted subgroup analyses and sensitivity analyses to explore the sources of heterogeneity. Results We included 20 studies with 3,770 patients. Patients with low PA were associated with a significantly higher mortality risk than those with normal PA (OR 2.45, 95% CI 1.97-3.05, P < 0.00001). Compared to survivors, non-survivors had lower PA values (MD 0.82°, 95% CI 0.66-0.98; P < 0.00001). Similar results were also found when pooling studies reported regression analyses of PA as continuous (OR = 0.64; 95% CI 0.52-0.79, P < 0.00001) or categorical variable (OR = 2.42; 95% CI 1.76-3.34; P < 0.00001). These results were further confirmed in subgroup analyses and sensitivity analyses. Conclusion Our results indicated that PA may be an important prognostic factor of survival in critically ill patients and can nicely complement the deficiencies of other severity scoring systems in the ICU setting.
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Affiliation(s)
- Wen-He Zheng
- Department of Critical Care Medicine, Rehabilitation Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yi-He Zhao
- Department of Critical Care Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Yan Yao
- Department of Critical Care Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Hui-Bin Huang
- Department of Critical Care Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China,*Correspondence: Hui-Bin Huang,
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Smith LO, Olieman JF, Berk KA, Ligthart-Melis GC, Earthman CP. Clinical applications of body composition and functional status tools for nutrition assessment of hospitalized adults: A systematic review. JPEN J Parenter Enteral Nutr 2023; 47:11-29. [PMID: 36036239 DOI: 10.1002/jpen.2444] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND No global consensus exists on diagnostic criteria for malnutrition. Muscular deficits and functional impairments are major components of available malnutrition diagnostic frameworks because these facets of nutrition status significantly impact outcomes. The purpose of this review is to explore which body composition assessment (BCA) and functional status assessment (FSA) tools are being used for nutrition assessment (NA) and monitoring the response to nutrition interventions (RNIs) in adult inpatients. METHODS A literature search of Embase, Medline (Ovid), Web of Science, and Cochrane Central was performed to identify studies that used BCA and/or FSA tools for NA (along with an accepted NA diagnostic framework) and/or for monitoring RNI in adult inpatients. RESULTS The search yielded 3667 articles; 94 were included in the review. The number of studies using BCA and/or FSA tools for NA was 47 and also 47 for monitoring RNI. Seventy-nine percent of studies used bioimpedance for BCA, and 97% that included FSA utilized handgrip strength. When compared against sets of diagnostic criteria, many of the BCA and FSA tools showed promising associations with nutrition status. CONCLUSION Bioimpedance methods are the most widely used bedside BCA tools, and handgrip strength is the most widely used FSA tool; however, these methods are being used with a variety of protocols, algorithms, and interpretation practices in heterogeneous populations. To create a standardized nutrition status assessment process there is a need for validation studies on bedside methods and the development of globally standardized assessment protocols in clinical inpatient settings.
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Affiliation(s)
- Luke O Smith
- Department of Behavioral Health and Nutrition, University of Delaware, Newark, Delaware, USA
| | - Joanne F Olieman
- Division of Dietetics, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Kirsten A Berk
- Division of Dietetics, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Gerdien C Ligthart-Melis
- Division of Dietetics, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Carrie P Earthman
- Department of Behavioral Health and Nutrition, University of Delaware, Newark, Delaware, USA
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Lima J, Eckert I, Gonzalez MC, Silva FM. Prognostic value of phase angle and bioelectrical impedance vector in critically ill patients: A systematic review and meta-analysis of observational studies. Clin Nutr 2022; 41:2801-2816. [PMID: 36395589 DOI: 10.1016/j.clnu.2022.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/21/2022] [Accepted: 10/14/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND AIMS Assessment of the raw parameters derived from bioelectrical impedance analysis (BIA) has gained emphasis in critically ill patients. The phase angle (PhA) reflects the integrity of the cell membrane, and bioelectrical impedance vector analysis (BIVA) is indicative of patients' hydration status. The aim of this study was to investigate whether these parameters are associated with clinical outcomes in the intensive care unit (ICU) setting. METHODS We conducted a systematic review with meta-analysis. We searched PubMed, Embase, Scopus and Web of Science for all published observational studies without language restrictions up to April 2022. Two reviewers independently performed study selection and data extraction. We judged the risk of bias by the Newcastle-Ottawa Scale and the certainty of evidence by the GRADE approach. Mortality was the primary outcome. Secondary outcomes included ICU length of stay, hospital length of stay, duration of mechanical ventilation, nutritional risk, and malnutrition. A meta-analysis with a random-effect model was performed to combine data on R version 3.6.2. RESULTS Twenty-seven studies were included in the systematic review (4872 participants). Pooled analysis revealed that patients with low PhA had a higher risk of death (14 studies; RR = 1.82, 95% CI 1.46 to 2.26; I2 = 42%) and spent more days in ICU (6 studies; MD = 1.79, 95% CI 0.33 to 3.24, I2 = 69%) in comparison to patients with normal PhA. The pooled analysis also showed higher PhA values in survivors compared to non-survivor patients (12 studies; MD = 0.75°, 95% CI 0.60° to 0.91°, I2 = 31%). Overhydration defined by BIVA was not a predictor of mortality (4 studies; RR = 1.01, 95% CI 0.70 to 1.46; I2 = 0%). More than 40% of primary studies were classified with a high risk of bias, and the quality of evidence ranged from low to very low. CONCLUSIONS This meta-analysis revealed, with limited evidence, that low PhA was associated with higher mortality and ICU length of stay, while overhydration identified by BIVA was not a predictor of death in critically ill patients.
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Affiliation(s)
- Júlia Lima
- Master Student at Nutrition Science Graduate Program Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | | | - Maria Cristina Gonzalez
- Professor at Graduate Program in Health and Behavior, Catholic University of Pelotas, Rio Grande do Sul, Brazil
| | - Flávia Moraes Silva
- Professor at Nutrition Department and Nutrition Science Graduate Program of Federal University of Health Science of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
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9
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Rashid Farokhi F, Kalateh E, Shafaghi S, Schneider AG, Mortazavi SM, Jamaati H, Hashemian SMR. Applying bio-impedance vector analysis (BIVA) to adjust ultrafiltration rate in critically ill patients on continuous renal replacement therapy: A randomized controlled trial. J Crit Care 2022; 72:154146. [PMID: 36116287 DOI: 10.1016/j.jcrc.2022.154146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Bioimpedance vector analysis (BIVA) has been suggested as a valuable tool in assessing volume status in critically ill patients. However, its effectiveness in guiding fluid removal by continuous renal replacement therapy (CRRT) has not been evaluated. METHODS In this randomized controlled trial, 65 critically ill patients receiving CRRT were allocated on a 1:1 ratio to have UF prescribed and adjusted using BIVA fluid assessment in the intervention group (32 patients) or conventional clinical parameters (33 patients). The primary outcome was the lean body mass (LBM) water content at CRRT discontinuation, and the secondary outcomes included the mortality rate, urinary output, the duration of ventilation support, and ICU stay. RESULTS The study group was associated with a lower water content of LBM (80.7 ± 9.4 vs. 85.9 ± 10.4%; p < 0.05), and a higher mean UF-rate and urinary output (1.5 ± 0.8 vs. 1.2 ± 0.5 ml/kg/h and 0.9 ± 0.9 vs 0.5 ± 0.6 ml/kg/h, both: p < 0.05). The mortality rate, the length of ICU stay, and ventilation support duration were similar. CONCLUSION BIVA guided UF prescription may be associated with a lower rate of fluid overload. Larger studies are required to evaluate its impact on patients' outcomes.
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Affiliation(s)
- Farin Rashid Farokhi
- CKD Research Centre, Shahid Beheshti University of Medical Science, Tehran, Iran; Nephrology Department, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran; Telemedicine Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | - Effat Kalateh
- Internal Medicine Department, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | - Shadi Shafaghi
- Lung Transplantation Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | - Antoine Guillaume Schneider
- Adult Intensive Care Unit, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; University of Lausanne, Lausanne, Switzerland.
| | - Seyed Mehdi Mortazavi
- Critical Care Department, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Hamidreza Jamaati
- Chronic Respiratory Disease Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran.
| | - Seyed Mohammad Reza Hashemian
- Critical Care Department, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran; Chronic Respiratory Disease Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Science, Tehran, Iran.
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10
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Alves EAS, Salazar TCDN, Silvino VO, Cardoso GA, Dos Santos MAP. Association between phase angle and adverse clinical outcomes in hospitalized patients with COVID-19: A systematic review. Nutr Clin Pract 2022; 37:1105-1116. [PMID: 35932291 PMCID: PMC9539244 DOI: 10.1002/ncp.10901] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/28/2022] [Accepted: 07/16/2022] [Indexed: 12/12/2022] Open
Abstract
Phase angle, obtained by bioelectrical impedance, is an indicator of cellular integrity and has been proposed as a prognostic parameter in patients who are critically ill. This systematic review aimed to evaluate the association between phase angle and adverse clinical outcomes in hospitalized patients with coronavirus disease–2019 (COVID‐19). An extensive literature search was performed in the MEDLINE/PubMed, Embase, and Web of Science databases, with interest in observational studies evaluating the association between phase angle and adverse clinical outcomes in individuals aged ≥18 years hospitalized with COVID‐19. Studies were independently selected by two reviewers, according to eligibility criteria. Subsequently, data were extracted and presented in a qualitative synthesis. The evaluation of the quality of the studies was performed according to the Newcastle‐Ottawa scale. The full methodology was published in PROSPERO (ID CRD42022306177). A total of 392 articles were identified, resulting in seven selected studies, of which six were prospective cohorts and one was retrospective. In the quality assessment, six studies obtained scores equal to or greater than seven, indicating a low risk of bias. A total of 750 participants composed the samples of the selected studies. Five studies reported an independent association between phase angle and adverse clinical outcomes during hospitalization for COVID‐19, with emphasis on prolonged hospitalization and mechanical ventilation and higher mortality in patients with a lower phase angle. Thus, phase angle measurement can be useful in the early identification of risks in patients hospitalized with COVID‐19, for the purpose of adequacy of clinical management.
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Affiliation(s)
- Elyudienne Andressa Silva Alves
- Postgraduate Program in Science and Health, Federal University of Piauí, Teresina, Piauí, Brazil.,Department of Biophysics and Physiology, Nucleus of Study in Physiology Applied to Performance and Health (NEFADS), Federal University of Piauí, Teresina, Piauí, Brazil
| | - Teresa Cristina do Nascimento Salazar
- Postgraduate Program in Science and Health, Federal University of Piauí, Teresina, Piauí, Brazil.,Department of Biophysics and Physiology, Nucleus of Study in Physiology Applied to Performance and Health (NEFADS), Federal University of Piauí, Teresina, Piauí, Brazil
| | - Valmir Oliveira Silvino
- Postgraduate Program in Science and Health, Federal University of Piauí, Teresina, Piauí, Brazil.,Department of Biophysics and Physiology, Nucleus of Study in Physiology Applied to Performance and Health (NEFADS), Federal University of Piauí, Teresina, Piauí, Brazil.,Rede Nordeste de Biotecnologia (RENORBIO), Postgraduate Program in Biotechnology in Health, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Glêbia Alexa Cardoso
- Postgraduate Program in Health and Society, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, Brazil
| | - Marcos Antonio Pereira Dos Santos
- Postgraduate Program in Science and Health, Federal University of Piauí, Teresina, Piauí, Brazil.,Department of Biophysics and Physiology, Nucleus of Study in Physiology Applied to Performance and Health (NEFADS), Federal University of Piauí, Teresina, Piauí, Brazil.,Postgraduate Program in Health and Society, State University of Rio Grande do Norte, Mossoró, Rio Grande do Norte, Brazil
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11
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Moonen HPFX, Van Zanten ARH. Bioelectric impedance analysis for body composition measurement and other potential clinical applications in critical illness. Curr Opin Crit Care 2021; 27:344-353. [PMID: 33967207 PMCID: PMC8270506 DOI: 10.1097/mcc.0000000000000840] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
PURPOSE OF REVIEW Insight into body composition is of great value in the ICU. Bioelectric impedance analysis (BIA) is the most applicable bedside technique. However, bioimpedance has not been validated in the critically ill, and the interpretation of the measurements poses challenges. This review discusses the potential clinical applications of BIA and explores caveats and solutions to its use in the intensive care setting. RECENT FINDINGS A correlation is repeatedly found between raw impedance parameters, fluid ratios, overhydration, and adverse outcome of critical illness. However, cut-off and reference values remain elusive. Experience with BIA-guided fluid management in the ICU is limited. BIA-derived muscle mass appears a promising biomarker for sarcopenia, correlating well with CT-analysis. Body cell mass and fat-free mass provide potential use in estimation of metabolic rate, protein requirements and pharmacokinetics. Several methods of reducing bias in BIA parameters in critical illness require validation. SUMMARY There are currently too many uncertainties and discrepancies regarding interpretation of bioimpedance in critical illness, to justify therapeutic consequences. However, there are several promising areas of research, concerning some of the most urgent clinical problems in intensive care, emphasizing the need to evaluate further the use and interpretation of bioimpedance in the intensive care setting.
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Affiliation(s)
| | - Arthur Raymond Hubert Van Zanten
- Department of Intensive Care Medicine, Gelderse Vallei Hospital, Ede
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, The Netherlands
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12
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Regli IB, Turner R, Woyke S, Rauch S, Brugger H, Gatterer H. Bioelectrical Impedance Vector Analysis: A Valuable Tool to Monitor Daily Body Hydration Dynamics at Altitude. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:5455. [PMID: 34065211 PMCID: PMC8161038 DOI: 10.3390/ijerph18105455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/14/2021] [Accepted: 05/16/2021] [Indexed: 12/19/2022]
Abstract
Bioelectrical impedance vector analysis (BIVA) is a method used to estimate variation in body hydration. We assessed the potential of BIVA for monitoring daily body hydration fluctuations in nine healthy, normally active males under matching normoxic (NX) and hypobaric hypoxic (HH) experimental conditions. Furthermore, we aimed to investigate whether changes in BIVA may correspond with the development of acute mountain sickness (AMS). Subjects were exposed in a hypobaric chamber to both NX (corresponding to an altitude of 262 m) and HH conditions corresponding to an altitude of 3500 m during two four-day sojourns within which food, water intake and physical activity were controlled. Bioimpedance and body weight measurements were performed three times a day and medical symptoms were assessed every morning using the Lake Louise score (LLS). Total body water (TBW) was also assessed on the last day of both sojourns using the deuterium dilution technique. We detected circadian changes in vector length, indicating circadian body water variations that did not differ between NX and HH conditions (ANOVA effects: time: p = 0.018, eta2 = 0.149; interaction: p = 0.214, eta2 = 0.083; condition: p = 0.920, eta2 = 0.001). Even though none of the subjects developed AMS, four subjects showed clinical symptoms according to the LLS during the first 24 hours of HH conditions. These subjects showed a pronounced (Cohen's d: 1.09), yet not statistically significant (p = 0.206) decrease in phase angle 6 hours after exposure, which may indicate fluid shift from the intracellular to the extracellular compartment. At the end of each sojourn, vector length correlated with deuterium dilution TBW "gold standard" measurements (linear regression: NX: p = 0.002 and r2 = 0.756, HH: p < 0.001 and r2 = 0.84). BIVA can be considered a valuable method for monitoring body hydration changes at altitude. Whether such changes are related to the development of clinical symptoms associated with AMS, as indicated in the present investigation, must be confirmed in future studies.
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Affiliation(s)
- Ivo B. Regli
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
- Department of Anaesthesia and Intensive Care, “F. Tappeiner” Hospital, 39012 Merano, Italy
| | - Rachel Turner
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
| | - Simon Woyke
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
- Department of Anaesthesiology and Intensive Care, Medical University, 6020 Innsbruck, Austria
| | - Simon Rauch
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
- Department of Anaesthesia and Intensive Care, “F. Tappeiner” Hospital, 39012 Merano, Italy
| | - Hermann Brugger
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
- Department of Anaesthesiology and Intensive Care, Medical University, 6020 Innsbruck, Austria
| | - Hannes Gatterer
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy; (R.T.); (S.W.); (S.R.); (H.B.); (H.G.)
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13
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Murugan R, Bellomo R, Palevsky PM, Kellum JA. Ultrafiltration in critically ill patients treated with kidney replacement therapy. Nat Rev Nephrol 2021; 17:262-276. [PMID: 33177700 PMCID: PMC9826716 DOI: 10.1038/s41581-020-00358-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2020] [Indexed: 01/30/2023]
Abstract
Management of fluid overload is one of the most challenging problems in the care of critically ill patients with oliguric acute kidney injury. Various clinical practice guidelines support fluid removal using ultrafiltration during kidney replacement therapy. However, ultrafiltration is associated with considerable risks. Emerging evidence from observational studies suggests that both slow and fast rates of net fluid removal (that is, net ultrafiltration (UFNET)) during continuous kidney replacement therapy are associated with increased mortality compared with moderate UFNET rates. In addition, fast UFNET rates are associated with an increased risk of cardiac arrhythmias. Experimental studies in patients with kidney failure who were treated with intermittent haemodialysis suggest that fast UFNET rates are also associated with ischaemic injury to the heart, brain, kidney and gut. The UFNET rate should be prescribed based on patient body weight in millilitres per kilogramme per hour with close monitoring of patient haemodynamics and fluid balance. Dialysate cooling and sodium modelling may prevent haemodynamic instability and facilitate large volumes of fluid removal in patients with kidney failure who are treated with intermittent haemodialysis, but the effects of this strategy on organ injury are less well studied in critically ill patients treated with continuous kidney replacement therapy. Randomized trials are required to examine whether moderate UFNET rates are associated with a reduced risk of haemodynamic instability, organ injury and improved outcomes in critically ill patients.
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Affiliation(s)
- Raghavan Murugan
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| | - Rinaldo Bellomo
- Department of Intensive Care Medicine, The University of Melbourne, Austin Hospital, Melbourne, Victoria, Australia
| | - Paul M Palevsky
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John A Kellum
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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14
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Abstract
Emerging evidence from observational studies suggests that both slower and faster net ultrafiltration rates during kidney replacement therapy are associated with increased mortality in critically ill patients with acute kidney injury and fluid overload. Faster rates are associated with ischemic organ injury. The net ultrafiltration rate should be prescribed based on patient body weight in milliliters per kilogram per hour, with close monitoring of patient hemodynamics and fluid balance. Randomized trials are required to examine whether moderate net ultrafiltration rates compared with slower and faster rates are associated with reduced risk of hemodynamic instability, organ injury, and improved outcomes.
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Affiliation(s)
- Vikram Balakumar
- Department of Critical Care Medicine, Mercy Hospitals, Springfield, MO, USA; Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. https://twitter.com/vikrambalakumar
| | - Raghavan Murugan
- Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, University of Pittsburgh School of Medicine, University of Pittsburgh, 3347 Forbes Avenue, Suite 220, Room 206, Pittsburgh, PA 15261, USA.
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15
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Dong V, Karvellas CJ. Using technology to assess nutritional status and optimize nutrition therapy in critically ill patients. Curr Opin Clin Nutr Metab Care 2021; 24:189-194. [PMID: 33284200 DOI: 10.1097/mco.0000000000000721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW Malnutrition is prevalent in critically ill patients and is linked to worse outcomes such as prolonged mechanical ventilation, length of intensive care unit (ICU) stay, and increased mortality. Therefore, nutritional therapy is important. However, it is often difficult to accurately identify those at high malnutrition risk and to optimize nutritional support. Different technological modalities have therefore been developed to identify patients at high nutritional risk and to guide nutritional support in an attempt to optimize outcomes. RECENT FINDINGS Computed tomography (CT), ultrasound (US), and bioelectrical impedance analysis are tools that allow assessment of lean body mass and detection of sarcopenia, which is a significant marker of poor nutrition. The use of indirect calorimetry allows the determination of resting energy expenditure to serve as a guide to providing optimal nutrition intake in ICU patients. SUMMARY By using CT, US, or bioelectrical impedance analysis, detection of sarcopenia can be undertaken in patients admitted to the ICU. This allows for an accurate picture of underlying nutritional status to help clinicians focus on nutritional support for these patients. Subsequently, indirect calorimetry can be used to guide optimal nutrition therapy and caloric intake in critically ill patients. However, whether these methods result in improved outcomes in critically ill patients remains to be validated.
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Affiliation(s)
- Victor Dong
- Interdepartmental Division of Critical Care, University of Toronto, Toronto
- Division of Gastroenterology (Liver Unit)
| | - Constantine J Karvellas
- Division of Gastroenterology (Liver Unit)
- Department of Critical Care Medicine, University of Alberta, Edmonton, Canada
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16
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Ko SJ, Cho J, Choi SM, Park YS, Lee CH, Lee SM, Yoo CG, Kim YW, Lee J. Phase Angle and Frailty Are Important Prognostic Factors in Critically Ill Medical Patients: A Prospective Cohort Study. J Nutr Health Aging 2021; 25:218-223. [PMID: 33491037 PMCID: PMC7548529 DOI: 10.1007/s12603-020-1487-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 01/27/2023]
Abstract
OBJECTIVES To investigate whether phase angle (PhA) measured by bioelectrical impedance analysis (BIA) and frailty are associated with the outcomes of critical illnesses. DESIGN A single-center prospective cohort study. SETTING Medical intensive care unit (ICU) in Seoul National University Hospital, Seoul, Republic of Korea. PARTICIPANTS 97 patients who were admitted to the medical ICU. MEASUREMENTS On admission, PhA was measured by BIA, and frailty was assessed by the Korean Modified Barthel Index (KMBI) scoring system. Patients were classified according to PhA and KMBI scores, and their impact on the outcomes of critical illnesses was evaluated. RESULTS The patients' mean age was 62.4 ± 16.4 years, and 56 of the patients (57.7%) were men. Having a high PhA above 3.5 at the time of ICU admission was associated with lower in-hospital mortality (adjusted OR 0.42, p = .042), and a shorter duration of ICU stay (5.6 days vs. 9.8 days, p = .016) compared to those with a low PhA. Other indices measured by BIA were not significantly associated with outcomes of critical illnesses. Frailty (KMBI > 60) was associated with more mechanical ventilation days (2.3 days vs. 7.1 days; p = .018). CONCLUSION Both PhA and frailty are important prognostic factors predicting the outcomes of critical illnesses. Low PhA scores were associated with increased mortality and a longer duration of ICU stay, and frailty was associated with more mechanical ventilation days.
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Affiliation(s)
- S J Ko
- Jinwoo Lee, MD, Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Seoul, 03080, Republic of Korea; E-mail:
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Myatchin I, Abraham P, Malbrain MLNG. Bio-electrical impedance analysis in critically ill patients: are we ready for prime time? J Clin Monit Comput 2020; 34:401-410. [PMID: 31808061 PMCID: PMC7223384 DOI: 10.1007/s10877-019-00439-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 11/28/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Ivan Myatchin
- Department Intensive Care Medicine, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium
- Department Anaesthesiology, Sint-Trudo Regional Hospital, Sint-Truiden, Belgium
| | - Paul Abraham
- Anaesthesiology and Critical Care Medicine Department, Hôpital Edouard-Herriot, Lyon Cedex 03, France
| | - Manu L N G Malbrain
- Department Intensive Care Medicine, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium.
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Elsene, Belgium.
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