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Lu X, Wang Z, Chen L, Wei X, Ma Y, Tu Y. Efficacy and safety of selenium or vitamin E administration alone or in combination in ICU patients: A systematic review and meta-analysis. Clin Nutr ESPEN 2023; 57:550-560. [PMID: 37739705 DOI: 10.1016/j.clnesp.2023.07.092] [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: 07/03/2023] [Revised: 07/25/2023] [Accepted: 07/29/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND Micronutrient administration that contributes to antioxidant defense has been extensively studied in critically ill patients, but consensus remains elusive. Selenium and vitamin E are two important micronutrients that have synergistic antioxidant effects. This meta-analysis aimed to assess the effect of selenium or vitamin E administration alone and the combination of both on clinical outcomes in patients hospitalized in the ICU. METHODS After electronic searches on PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), SinoMed, VIP database and Wanfang data, initially 1767 papers were found, and 30 interventional studies were included in this analysis. We assessed the risk-difference between treatment and control (standard treatment) groups by pooling available data on length of stay (ICU length of stay and hospital length of stay), mortality (ICU mortality, hospital mortality, 28-day mortality, 6-month mortality and all-cause mortality), duration of mechanical ventilation, adverse events and new infections. RESULTS By analyzing the included studies, we found no significant effect of selenium administration alone on mortality, mechanical ventilation duration, or adverse events in ICU patients. However, after excluding studies with high heterogeneity, the meta-analysis showed that selenium alone reduced the length of hospital stay (MD: -1.38; 95% CI: -2.52, -0.23; I-square: 0%). Vitamin E administration alone had no significant effect on mortality, duration of mechanical ventilation, or adverse events in ICU patients. However, after excluding studies with high heterogeneity, the meta-analysis showed that vitamin E alone could reduce the length of ICU stay (MD: -1.27; 95% CI: -1.86, -0.67; I-square: 16%). Combined administration of selenium and vitamin E had no significant effect on primary outcomes in ICU patients. CONCLUSIONS Selenium administration alone may shorten the length of hospital stay, while vitamin E alone may reduce the length of ICU stay. The putative synergistic beneficial effect of combined administration of selenium and vitamin E in ICU patients has not been observed, but more clinical studies are pending to confirm it further.
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Affiliation(s)
- Xin Lu
- Department of Pharmacy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai 200433, China
| | - Zhibin Wang
- Department of Pharmacy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai 200433, China
| | - Linlin Chen
- Department of Critical Care Medicine, School of Anesthesiology, Naval Medical University, Shanghai 200433, China
| | - Xin Wei
- Department of Clinical Pharmacy, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yabin Ma
- Department of Pharmacy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
| | - Ye Tu
- Department of Pharmacy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
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Thompson MA, Zuniga K, Sousse L, Christy R, Gurney J. The Role of Vitamin E in Thermal Burn Injuries, Infection, and Sepsis: A Review. J Burn Care Res 2022; 43:1260-1270. [PMID: 35863690 PMCID: PMC9629418 DOI: 10.1093/jbcr/irac100] [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] [Indexed: 11/25/2022]
Abstract
Thermal burn injuries are still a serious public health concern in the United States, due to the initial insult and resulting comorbidities. Burned patients are increasingly susceptible to colonization by endogenous and exogenous microorganisms after having lost skin, which acts as the primary protective barrier to environmental contaminants. Furthermore, the onset of additional pathophysiologies, specifically sepsis, becomes more likely in burned patients compared to other injuries. Despite improvements in the early care of burn patients, infections, and sepsis, these pathophysiologies remain major causes of morbidity and mortality and warrant further investigation of potential therapies. Vitamin E may be one such therapy. We aimed to identify publications of studies that evaluated the effectiveness of vitamin E as it pertains to thermal burn injuries, infection, and sepsis. Several investigations ranging from in vitro bench work to clinical studies have examined the impact on, or influence of, vitamin E in vitro, in vivo, and in the clinical setting. To the benefit of subjects it has been shown that enteral or parenteral vitamin E supplementation can prevent, mitigate, and even reverse the effects of thermal burn injuries, infection, and sepsis. Therefore, a large-scale prospective observational study to assess the potential benefits of vitamin E supplementation in patients is warranted and could result in clinical care practice paradigm changes.
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Affiliation(s)
- Marc A Thompson
- US Army Institute of Surgical Research, JBSA Ft Sam Houston, San Antonio, TX
| | - Kameel Zuniga
- US Army Institute of Surgical Research, JBSA Ft Sam Houston, San Antonio, TX
| | - Linda Sousse
- US Army Institute of Surgical Research, JBSA Ft Sam Houston, San Antonio, TX
| | - Robert Christy
- US Army Institute of Surgical Research, JBSA Ft Sam Houston, San Antonio, TX
| | - Jennifer Gurney
- Burn Center, United States Army Institute of Surgical Research, JBSA Ft. Sam Houston, TX, USA
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Gudivada KK, Kumar A, Sriram K, Baby J, Shariff M, Sampath S, Sivakoti S, Krishna B. Antioxidant micronutrient supplements for adult critically ill patients: A bayesian multiple treatment comparisons meta-analysis. Clin Nutr ESPEN 2022; 47:78-88. [PMID: 35063246 DOI: 10.1016/j.clnesp.2021.12.015] [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: 07/30/2021] [Revised: 11/26/2021] [Accepted: 12/19/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND & AIMS Antioxidant micronutrients (AxMs) have been administered to critically ill adults attempting to counteract the oxidative stress imposed during critical illness. However, results are conflicting and relative effectiveness of AxMs regimens is unknown. We conducted a Bayesian multi-treatment comparison (MTC) meta-analysis to identify the best AxM treatment regimen that will improve clinical outcomes. METHODS PubMed, EMBASE, Web of Science and Cochrane databases were searched from the inception of databases through August 2020. Randomized controlled trials (RCT) comparing AxMs supplementations with placebo among critically ill adults were included. Two authors assessed trial quality using Cochrane risk of bias tool and assessed certainty of evidence (CoE). A random effect model, non-informative priors Bayesian MTC meta-analysis using gemtc package in R version 3.6.2 was performed. AxMs treatment effect on clinical outcomes (mortality, infection rates, intensive care unit (ICU) and hospital stays and ventilator days) were represented by absolute risk differences (ARD) for dichotomous outcomes and mean differences (MD) for continuous outcomes. Prior to final analysis, we repeated the search through January 2021. RESULTS 37 RCT (4905 patients) were included with 16 direct comparisons. With respect to mortality, the ARD for "vitamin E" compared with placebo was centred at -0.19 [95%CrI: -0.54,0.16; very low CoE] and was ranked the best treatment for mortality reduction as per surface under the cumulative ranking curve (SUCRA 0.71, 95%CrI: 0.07,1.00). A combination of "selenium, zinc and copper" was ranked the best for lowest ICU stay [-9.40, 95% CrI: -20.0,1.50; low CoE]. A combination of "selenium, zinc, copper and vitamin E" was ranked the best treatment for infection risk reduction [-0.22, 95% CrI: -0.61,0.17; very low CoE]. Ventilator days were least with a combination of "selenium, zinc and manganese" [2.80, 95% CrI: -6.30,0.89; low CoE]. Hospital stay was the lowest using a combination of "selenium, zinc and copper" [-13.00, 95% CrI: -38.00,13.00; very low CoE]. There is substantial uncertainty present in the rankings due to wide and overlapping 95% CrIs of SUCRA scores for the treatments. CONCLUSIONS Studies on critically ill adult patients have suggested a possible beneficial effects of certain AxM supplementations over and above the recommended dietary allowance. However, evidence does not support their use in clinical practice due to the low confidence in the estimates. Current studies evaluating specific AxMs or their combinations are limited with small sample sizes. REGISTRATION PROSPERO, CRD42020210199. TAKE-HOME MESSAGE Evidence suggesting a potential benefit of AxMs use more than recommended doses in critically ill adults is weak, indicating that there is no justification for this practice.
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Affiliation(s)
- Kiran Kumar Gudivada
- Department of Anaesthesiology, All India Institute of Medical Sciences, Bibinagar, Hyderabad Metropolitan Region, Telangana, India.
| | - Ashish Kumar
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India; Department of Internal Medicine, Cleveland Clinic Akron General, Akron, OH, USA; Section of Cardiovascular Research, Heart, Vascular, and Thoracic Department, Cleveland Clinic Akron General, Akron, OH, USA
| | - Krishnan Sriram
- US Veterans Affairs Tele Critical Care West, Minneapolis, MN, USA
| | - Jeswin Baby
- Division of Epidemiology and Biostatistics, St John's Research Institute, Bangalore, India
| | - Mariam Shariff
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
| | - Sriram Sampath
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
| | - Sumitra Sivakoti
- Department of Pathology and Lab Medicine, All India Institute of Medical Sciences, Bibinagar, Hyderabad Metropolitan Region, Telangana 508126, India
| | - Bhuvana Krishna
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
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Samad N, Dutta S, Sodunke TE, Fairuz A, Sapkota A, Miftah ZF, Jahan I, Sharma P, Abubakar AR, Rowaiye AB, Oli AN, Charan J, Islam S, Haque M. Fat-Soluble Vitamins and the Current Global Pandemic of COVID-19: Evidence-Based Efficacy from Literature Review. J Inflamm Res 2021; 14:2091-2110. [PMID: 34045883 PMCID: PMC8149275 DOI: 10.2147/jir.s307333] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/14/2021] [Indexed: 12/15/2022] Open
Abstract
The outbreak of pneumonia caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), later named COVID-19 by the World Health Organization (WHO), was initiated at Wuhan, Hubei, China, and there was a rapid spread of novel SARS-CoV-2 and the disease COVID-19 in late 2019. The entire world is now experiencing the challenge of COVID-19 infection. However, still very few evidence-based treatment options are available for the prevention and treatment of COVID-19 disease. The present review aims to summarize the publicly available information to give a comprehensive yet balanced scientific overview of all the fat-soluble vitamins concerning their role in SARS-CoV-2 virus infection. The roles of different fat-soluble vitamins and micronutrients in combating SARS-CoV-2 infection have been recently explored in several studies. There are various hypotheses to suggest their use to minimize the severity of COVID-19 infection. These vitamins are pivotal in the maintenance and modulation of innate and cell-mediated, and antibody-mediated immune responses. The data reported in recent literature demonstrate that deficiency in one or more of these vitamins compromises the patients’ immune response and makes them more vulnerable to viral infections and perhaps worse disease prognosis. Vitamins A, D, E, and K boost the body’s defense mechanism against COVID-19 infection and specifically prevent its complications such as cytokine storm and other inflammatory processes, leading to increased morbidity and mortality overemphasis. However, more detailed randomized double-blind clinical pieces of evidence are required to define the use of these supplements in preventing or reducing the severity of the COVID-19 infection.
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Affiliation(s)
- Nandeeta Samad
- Department of Public Health, North South University, Dhaka, 1229, Bangladesh
| | - Siddhartha Dutta
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | | | - Adiba Fairuz
- Department of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Ashmita Sapkota
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | | | - Iffat Jahan
- Department of Physiology, Eastern Medical College, Cumilla, Bangladesh
| | - Paras Sharma
- Department of Pharmacognosy, BVM College of Pharmacy, Gwalior, India
| | - Abdullahi Rabiu Abubakar
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Bayero University, Kano, Nigeria
| | - Adekunle Babajide Rowaiye
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
| | - Angus Nnamdi Oli
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
| | - Jaykaran Charan
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Salequl Islam
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka, Bangladesh
| | - Mainul Haque
- Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, Malaysia
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Amino acids and vitamins status during continuous renal replacement therapy: An ancillary prospective observational study of a randomised control trial. Anaesth Crit Care Pain Med 2021; 40:100813. [PMID: 33588088 DOI: 10.1016/j.accpm.2021.100813] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/11/2020] [Accepted: 11/23/2020] [Indexed: 01/24/2023]
Abstract
BACKGROUND Continuous renal replacement therapy (CRRT) is associated with micronutrients loss. Current recommendations are to administer 1-1.5g/kg/day of proteins during CRRT. We aim to evaluate the net effect of CRRT on amino acids (AA), vitamins A and C (Vit A, Vit C) levels. METHODS This is a prospective observational study embedded within a randomised controlled trial comparing two CRRT doses in patients with septic shock. CRRT was provided in continuous veno-venous haemofiltration mode at a dose of either 35ml/kg/h or 70ml/kg/h. All patients received parenteral nutrition with standard trace elements and vitamins (protein intake 1g/kg/d). We measured serum levels of glutamine, valine and alanine as well as Vit A and Vit C upon randomisation, study day four and eight. In addition, we measured a larger panel of AA in a subset of 11 patients. RESULTS We included 30 patients (17 allocated to 70ml/kg/h and 13 to 35ml/kg/h CRRT). Before CRRT initiation, mean plasma levels of glutamine and valine, Vit A and Vit C were low. CRRT was not associated with any significant change in AA levels except for a decrease in cystein. It was associated with an increase in Vit A and a decrease in Vit C levels. CRRT dose had no impact on those nutrients blood levels. CONCLUSIONS Irrespective of dose, CRRT was associated with a decrease in cysteine and Vit C and an increase in Vit A with no significant change in other AA. Further studies should focus on lean mass wasting during CRRT.
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Abstract
Critical illness commonly presents as a systemic inflammatory process. Through this inflammation, there is an enhanced production of reactive oxygen and nitrogen species combined with marked reductions in protective plasma antioxidant concentrations. This imbalance is referred to as oxidative stress and is commonly encountered in numerous disease states in the critically ill including sepsis, trauma, acute respiratory distress syndrome, and burns. Oxidative stress can lead to cellular, tissue and organ damage as well as increased morbidity and mortality in critically ill patients. Supplementation with exogenous micronutrients to restore balance and antioxidant concentrations in critically ill patients has been considered for several decades. It is proposed that antioxidant vitamins, such as vitamins A and C, may minimize oxidative stress and improve clinical outcomes. Vitamin B formulations may play a role in curtailing lactic acidosis and are recently being evaluated as an acute phase reactant. However, few large, randomized trials specifically investigating the role of vitamin supplementation in the critically ill patient population are available. This article seeks to review recently published literature surrounding the role of supplementation of vitamins A, B and C in critically ill patients.
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Affiliation(s)
- Melissa Chudow
- Department of Pharmacotherapeutics and Clinical Research, 466516University of South Florida Taneja College of Pharmacy, Tampa, FL, USA
| | - Beatrice Adams
- Medical and Burn ICU, Department of Pharmacy Services, 7829Tampa General Hospital, Tampa, FL, USA
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Gudivada KK, Kumar A, Shariff M, Sampath S, Varma MM, Sivakoti S, Krishna B. Antioxidant micronutrient supplementation in critically ill adults: A systematic review with meta-analysis and trial sequential analysis. Clin Nutr 2020; 40:740-750. [PMID: 32723509 DOI: 10.1016/j.clnu.2020.06.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/27/2020] [Accepted: 06/28/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The role of antioxidant micronutrient (AxM) supplementation in the critically ill patients has been controversial, and recent trials have suggested a tendency to harm. Therefore, we performed a systematic review with meta-analysis and trial sequential analysis (TSA) of randomized controlled trials (RCT) to examine the effect of AxM supplementation on clinical outcomes among critically ill adults. METHODS PubMed, EMBASE, Cochrane, CINAHL, LILACS, DARE, SCOPUS, and Web of sciences databases were searched from inception to March 2019. RCTs that compared AxM supplements with placebo in adult critically ill patients and reporting mortality as an outcomes were included. Trial quality was assessed using updated cochrane risk of bias (RoB-II) tool. Primary outcome was all-cause mortality. Secondary outcomes were 28-day mortality, intensive care unit (ICU) and hospital length of stay (LOS), ventilator days and infection between the two groups. Outcomes were summarised using random-effects estimators. Quality of evidence (QOE) was rated using Grading of Recommendations, Assessment, Development and Evaluation. Prior to final analysis, we repeated the search through September 2019. R version 3.6.2 and STATA version 13 were used for all statistical analyses. RESULTS Pooled analysis of 34 trials with 4678 patients revealed that AxM supplementation was associated with possible reduction in all-cause mortality (relative risk [RR], 0.89 [95%CI 0.79 to 0.99], TSA adjusted CI 0.77 to 1.03; Low QOE). Fragility index and number needed to treat were 1 and 41, respectively. Eight studies with low RoB (RR, 1.08; 95%CI 0.95 to 1.23; TSA CI, 0.64 to 1.82; moderate QOE) did not show mortality reduction with AxM supplementation. SECONDARY OUTCOMES ICU LOS (weighted mean difference [WMD], -0.84; 95%CI -1.50 to -0.18; moderate QOE), hospitalization days (WMD, -2.83; 95%CI -3.91to -1.75; low QOE) and ventilator days (WMD, -1.87; 95%CI -3.60 to -0.14; very low QOE) showed a statistically significant benefit with AxM supplementation. In meta-regression analysis, neither the duration of AxM therapy nor the dosage of selenium, which was the most widely studied AxM, reported an association with mortality. CONCLUSION Although AxM supplementation was associated with possible reduction in all-cause mortality, results from the TSA and studies with low RoB showing null effect suggest that the evidence of benefit is questionable. Secondary outcomes attained statistically significant benefit with AxM supplements, but the certainity of evidence was low. To summarize, current evidence does not justify administration of AxM in critically ill patients. REGISTRATION PROSPERO, CRD42019125898.
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Affiliation(s)
- Kiran Kumar Gudivada
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India.
| | - Ashish Kumar
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India
| | - Mariam Shariff
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India
| | - Sriram Sampath
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India
| | - Manu Mk Varma
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India
| | - Sumitra Sivakoti
- Department of Neuropathology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, 560029, India; Department of Pathology, All India Institute of Medical Sciences (AIIMS), Bibinagar, Telangana, 508126, India
| | - Bhuvana Krishna
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, 560034, India
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Wang Y, Lin H, Lin BW, Lin JD. Effects of different ascorbic acid doses on the mortality of critically ill patients: a meta-analysis. Ann Intensive Care 2019; 9:58. [PMID: 31111241 PMCID: PMC6527630 DOI: 10.1186/s13613-019-0532-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/13/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Low levels of ascorbic acid (AA) have been detected in critically ill patients in which AA supplementation leads to promising outcomes. However, the ability of AA to reduce mortality in critically ill patients remains controversial. In this study, we have performed a meta-analysis to evaluate the effects of AA dose on the mortality of critically ill adults. METHODS Electronic databases were searched for trials in which AA had been intravenously administered to critically ill patients regardless of the dose or the co-administration of antioxidant agents. The predefined primary outcome included all-cause mortality at final follow-up. RESULTS The included trials enrolled a total of 1210 patients. Intravenous (IV) AA doses of 3-10 g/d reduced the mortality of critically ill patients (OR 0.25; 95% CI (0.14-0.46); p < 0.001; I2 = 0.0%), while low (< 3 g/d) and high AA doses (≥ 10 g/d) had no effect (OR 1.44; 95% CI (0.79-2.61); p = 0.234; I2 = 0.0% versus OR 1.12; 95% CI (0.62-2.03); p = 0.700; I2 = 0.0%). AA was associated with a decreased duration of vasopressor support and mechanical ventilation, but did not influence fluid requirement or urine output during the first 24 h of admission. The number of patients suffering from acute kidney injury and the length of intensive care unit or hospital stays were also unaffected by the AA. CONCLUSION Intravenous AA reduces the duration of vasopressor support and mechanical ventilation; 3-10 g AA results in lower overall mortality rates. Given the limitations of the primary literature, further studies are required to fully clarify the effectiveness of AA during the management of critically ill patients.
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Affiliation(s)
- Ying Wang
- Clinical School, First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Huan Lin
- Shool of Mathematics and Statistics, University of New South Wales, Sydney, Australia
| | - Bing-wen Lin
- Department of Intensive Care Unit, First Affiliated Hospital of Fujian Medical University, Chazhong Road, Fuzhou, Fujian Province China
| | - Jian-dong Lin
- Department of Intensive Care Unit, First Affiliated Hospital of Fujian Medical University, Chazhong Road, Fuzhou, Fujian Province China
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Langlois PL, Manzanares W, Adhikari NKJ, Lamontagne F, Stoppe C, Hill A, Heyland DK. Vitamin C Administration to the Critically Ill: A Systematic Review and Meta-Analysis. JPEN J Parenter Enteral Nutr 2018; 43:335-346. [PMID: 30452091 DOI: 10.1002/jpen.1471] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/09/2018] [Indexed: 12/12/2022]
Abstract
Vitamin C, an enzyme cofactor and antioxidant, could hasten the resolution of inflammation, oxidative stress, and microvascular dysfunction. While observational studies have demonstrated that critical illness is associated with low levels of vitamin C, randomized controlled trials (RCTs) of vitamin C, alone or in combination with other antioxidants, have yielded contradicting results. We searched MEDLINE, EMBASE, CINAHL, and the Cochrane Central Register of Controlled Trials (inception to December 2017) for RCTs comparing vitamin C, by enteral or parenteral routes, with placebo or none, in intensive care unit (ICU) patients. Two independent reviewers assessed study eligibility without language restrictions and abstracted data. Overall mortality was the primary outcome; secondary outcomes were incident infections, ICU length of stay (LOS), hospital LOS, and duration of mechanical ventilation (MV). We prespecified 5 subgroups hypothesized to benefit more from vitamin C. Eleven randomized trials were included. When 9 RCTs (n = 1322) reporting mortality were pooled, vitamin C was not associated with reduced risk of mortality (risk ratio [RR] 0.72, 95% confidence interval [CI]: 0.43-1.20, P = .21). No effect was found on infections, ICU or hospital LOS, or duration of MV. In multiple subgroup comparison, no statistically significant subgroup effects were observed. However, we did observe a tendency towards a mortality reduction (RR 0.21; 95% CI: 0.04-1.05; P = .06) when intravenous high-dose vitamin C monotherapy was administered. Current evidence does not support supplementing critically ill patients with vitamin C. A moderately large treatment effect may exist, but further studies, particularly of monotherapy administration, are warranted.
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Affiliation(s)
- Pascal L Langlois
- Department of Anesthesiology and Reanimation, Faculty of Medicine and Health Sciences, Sherbrooke University Hospital, Sherbrooke, Québec, Canada
| | - William Manzanares
- Department of Critical Care, Intensive Care Unit, University Hospital, Faculty of Medicine, Universidad de la Republica, Montevideo, Uruguay
| | - Neill K J Adhikari
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - François Lamontagne
- Department of Intensive Care Medicine, Faculty of Medicine and Health Sciences, Sherbrooke University Hospital, Sherbrooke, Québec, Canada
| | - Christian Stoppe
- Department of Intensive Care Medicine, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Aileen Hill
- Department of Intensive Care Medicine, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Daren K Heyland
- Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Ontario, Canada and Department of Critical Care, Queen's University, Kingston, Ontario, Canada
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10
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L Langlois P, Lamontagne F. Vitamin C for the critically ill: Is the evidence strong enough? Nutrition 2018; 60:185-190. [PMID: 30612038 DOI: 10.1016/j.nut.2018.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/03/2018] [Accepted: 10/07/2018] [Indexed: 12/28/2022]
Abstract
Vitamin C exhibits interesting properties in the context of critical illness, with benefits described in neurologic, cardiovascular, renal, and hematologic systems, both in in vitro and in animal models. Through direct effects on bacterial replication, immunomodulation, and antioxidant reserve of the organism, vitamin C directly affects the pathophysiological process of sepsis, trauma, burn, and systemic inflammation. Even if several observational trials have linked vitamin C deficiency to worse outcomes, the evidence is not such as to provide us with a distinction between causality effects or simple epiphenomenon, and the current focus is on interventional trials. Pharmacokinetic data suggest that a minimal supplementation of 3 g/d intravenously is required to restore normal serum values in critically ill patients with known deficiency. According to these data, only five trials, including a retrospective analysis, studied pharmacologic dose: three as an antioxidant cocktail and two as monotherapy. The largest trial, conducted in 2002, reported reduced incidence of multiorgan failure and duration of mechanical ventilation. Recently a retrospective analysis reported impressive results after administration of vitamin C, thiamine, and hydrocortisone. The two most recent trials reported improved clinical outcomes, including improved mortality, but contained significant methodological limitations. A recent systematic review did not find clinical benefits with the most-studied low-dose oral supplementation, potentially because of suboptimal or insufficient repletion. Current guidelines do not support the administration of high-dose vitamin C in critically ill patients. Future larger trials are required to support any therapy, but the low cost and safety profile can justify supplementation in the meantime. Metabolomics study will further help understand biological effect.
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Affiliation(s)
- Pascal L Langlois
- Department of Anaesthesiology and Reanimation, Faculty of Medicine and Health Sciences, Sherbrooke University Hospital, Sherbrooke, Québec, Canada.
| | - François Lamontagne
- Department of Intensive Care Medicine, Faculty of Medicine and Health Sciences, Sherbrooke University Hospital, Sherbrooke, Québec, Canada
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11
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Zhang M, Jativa DF. Vitamin C supplementation in the critically ill: A systematic review and meta-analysis. SAGE Open Med 2018; 6:2050312118807615. [PMID: 30364374 PMCID: PMC6196621 DOI: 10.1177/2050312118807615] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/21/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Low plasma levels of vitamin C are associated with adverse outcomes, including increased mortality, in critically ill patients. Several trials have suggested that the administration of intravenous vitamin C in this setting may have beneficial effects, such as reducing the incidence of organ failure and improving survival. However, these studies have generally involved combination therapies consisting of vitamin C along with other antioxidants, confounding the effects of vitamin C alone. The primary objective of this meta-analysis is to investigate the effects of isolated intravenous supplementation of vitamin C in adults with critical illness. METHODS A database search was conducted for studies on the use of intravenous vitamin C in adult patients with critical illness. The primary outcome assessed was mortality at the longest follow-up time available. Secondary outcomes were the duration of mechanical ventilation, duration of vasopressor support, fluid requirements, and urine output in the first 24 h of intensive care unit admission. RESULTS Five studies (four randomized controlled trials and one retrospective review) enrolling a total of 142 patients were included in this meta-analysis. Compared with controls, the administration of intravenous vitamin C was associated with a decreased need for vasopressor support (standardized mean difference -0.71; 95% confidence interval (-1.16 to -0.26); p = 0.002) and decreased duration of mechanical ventilation (standardized mean difference -0.5; 95% confidence interval (-0.93 to -0.06); p = 0.03), but no difference was found in mortality (odds ratio 0.76; 95% confidence interval (0.27 to 2.16); p = 0.6). Trends were also noted toward decreased fluid requirements and increased urine output. No adverse effects were reported. CONCLUSION The administration of intravenous vitamin C may lead to vasopressor sparing effects and a reduced need for mechanical ventilation in the critically ill, without affecting overall mortality. However, these results should be interpreted in light of the limitations of the primary literature and should serve as a preview of upcoming trials in this area.
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Affiliation(s)
- Michael Zhang
- Department of Medicine, VA Medical Center, Cleveland, OH, USA
| | - David F Jativa
- Department of Medicine, Aventura Hospital & Medical Center, Aventura, FL, USA
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Efficacy of commercial formulas in comparison with home-made formulas for enteral feeding: A critical review. Med J Islam Repub Iran 2017; 31:55. [PMID: 29445684 PMCID: PMC5804464 DOI: 10.14196/mjiri.31.55] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Indexed: 01/04/2023] Open
Abstract
Background: In several disease conditions, patients must inevitably be nourished by enteral feeding (EF). Though in many countries,
commercial formulas are routinely used for EF, in Iran still home-made formulas are commonly employed as commercial formulas
are not covered by insurance. This may pose patients to malnutrition and bring about further costs. The aim of this study was to
evaluate the efficacy of EF commercial formulas in comparison with home-made formulas and thus to make further evidence for insurance
policy-making
Methods: Medline, Cochrane, Embass and Center for Review & Dissemination (CRD) as well as IranDoc and SID databases were
searched. Keywords included formula, ICU, and enteral nutrition or tube feeding. No clinical trial study on the efficacy of EF formulas
was found. Therefore, the compositions of available formulas and their cost-effectiveness were evaluated based on the clinical guidelines
of scientific bodies such as American Society for Parenteral and Enteral Nutrition (ASPEN), European Society for Parenteral and
Enteral Nutrition (ESPEN) and relative articles available in PubMed. In addition, the expert opinions were also taken into consideration.
Results: Domestic commercial formulas seemed to less merit dietary recommended intakes, i.e. the amount of some nutrients were
much higher, and some others were much lower than the recommended values. The amount of several micronutrients including vitamins
B1, B6, C, D and K, as well as iron, calcium and magnesium were not sufficient to meet the body needs in most commercial
formulas upon receiving 2000 kilocalories and less.
Conclusion: Clinical studies on the efficacy of commercial formulas in comparison with home-made formulas are needed. Meanwhile,
making suitable conditions for increasing the diversity of artificial nutrition products in the market would help clinical nutritionists
to make better choices according to their patients conditions and to reduce the costs, as well.
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13
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Marshall B, Thomas R. Trace Element and Vitamin Supplementation in Critical Illness. J Intensive Care Soc 2016. [DOI: 10.1177/175114370700800309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Ben Marshall
- ST1 Anaesthetics Intensive Care Unit Royal Hampshire County Hospital Romsey Road Winchester SO22 5DG
| | - Richard Thomas
- Consultant in Anaesthetics & Intensive Care Medicine Royal Hampshire County Hospital Romsey Road Winchester SO22 5DG
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14
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Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient: Society of Critical Care Medicine (SCCM) and American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.). Crit Care Med 2016; 44:390-438. [PMID: 26771786 DOI: 10.1097/ccm.0000000000001525] [Citation(s) in RCA: 362] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 1-- #] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 and 1880=1880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient: Society of Critical Care Medicine (SCCM) and American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.). JPEN J Parenter Enteral Nutr 2016; 40:159-211. [PMID: 26773077 DOI: 10.1177/0148607115621863] [Citation(s) in RCA: 1616] [Impact Index Per Article: 202.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Stephen A McClave
- Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Beth E Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 8029-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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19
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 1-- gadu] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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20
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 8029-- #] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 1-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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22
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McClave SA, Taylor BE, Martindale RG, Warren MM, Johnson DR, Braunschweig C, McCarthy MS, Davanos E, Rice TW, Cresci GA, Gervasio JM, Sacks GS, Roberts PR, Compher C. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr 2016. [DOI: 10.1177/0148607115621863 order by 8029-- awyx] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Beth E. Taylor
- Nutrition Support Specialist, Barnes Jewish Hospital, St Louis, Missouri
| | - Robert G. Martindale
- Chief Division of General Surgery, Oregon Health and Science University, Portland, Oregon
| | - Malissa M. Warren
- Critical Care Dietitian, Portland VA Medical Center, Portland, Oregon
| | - Debbie R. Johnson
- Clinical Nurse Specialist: Wound, Skin, Ostomy, UW Health University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Carol Braunschweig
- Professor, Department of Kinesiology and Nutrition and Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Mary S. McCarthy
- Senior Nurse Scientist, Center for Nursing Science and Clinical Inquiry, Madigan Healthcare System, Tacoma, Washington
| | - Evangelia Davanos
- Pharmacotherapy Specialist, Nutrition Support, The Brooklyn Hospital Center, Brooklyn, New York
| | - Todd W. Rice
- Assistant Professor of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Gail A. Cresci
- Project Research Staff, Digestive Disease Institute, Gastroenterology and Pathobiology, Cleveland, Ohio
| | - Jane M. Gervasio
- Chair and Professor of Pharmacy Practice, Butler University College of Pharmacy and Health Science, Indianapolis, Indiana
| | - Gordon S. Sacks
- Professor and Head, Department of Pharmacy Practice, Harrison School of Pharmacy, Auburn University, Auburn, Alabama
| | - Pamela R. Roberts
- Professor and Vice Chair, Division Chief of Critical Care Medicine, Director of Research John A. Moffitt Endowed Chair, Department of Anesthesiology, Oklahoma City, Oklahoma
| | - Charlene Compher
- Professor of Nutrition Science, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
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Howe KP, Clochesy JM, Goldstein LS, Owen H. Mechanical Ventilation Antioxidant Trial. Am J Crit Care 2015; 24:440-5. [PMID: 26330437 DOI: 10.4037/ajcc2015335] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Many patients each year require prolonged mechanical ventilation. Inflammatory processes may prevent successful weaning, and evidence indicates that mechanical ventilation induces oxidative stress in the diaphragm, resulting in atrophy and contractile dysfunction of diaphragmatic myofibers. Antioxidant supplementation might mitigate the harmful effects of the oxidative stress induced by mechanical ventilation. OBJECTIVE To test the clinical effectiveness of antioxidant supplementation in reducing the duration of mechanical ventilation. METHODS A randomized, prospective, placebo-controlled double-blind design was used to test whether enterally administered antioxidant supplementation would decrease the duration of mechanical ventilation, all-cause mortality, and length of stay in the intensive care unit and hospital. Patients received vitamin C 1000 mg plus vitamin E 1000 IU, vitamin C 1000 mg plus vitamin E 1000 IU plus N-acetylcysteine 400 mg, or placebo solution as a bolus injection via their enteral feeding tube every 8 hours. RESULTS Clinical and statistically significant differences in duration of mechanical ventilation were seen among the 3 groups (Mantel-Cox log rank statistic = 5.69, df = 1, P = .017). The 3 groups did not differ significantly in all-cause mortality during hospitalization or in the length of stay in the intensive care unit or hospital. CONCLUSIONS Enteral administration of antioxidants is a simple, safe, inexpensive, and effective intervention that decreases the duration of mechanical ventilation in critically ill adults.
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Affiliation(s)
- Kimberly P. Howe
- Kimberly P. Howe is corporate director of academic affairs, Northside Medical Center, Youngstown, Ohio. John M. Clochesy is a professor, University of South Florida College of Nursing, Tampa, Florida. Lawrence S. Goldstein is medical director of the medical intensive care unit, Northside Medical Center, and an associate professor at Northeastern Ohio Universities College of Medicine, Rootstown, Ohio. Hugh Owen is a pharmacist at Northside Medical Center
| | - John M. Clochesy
- Kimberly P. Howe is corporate director of academic affairs, Northside Medical Center, Youngstown, Ohio. John M. Clochesy is a professor, University of South Florida College of Nursing, Tampa, Florida. Lawrence S. Goldstein is medical director of the medical intensive care unit, Northside Medical Center, and an associate professor at Northeastern Ohio Universities College of Medicine, Rootstown, Ohio. Hugh Owen is a pharmacist at Northside Medical Center
| | - Lawrence S. Goldstein
- Kimberly P. Howe is corporate director of academic affairs, Northside Medical Center, Youngstown, Ohio. John M. Clochesy is a professor, University of South Florida College of Nursing, Tampa, Florida. Lawrence S. Goldstein is medical director of the medical intensive care unit, Northside Medical Center, and an associate professor at Northeastern Ohio Universities College of Medicine, Rootstown, Ohio. Hugh Owen is a pharmacist at Northside Medical Center
| | - Hugh Owen
- Kimberly P. Howe is corporate director of academic affairs, Northside Medical Center, Youngstown, Ohio. John M. Clochesy is a professor, University of South Florida College of Nursing, Tampa, Florida. Lawrence S. Goldstein is medical director of the medical intensive care unit, Northside Medical Center, and an associate professor at Northeastern Ohio Universities College of Medicine, Rootstown, Ohio. Hugh Owen is a pharmacist at Northside Medical Center
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Parish M, Valiyi F, Hamishehkar H, Sanaie S, Asghari Jafarabadi M, Golzari SE, Mahmoodpoor A. The Effect of Omega-3 Fatty Acids on ARDS: A Randomized Double-Blind Study. Adv Pharm Bull 2014; 4:555-61. [PMID: 25671189 DOI: 10.5681/apb.2014.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/11/2014] [Accepted: 08/13/2014] [Indexed: 11/17/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate the effect of an enteral nutrition diet, enriched with omega-3 fatty acids because of its anti-inflammatory effects on treatment of patients with mild to moderate ARDS. METHODS This randomized clinical trial was performed in two ICUs of Tabriz University of Medical Sciences from Jun 2011 until Sep 2013 in north west of Iran. Fifty-eight patients with mild to moderate ARDS were enroled in this clinical trial. All patients received standard treatment for ARDS based on ARDS network trial. In intervention group, patients received 6 soft-gels of omega-3/day in addition to the standard treatment. RESULTS Tidal volume, PEEP, pH, PaO2/FiO2 , SaO2, P platue and PaCO2 on the 7(th) and 14(th) days didn't have significant difference between two groups. Indices of lung mechanics (Resistance, Compliance) had significant difference between the groups on the 14(th) day. Pao2 had significant difference between two groups on both 7(th) and 14(th) days. Trend of PaO2 changes during the study period in two groups were significant. We showed that adjusted mortality rate did not have significant difference between two groups. CONCLUSION It seems that adding omega-3 fatty acids to enteral diet of patients with ARDS has positive results in term of ventilator free days, oxygenation, lung mechanic indices; however, we need more multi center trials with large sample size and different doses of omega-3 fatty acids for their routine usage as an adjuant for ARDS treatment.
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Affiliation(s)
- Masoud Parish
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farnaz Valiyi
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Hamishehkar
- Applied Drug Research Center, Department of Clinical Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sarvin Sanaie
- Tuberculosis & Lung Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Samad Ej Golzari
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ata Mahmoodpoor
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Biasi F, Leonarduzzi G, Oteiza PI, Poli G. Inflammatory bowel disease: mechanisms, redox considerations, and therapeutic targets. Antioxid Redox Signal 2013; 19:1711-47. [PMID: 23305298 PMCID: PMC3809610 DOI: 10.1089/ars.2012.4530] [Citation(s) in RCA: 188] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oxidative stress is thought to play a key role in the development of intestinal damage in inflammatory bowel disease (IBD), because of its primary involvement in intestinal cells' aberrant immune and inflammatory responses to dietary antigens and to the commensal bacteria. During the active disease phase, activated leukocytes generate not only a wide spectrum of pro-inflammatory cytokines, but also excess oxidative reactions, which markedly alter the redox equilibrium within the gut mucosa, and maintain inflammation by inducing redox-sensitive signaling pathways and transcription factors. Moreover, several inflammatory molecules generate further oxidation products, leading to a self-sustaining and auto-amplifying vicious circle, which eventually impairs the gut barrier. The current treatment of IBD consists of long-term conventional anti-inflammatory therapy and often leads to drug refractoriness or intolerance, limiting patients' quality of life. Immune modulators or anti-tumor necrosis factor α antibodies have recently been used, but all carry the risk of significant side effects and a poor treatment response. Recent developments in molecular medicine point to the possibility of treating the oxidative stress associated with IBD, by designing a proper supplementation of specific lipids to induce local production of anti-inflammatory derivatives, as well as by developing biological therapies that target selective molecules (i.e., nuclear factor-κB, NADPH oxidase, prohibitins, or inflammasomes) involved in redox signaling. The clinical significance of oxidative stress in IBD is now becoming clear, and may soon lead to important new therapeutic options to lessen intestinal damage in this disease.
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Affiliation(s)
- Fiorella Biasi
- 1 Department of Clinical and Biological Sciences, University of Turin , San Luigi Gonzaga Hospital, Orbassano, Italy
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Krenz M, Baines C, Kalogeris T, Korthuis R. Cell Survival Programs and Ischemia/Reperfusion: Hormesis, Preconditioning, and Cardioprotection. ACTA ACUST UNITED AC 2013. [DOI: 10.4199/c00090ed1v01y201309isp044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Manzanares W, Dhaliwal R, Jiang X, Murch L, Heyland DK. Antioxidant micronutrients in the critically ill: a systematic review and meta-analysis. Crit Care 2012; 16:R66. [PMID: 22534505 PMCID: PMC3681395 DOI: 10.1186/cc11316] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/13/2012] [Accepted: 04/25/2012] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Critical illness is characterized by oxidative stress, which is a major promoter of systemic inflammation and organ failure due to excessive free radical production, depletion of antioxidant defenses, or both. We hypothesized that exogenous supplementation of trace elements and vitamins could restore antioxidant status, improving clinical outcomes. METHODS We searched computerized databases, reference lists of pertinent articles and personal files from 1980 to 2011. We included randomized controlled trials (RCTs) conducted in critically ill adult patients that evaluated relevant clinical outcomes with antioxidant micronutrients (vitamins and trace elements) supplementation versus placebo. RESULTS A total of 21 RCTs met inclusion criteria. When the results of these studies were statistically aggregated (n = 20), combined antioxidants were associated with a significant reduction in mortality (risk ratio (RR) = 0.82, 95% confidence interval (CI) 0.72 to 0.93, P = 0.002); a significant reduction in duration of mechanical ventilation (weighed mean difference in days = -0.67, 95% CI -1.22 to -0.13, P = 0.02); a trend towards a reduction in infections (RR= 0.88, 95% CI 0.76 to 1.02, P = 0.08); and no overall effect on ICU or hospital length of stay (LOS). Furthermore, antioxidants were associated with a significant reduction in overall mortality among patients with higher risk of death (>10% mortality in control group) (RR 0.79, 95% CI 0.68 to 0.92, P = 0.003) whereas there was no significant effect observed for trials of patients with a lower mortality in the control group (RR = 1.14, 95% 0.72 to 1.82, P = 0.57). Trials using more than 500 μg per day of selenium showed a trend towards a lower mortality (RR = 0.80, 95% CI 0.63 to 1.02, P = 0.07) whereas trials using doses lower than 500 μg had no effect on mortality (RR 0.94, 95% CI 0.67 to 1.33, P = 0.75). CONCLUSIONS Supplementation with high dose trace elements and vitamins may improve outcomes of critically ill patients, particularly those at high risk of death.
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Affiliation(s)
- William Manzanares
- Intensive Care Unit, Department of Critical Care Medicine, Universidad de la República, Hospital de Clínicas (University Hospital), Faculty of Medicine, Avda Italia s/n 14th Floor, Montevideo, 11600, Uruguay
| | - Rupinder Dhaliwal
- Clinical Evaluation Research Unit, Kingston General Hospital, Angada 4, Kingston General Hospital, 76 Stuart Street, Kingston ON, K7L 2V7, Canada
| | - Xuran Jiang
- Clinical Evaluation Research Unit, Kingston General Hospital, Angada 4, Kingston General Hospital, 76 Stuart Street, Kingston ON, K7L 2V7, Canada
| | - Lauren Murch
- Clinical Evaluation Research Unit, Kingston General Hospital, Angada 4, Kingston General Hospital, 76 Stuart Street, Kingston ON, K7L 2V7, Canada
| | - Daren K Heyland
- Clinical Evaluation Research Unit, Kingston General Hospital, Angada 4, Kingston General Hospital, 76 Stuart Street, Kingston ON, K7L 2V7, Canada
- Department of Medicine, Queen's University Kingston, Angada 4, Kingston General Hospital, 76 Stuart Street, Kingston, Ontario K7L 2V7, Canada
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Nagano T, Fujita H, Tanaka T, Matono S, Murata K, Ishibashi N, Shirouzu K, Yanagawa T. Randomized controlled trial comparing antioxidant-enriched enteral nutrition with immune-enhancing enteral nutrition after esophagectomy for cancer: a pilot study. Surg Today 2012; 43:1240-9. [PMID: 23224142 DOI: 10.1007/s00595-012-0424-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 08/05/2012] [Indexed: 01/16/2023]
Abstract
PURPOSE The objective of this study was to compare the effects of two types of enteral supplements, an antioxidant-enriched enteral nutrition (AeEN) and an immune-enhancing enteral nutrition (IeEN), on the nutrition, immunoinflammatory response, antioxidant capacity and clinical outcomes in patients after esophagectomy for cancer. METHODS Patients (n = 20) undergoing esophagectomy for cancer were randomized in this single-center, open-label study. Two types of enteral supplements were used for 5 days before surgery and 7 days after surgery. The circulating levels of nutritional markers, immunoinflammatory markers, oxidative stress markers, and the antioxidant capacity were compared throughout the perioperative period, and the patients' clinical outcomes were also compared. RESULTS The circulating levels of nutritional markers decreased after surgery, but the changes were not significantly different between the AeEN group and the IeEN group throughout the perioperative period. Surgery increased the immunoinflammatory markers, and the levels were not significantly different between the groups after surgery. Surgery also increased the levels of oxidative stress markers, but there were no significant differences between the groups throughout the study period. CONCLUSIONS The results of this pilot study suggest that AeEN and IeEN have a similar effect on nutrition, the immunoinflammatory response, antioxidant capacity and clinical outcomes after esophagectomy for cancer. These findings, therefore, warrant further studies on a larger scale.
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Affiliation(s)
- Takeshi Nagano
- Department of Surgery, Kurume University School of Medicine, Asahi-machi 67, Kurume, Fukuoka, 830-0011, Japan,
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Yassin LS, Fukui C, Pereira PCD, Olandoski M, Aveles PR, Pinto SC, Resnauer C, Nakao LS, Morimoto II. Efeito da administração de uma dieta enteral com antioxidantes sobre as concentrações plasmáticas de tióis totais, carbonilas de proteínas e malondialdeído após acidente vascular cerebral. REV NUTR 2012. [DOI: 10.1590/s1415-52732012000200007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJETIVO: Avaliar o efeito da administração de uma dieta enteral industrializada com antioxidantes sobre as concentrações plasmáticas de tióis totais, carbonilas de proteínas e malondialdeído em pacientes após acidente vascular cerebral. MÉTODOS: A amostra foi constituída de 14 pacientes de um hospital geral que iniciaram nutrição enteral 48 horas após o evento. Falência múltipla, insuficiência hepática, obesidade mórbida e diabetes Mellitus associados foram critérios de exclusão. A dieta industrializada ofertada por gotejamento contínuo, com uso de bombas infusoras, continha mix de carotenoides, vitaminas C, E e minerais Se, Zn e Cu em sua formulação. As amostras de sangue foram coletadas antes do início da administração da dieta e após cinco dias de início da dieta enteral, somente de pacientes que tivessem recebido o volume necessário para completar o gasto energético total. Tióis plasmáticos e carbonilas de proteína foram determinados por meio do Reagente de Ellman e pela reação com dinitrofenilhidrazina respectivamente. O malondialdeído foi obtido pela determinação de substâncias reativas do ácido tiobarbitúrico. RESULTADOS: A média de idade foi M=70,3, DP=14,1 anos. Todos receberam acima de 100% da Dietary Reference Intakes para nutrientes antioxidantes, que não ultrapassaram os limites superiores toleráveis de ingestão. Não houve alteração da concentração de tióis, mas houve aumento da formação de carbonilas de proteínas (p=0,034). Nos pacientes entubados, esse marcador mostrou-se significativamente maior (p=0,048) após administração da dieta. Não houve diferença nas concentrações de malondialdeído após a oferta de antioxidantes dietéticos. CONCLUSÃO: A análise de biomarcadores não demonstrou redução do estresse oxidativo após administração de dieta enteral industrializada com antioxidantes.
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Visser J, Labadarios D, Blaauw R. Micronutrient supplementation for critically ill adults: a systematic review and meta-analysis. Nutrition 2011; 27:745-58. [PMID: 21679878 DOI: 10.1016/j.nut.2010.12.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 12/05/2010] [Accepted: 12/05/2010] [Indexed: 01/27/2023]
Abstract
OBJECTIVE This systematic review assessed the effects of micronutrient supplementation on adults recovering from critical illness. Primary outcomes included clinical endpoints (mortality, infectious complications, length of intensive care unit and of hospital stay). Secondary outcomes included descriptions of practice issues, micronutrient status, morbidity, course of the acute-phase response, and oxidative stress. METHODS Electronic bibliographic databases, bibliographies of retrieved articles, and personal files were searched and reviewed. Randomized controlled trials (RCTs) of micronutrient supplementation in adult critically ill patients administered enterally and/or parenterally in addition to their routine care were included. Two authors independently extracted data and assessed trial quality. The random-effects model was used to estimate overall relative risk (RR)/mean difference and effect size. P<0.05 was considered statistically significant. RESULTS Fifteen (n=1714) and 18 (n=1849) RCTs were included for the primary and secondary objectives, respectively. Fourteen trials (n=1468) showed a statistically significant decrease in overall mortality (RR 0.78, 95% confidence interval 0.67-0.90, I2=0%, P=0.0009). Six RCTs (n=1194) indicated a statistically significant decrease in 28-d mortality (RR 0.75, 95% confidence interval 0.63-0.88, I2=0%, P=0.0006). Micronutrient supplementation was not associated with a decrease in infectious complications, length of intensive care unit, or length of hospital stay. In subgroup analyses, a sensitivity analysis of combined micronutrients indicated a significant decrease in mortality (RR 0.69, 95% confidence interval 0.54-0.90, I2=2%, P=0.006). The secondary outcomes confirmed that timing, duration, and dosing appear to be key factors to ensure optimal clinical benefit. CONCLUSION This review does suggest a potential benefit of micronutrient supplementation in critically ill adults by possibly being associated with a decrease in mortality.
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Affiliation(s)
- Janicke Visser
- Division of Human Nutrition, Stellenbosch University and Tygerberg Academic Hospital, South Africa.
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Grau-Carmona T, Morán-García V, García-de-Lorenzo A, Heras-de-la-Calle G, Quesada-Bellver B, López-Martínez J, González-Fernández C, Montejo-González JC, Blesa-Malpica A, Albert-Bonamusa I, Bonet-Saris A, Herrero-Meseguer JI, Mesejo A, Acosta J. Effect of an enteral diet enriched with eicosapentaenoic acid, gamma-linolenic acid and anti-oxidants on the outcome of mechanically ventilated, critically ill, septic patients. Clin Nutr 2011; 30:578-84. [DOI: 10.1016/j.clnu.2011.03.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 12/30/2010] [Accepted: 03/11/2011] [Indexed: 10/18/2022]
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Thébault S, Deniel N, Galland A, Lecleire S, Charlionet R, Coëffier M, Tron F, Vaudry D, Déchelotte P. Human duodenal proteome modulations by glutamine and antioxidants. Proteomics Clin Appl 2010; 4:325-36. [DOI: 10.1002/prca.200800175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 09/19/2009] [Accepted: 11/03/2009] [Indexed: 12/22/2022]
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Corcoran TB, O'Neill MP, Webb SAR, Ho KM. Inflammation, vitamin deficiencies and organ failure in critically ill patients. Anaesth Intensive Care 2010; 37:740-7. [PMID: 19775037 DOI: 10.1177/0310057x0903700510] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
It is unknown whether biochemical vitamin deficiencies in critical illness are associated with severity of illness, organ dysfunction, inflammation or mortality. This nested cohort study recruited 98 patients admitted as emergencies to the intensive care unit, who had a stay of greater than 48 hours. Patient data were prospectively collected. Within the first 48 hours of admission, concentrations of C-reactive protein, vitamins A, E, B1, B12 and folate were measured on arterial blood. These measures were then repeated at least once during the later (> 48 hours) period of their stay. Seventy patients (71%) had completed vitamin studies eligible for inclusion in the analysis. Ten patients died (14.3%) during their hospital stay and mortality was associated with age, admission source and severity of illness scores. Vitamin B12 concentration was weakly associated with C-reactive protein concentrations on admission to the intensive care unit (r on days one and two = 0.4 [P = 0.002], 0.36 [P = 0.04], respectively) and with the Sequential Organ Failure Assessment score between days two and four (Spearman's r = 0.361 [P = 0.04], 0.42 [P = 0.02] and 0.48 [P = 0.02], respectively). Vitamin A concentration was weakly associated with the C-reactive protein concentrations on days one and five (Spearman's r = -0.5 [P = 0.001], -0.4 [P = 0.03], respectively). Change in deficiency status of any of the vitamins over time in the first week of intensive care admission did not appear to influence mortality. We conclude that while weak correlations were identified between vitamins A and B12 and C-reactive protein and Sequential Organ Failure Assessment scores, the importance of these associations and their relationship to hospital mortality remain to be determined.
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Affiliation(s)
- T B Corcoran
- Department of Intensive Care Medicine, Royal Perth Hospital, Perth, Western Australia
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Corcoran TB, O'Neill MA, Webb SAR, Ho KM. Prevalence of Vitamin Deficiencies on Admission: Relationship to Hospital Mortality in Critically Ill Patients. Anaesth Intensive Care 2009; 37:254-60. [DOI: 10.1177/0310057x0903700215] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Vitamin deficiency is believed to be common in critical illness. Water soluble and antioxidant vitamins are those most frequently used for supplementation in these patients. There are no data to confirm the prevalence of vitamin deficiencies in high-risk emergently admitted intensive care patients, nor their association with hospital mortality. One hundred and twenty-nine consecutive, critically ill patients who were emergently admitted to intensive care were enrolled in this prospective observational cohort study. Patient data including diagnosis, source of admission and severity of illness scores were prospectively collected. Within the first 48 hours of admission, concentrations of C-reactive protein, Vitamins A, E, B1, B12 and folate were measured on arterial blood. Multivariate stepwise logistic regression modelling was performed to examine the association of vitamin concentrations with hospital mortality. Fifty-five patients (43%) had a biochemical deficiency of one of the five vitamins on admission to the intensive care unit. A total of 18 patients died (14%) during their hospital stay (15 of those in the intensive care unit). Moderate correlations with C-reactive protein concentrations were demonstrated for Vitamins B12, A and E (Spearman's r=0.309, −0.541 and −0.299, P=0.001, 0.001 and 0.007 respectively). Hospital mortality was significantly associated with age, APACHE II score, admission and maximum Sequential Organ Failure Assessment scores and admission source in the univariate analyses. Multivariate analysis did not demonstrate an association between biochemical deficiency and mortality. Biochemical deficiencies of water-soluble and antioxidant vitamins are common on admission in unplanned or emergency admissions to the intensive care unit, but we could not demonstrate an independent association with hospital mortality.
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Affiliation(s)
- T. B. Corcoran
- Department of Intensive Care Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine and Pharmacology, University of Western Australia Director of Research, Department of Anaesthesia and Pain Medicine
| | - M. A. O'Neill
- Department of Intensive Care Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
| | - S. A. R. Webb
- Department of Intensive Care Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine, Pharmacology and Population Health, University of Western Australia and Specialist in Intensive Care Medicine
| | - K. M. Ho
- Department of Intensive Care Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Population Health, University of Western Australia. Specialist in Intensive Care Medicine
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Stijn MFMV, Ligthart-Melis GC, Boelens PG, Scheffer PG, Teerlink T, Twisk JWR, Houdijk APJ, Leeuwen PAMV. Antioxidant enriched enteral nutrition and oxidative stress after major gastrointestinal tract surgery. World J Gastroenterol 2008; 14:6960-9. [PMID: 19058332 PMCID: PMC2773860 DOI: 10.3748/wjg.14.6960] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of an enteral supple-ment containing antioxidants on circulating levels of antioxidants and indicators of oxidative stress after major gastrointestinal surgery.
METHODS: Twenty-one patients undergoing major upper gastrointestinal tract surgery were randomised in a single centre, open label study on the effect of postoperative enteral nutrition supplemented with antioxidants. The effect on circulating levels of antioxidants and indicators of oxidative stress, such as F2-isoprostane, was studied.
RESULTS: The antioxidant enteral supplement showed no adverse effects and was well tolerated. After surgery a decrease in the circulating levels of antioxidant parameters was observed. Only selenium and glutamine levels were restored to pre-operative values one week after surgery. F2-isoprostane increased in the first three postoperative days only in the antioxidant supplemented group. Lipopolysaccharide binding protein (LBP) levels decreased faster in the antioxidant group after surgery.
CONCLUSION: Despite lower antioxidant levels there was no increase in the circulating markers of oxidative stress on the first day after major abdominal surgery. The rise in F2-isoprostane in patients receiving the antioxidant supplement may be related to the conversion of antioxidants to oxidants which raises questions on antioxidant supplementation. Module AOX restored the postoperative decrease in selenium levels. The rapid decrease in LBP levels in the antioxidant group suggests a possible protective effect on gut wall integrity. Further studies are needed on the role of oxidative stress on outcome and the use of antioxidants in patients undergoing major abdominal surgery.
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Silva S, de Cal M, Cruz D, Lentini P, Corradi V, Gallo G, Salvatori G, Verbine A, Pogoshyan L, Nalesso F, Brendolan A, Piccinni P, Ronco C. Oxidative stress and 'monocyte reprogramming' in septic patients with acute kidney injury requiring CRRT. Blood Purif 2008; 26:188-92. [PMID: 18277069 DOI: 10.1159/000117308] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Accepted: 10/20/2007] [Indexed: 11/19/2022]
Abstract
Oxidative stress (OS) and monocyte HLA-DR expression are known to be predictive of mortality in sepsis; nevertheless, limited information exists regarding sepsis with acute kidney injury (AKI). The aim of the study was to correlate these markers with outcome in septic patients with AKI requiring continuous renal replacement therapy (CRRT). Advanced oxidation protein products (AOPP) were measured in 32 patients on days 1, 3, 7, 14, 21, and 28. In 14 we assessed the percentage of monocytes expressing HLA-DR (%DR+) and the HLA-DR mean fluorescence intensity (MFI). 20 healthy volunteers, 17 septic patients without AKI and 20 septic AKI patients not treated by CRRT were used for comparison. The mortality rate was 59%. Septic CRRT patients had higher AOPP and lower %DR+ (p < 0.001, both) than healthy controls. They also had higher AOPP than septic patients who did not develop AKI (p < 0.001). No difference was found in AOPP, %DR+ and MFI between survivors and non-survivors (day 1 and subsequent measurements). No correlation was seen between severity scores and OS/HLA-DR. OS and HLA-DR expression are altered in septic patients with AKI undergoing CRRT. However, this study was not able to confirm the usefulness of these markers in predicting survival in this subset of patients.
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Affiliation(s)
- Sandra Silva
- Department of Nephrology, Dialysis and Transplant, St. Bortolo Hospital, Vicenza, Italy
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Berger MM, Chioléro RL. Antioxidant supplementation in sepsis and systemic inflammatory response syndrome. Crit Care Med 2007; 35:S584-90. [PMID: 17713413 DOI: 10.1097/01.ccm.0000279189.81529.c4] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Summarize the current knowledge about oxidative stress-related organ dysfunction in inflammatory and septic conditions, and its potential prevention and treatment by antioxidants in critically ill patients, focusing on naturally occurring antioxidants and clinical trials. STUDY SELECTION PubMed, MEDLINE, and personal database search. SYNTHESIS Plasma concentrations of antioxidant micronutrients are depressed during critical illness and especially during sepsis. The causes of these low levels include losses with biological fluids, low intakes, dilution by resuscitation fluids, as well as systemic inflammatory response syndrome-mediated redistribution of micronutrients from plasma to tissues. Numerous clinical trials have been conducted, many of which have shown beneficial effects of supplementation. Interestingly, among the candidates, glutamine, glutathione, and selenium are linked with the potent glutathione peroxidase enzyme family at some stage of their synthesis and metabolism. CONCLUSIONS Three antioxidant nutrients have demonstrated clinical benefits and reached level A evidence: a) selenium improves clinical outcome (infections, organ failure); b) glutamine reduces infectious complication in large-sized trials; and c) the association of eicosapentaenoic acid and micronutrients has significant anti-inflammatory effects. Other antioxidants are still on the clinical benchmark level, awaiting well-designed clinical trials.
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Affiliation(s)
- Mette M Berger
- Department of Intensive Care Medicine and Burns Centre, University Hospital, Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland.
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Walker TG, Chan DL, Freeman LM, Milbury PE, Blumberg JB. Serial determination of biomarkers of oxidative stress and antioxidant status in dogs with naturally occurring gastric dilatation-volvulus. J Vet Emerg Crit Care (San Antonio) 2007. [DOI: 10.1111/j.1476-4431.2007.00242.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abilés J, de la Cruz AP, Castaño J, Rodríguez-Elvira M, Aguayo E, Moreno-Torres R, Llopis J, Aranda P, Argüelles S, Ayala A, de la Quintana AM, Planells EM. Oxidative stress is increased in critically ill patients according to antioxidant vitamins intake, independent of severity: a cohort study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2007; 10:R146. [PMID: 17040563 PMCID: PMC1751071 DOI: 10.1186/cc5068] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2006] [Revised: 08/09/2006] [Accepted: 10/13/2006] [Indexed: 01/30/2023]
Abstract
Introduction Critically ill patients suffer from oxidative stress caused by reactive oxygen species (ROS) and reactive nitrogen species (RNS). Although ROS/RNS are constantly produced under normal circumstances, critical illness can drastically increase their production. These patients have reduced plasma and intracellular levels of antioxidants and free electron scavengers or cofactors, and decreased activity of the enzymatic system involved in ROS detoxification. The pro-oxidant/antioxidant balance is of functional relevance during critical illness because it is involved in the pathogenesis of multiple organ failure. In this study the objective was to evaluate the relation between oxidative stress in critically ill patients and antioxidant vitamin intake and severity of illness. Methods Spectrophotometry was used to measure in plasma the total antioxidant capacity and levels of lipid peroxide, carbonyl group, total protein, bilirubin and uric acid at two time points: at intensive care unit (ICU) admission and on day seven. Daily diet records were kept and compliance with recommended dietary allowance (RDA) of antioxidant vitamins (A, C and E) was assessed. Results Between admission and day seven in the ICU, significant increases in lipid peroxide and carbonyl group were associated with decreased antioxidant capacity and greater deterioration in Sequential Organ Failure Assessment score. There was significantly greater worsening in oxidative stress parameters in patients who received antioxidant vitamins at below 66% of RDA than in those who received antioxidant vitamins at above 66% of RDA. An antioxidant vitamin intake from 66% to 100% of RDA reduced the risk for worsening oxidative stress by 94% (ods ratio 0.06, 95% confidence interval 0.010 to 0.39), regardless of change in severity of illness (Sequential Organ Failure Assessment score). Conclusion The critical condition of patients admitted to the ICU is associated with worsening oxidative stress. Intake of antioxidant vitamins below 66% of RDA and alteration in endogenous levels of substances with antioxidant capacity are related to redox imbalance in critical ill patients. Therefore, intake of antioxidant vitamins should be carefully monitored so that it is as close as possible to RDA.
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Affiliation(s)
- Jimena Abilés
- Nutrition and Dietary Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - Antonio Pérez de la Cruz
- Nutrition and Dietary Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - José Castaño
- Critical Care Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - Manuel Rodríguez-Elvira
- Critical Care Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - Eduardo Aguayo
- Critical Care Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - Rosario Moreno-Torres
- Nutrition and Dietary Unit, Virgen de las Nieves Hospital, Fuerzas Armadas Avenue, 18014 Granada, Spain
| | - Juan Llopis
- Institute of Nutrition, Physiology Department, University of Granada, Campus de la Cartuja, 18071 Granada, Spain
| | - Pilar Aranda
- Institute of Nutrition, Physiology Department, University of Granada, Campus de la Cartuja, 18071 Granada, Spain
| | - Sandro Argüelles
- Biochemistry Department, University of Seville, Profesor García Gonzales street, 41012 Seville, Spain
| | - Antonio Ayala
- Biochemistry Department, University of Seville, Profesor García Gonzales street, 41012 Seville, Spain
| | | | - Elena Maria Planells
- Institute of Nutrition, Physiology Department, University of Granada, Campus de la Cartuja, 18071 Granada, Spain
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Singleton TA, Clemson LA, Gore DC. Supportive care in acute respiratory distress syndrome. Semin Thorac Cardiovasc Surg 2006; 18:35-41. [PMID: 16766251 DOI: 10.1053/j.semtcvs.2006.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2006] [Indexed: 01/04/2023]
Abstract
Although the central focus of acute respiratory distress syndrome (ARDS) is the pathology within the lung, ARDS is very much a systemic disease. As such, the whole body needs care and support while the disease process within the lung runs its course. The issues of pain management, sedation, fluid balance, nutrition, metabolic and hormonal processes, infection control, and patient positioning are important for any patient in a critical care setting. For patients with ARDS, the required ventilatory support and ARDS-associated systemic inflammation mandate the above supportive measures.
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Affiliation(s)
- Terrell A Singleton
- Department of Surgery, University of Texas Medical Branch, Galveston, Texas 77555, USA
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42
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Bongers T, Griffiths RD. Are there any real differences between enteral feed formulations used in the critically ill? Curr Opin Crit Care 2006; 12:131-5. [PMID: 16543789 DOI: 10.1097/01.ccx.0000216580.41933.00] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW We know that adequate nutritional support is essential in the treatment of critically ill patients, because it can, if applied appropriately, improve the clinical outcome. Increasing evidence seems to suggest that malnutrition itself is a predictor of poor outcome in intensive care, and significant underfeeding during intensive care stay increases the risk of bloodstream infections. The purpose of this review is to highlight recent advances in enteral nutrition in the critically ill adult patient. RECENT FINDINGS Recent studies suggest that tight glycaemic control is associated with improved outcome. Enteral feeding should be encouraged, using simple feeding protocols, and started early if safe to do so. Gastric residual volumes do not correlate with the risk of aspiration, and therefore should be used with caution in feeding protocols. Conflicting evidence exists for supplementation with antioxidant and immunonutrition in the critically ill. Glutamine and fish oil/borage oil should be considered for burns patients and patients with adult respiratory distress syndrome, respectively. SUMMARY This review offers information regarding the latest developments in nutritional support via the enteral route. Further research is needed to clarify the role of enteral supplements such as antioxidants and 'immune modulating substances'.
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Affiliation(s)
- Thomas Bongers
- ICU Whiston Hospital and School of Clinical Science, University of Liverpool, Liverpool, UK.
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Abstract
Enteral nutrition (EN) is the mainstay of nutrition delivery within intensive care seeking to capitalise on its benefits for the gastrointestinal tract and associated immune system, but this has brought new challenges in delivery to the sick. The hoped for benefit has led to the mistaken belief by some that parenteral nutrition (PN) is no longer required. However, a greater appreciation of the risks of EN delivery in the sick patient combined with improvements in PN formulation and use help explain why PN is not as risky as some have believed. Real outcome benefits have been described with the new glutamine containing PN formulations. PN remains important in the presence of gastrointestinal feed intolerance or failure.
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Affiliation(s)
- R D Griffiths
- Division of Metabolic and Cellular Medicine, School of Clinical Sciences, University of Liverpool, Whiston Hospital, Merseyside, UK.
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44
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Al-Saleh I, Billedo G, El-Doush I, El-Din Mohamed G, Yosef G. Selenium and vitamins status in Saudi children. Clin Chim Acta 2006; 368:99-109. [PMID: 16503332 DOI: 10.1016/j.cca.2005.12.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2005] [Revised: 12/13/2005] [Accepted: 12/13/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND Selenium is an essential element, and a cofactor required to maintain glutathione peroxidase activity. Its deficiency may induce modification in the cellular antioxidative status and the appearance of different diseases. Previous studies in Al-Kharj reported low selenium levels in the soil and the milk of lactating mothers living in that area. METHODS A cross-sectional study was carried out to determine the status of selenium, dl-alpha-tocopherol, and all-trans-retinol in 513 Saudi children living in Al-Kharj district using serum and toenail samples. RESULTS The prevalence of children with serum selenium below the threshold limit of clinical importance in coronary and cardiovascular diseases (45 microg/l) was only 1.4%, while 53.4% of the tested children had toenail selenium >0.56 microg/g, which is considered a low level as indicated in a previous study. DL-alpha-tocopherol deficiency (<0.5 mg/dl) was found only in 3.1%. However, none of the children in this study had a severe all-trans-retinol deficiency (<10 microg/dl) and the percentage of children with marginal deficiency <20 microg/dl was 5.5%. CONCLUSION It seems that the geographical location of primary health care units (PHCUs) is the most important factor in influencing the selenium status of these children. This implies variations in food habits. Serum and toenail selenium concentrations were significantly related which can both reflect dietary selenium intake. Although our results suggest an adequate vitamin A status, we found interestingly that 10.9% of the children had retinol >50 microg/dl. This suggests that a high dietary intake of vitamin A might have a harmful effect. Further work is necessary to determine whether the hypervitaminosis A in children reflects an excessive dietary intake of retinol. A significant negative association was also found between dl-alpha-tocopherol and all-trans-retinol and malonaldehyde (MDA) levels in the serum of children population. This confirms their role in reducing oxidative stress.
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Affiliation(s)
- Iman Al-Saleh
- Biological and Medical Research Department, King Faisal Specialist Hospital and Research Centre, P.O. Box: 3354, Riyadh 11211, Saudi Arabia.
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45
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Crimi E, Sica V, Williams-Ignarro S, Zhang H, Slutsky AS, Ignarro LJ, Napoli C. The role of oxidative stress in adult critical care. Free Radic Biol Med 2006; 40:398-406. [PMID: 16443154 DOI: 10.1016/j.freeradbiomed.2005.10.054] [Citation(s) in RCA: 145] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2005] [Revised: 10/16/2005] [Accepted: 10/22/2005] [Indexed: 11/23/2022]
Abstract
Oxidative stress defines an imbalance in production of oxidizing chemical species and their effective removal by protective antioxidants and scavenger enzymes. Evidence of massive oxidative stress is well established in adult critical illnesses characterized by tissue ischemia-reperfusion injury and by an intense systemic inflammatory response such as during sepsis and acute respiratory distress syndrome. Oxidative stress could exacerbate organ injury and thus overall clinical outcome. We searched MEDLINE databases (January 1966 to June 2005). For interventional studies, we accepted only randomized trials. Several small clinical trials have been performed in order to reduce oxidative stress by supplementation of antioxidants alone or in combination with standard therapies. These studies have reported controversial results. Newer large multicenter trials with antioxidant supplementation should be performed, considering administration at an early stage of illness and a wider population of critically ill patients.
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Affiliation(s)
- Ettore Crimi
- Department of Anesthesiology and Critical Care Medicine, University of Eastern Piedmont, 28100 Novara, Italy.
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46
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47
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Immunonutrition. Clin Nutr 2005. [DOI: 10.1016/b978-0-7216-0379-7.50023-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Heyland DK, Dhaliwal R, Suchner U, Berger MM. Antioxidant nutrients: a systematic review of trace elements and vitamins in the critically ill patient. Intensive Care Med 2004; 31:327-37. [PMID: 15605227 DOI: 10.1007/s00134-004-2522-z] [Citation(s) in RCA: 239] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2004] [Accepted: 11/08/2004] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Critical illness is associated with the generation of oxygen free radicals and low endogenous antioxidant capacity leading to a condition of oxidative stress. We investigated whether supplementing critically ill patients with antioxidants, trace elements, and vitamins improves their survival. METHODS We searched four bibliographic databases from 1980 to 2003 and included studies that were randomized, reported clinically important endpoints in critically ill patients, and compared various trace elements and vitamins to placebo. RESULTS Eleven articles met the inclusion criteria. When the results of all the trials were aggregated, overall antioxidants were associated with a significant reduction in mortality [Risk Ratio (RR) 0.65, 95% confidence intervals (CI) 0.44-0.97, p=0.03] but had no effect on infectious complications. Studies that utilized a single trace element were associated with a significant reduction in mortality [RR 0.52, 95% CI 0.27-0.98, p=0.04] whereas combined antioxidants had no effect. Studies using parenteral antioxidants were associated with a significant reduction in mortality [RR 0.56, 95% CI 0.34-0,92, p=0.02] whereas studies of enteral antioxidants were not. Selenium supplementation (alone and in combination with other antioxidants) may be associated with a reduction in mortality [RR 0.59, 95% CI 0.32-1.08, p=0.09] while nonselenium antioxidants had no effect on mortality. CONCLUSIONS Trace elements and vitamins that support antioxidant function, particularly high-dose parenteral selenium either alone or in combination with other antioxidants, are safe and may be associated with a reduction in mortality in critically ill patients.
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Affiliation(s)
- Daren K Heyland
- Department of Medicine, Queen's University, Kingston, ONT, Canada.
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49
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Crimi E, Liguori A, Condorelli M, Cioffi M, Astuto M, Bontempo P, Pignalosa O, Vietri MT, Molinari AM, Sica V, Corte FD, Napoli C. The beneficial effects of antioxidant supplementation in enteral feeding in critically ill patients: a prospective, randomized, double-blind, placebo-controlled trial. Anesth Analg 2004; 99:857-863. [PMID: 15333422 DOI: 10.1213/01.ane.0000133144.60584.f6] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We investigated whether intervention with antioxidant vitamins C and E in enteral feeding influenced oxidative stress and clinical outcome in critically ill patients. Two-hundred-sixteen patients expected to require at least 10 days of enteral feeding completed the study. One-hundred-five patients received enteral feeding supplemented with antioxidants, and 111 control patients received an isocaloric formula. Plasma lipoperoxidation (by thiobarbituric acid reactive substances [TBARS] and prostaglandin F(2alpha) isoprostane levels), low-density lipoprotein (LDL) oxidizability, and LDL tocopherol content were determined at baseline and at the end of the 10-day period. The clinical 28-day outcome was also assessed. Plasma TBARS and isoprostanes were 5.33 +/- 1.26 nM/mL and 312 +/- 68 pg/mL, respectively, before treatment and 2.42 +/- 0.61 nM/mL and 198 +/- 42 pg/mL after intervention (P < 0.01 for both comparisons). Antioxidants improved LDL resistance to oxidative stress by approximately 30% (the lag time before treatment was 87 +/- 23 min and was 118 +/- 20 min after treatment; P < 0.04). There was a significantly reduced 28-day mortality after antioxidant intervention (45.7% in the antioxidant group and 67.5% in the regular-feeding group; P < 0.05). Isoprostanes may provide a sensitive biochemical marker for dose selection in studies involving antioxidants.
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Affiliation(s)
- Ettore Crimi
- *Department of Anesthesiology and Intensive Care, University of Eastern Piedmont, Novara, Italy; †Coronary Care Unit, Pellegrini Hospital, Naples, Italy; ‡Department of Medicine, University of Naples, Naples, Italy; §Division of Clinical Pathology, II University of Naples, Naples, Italy; and ||Department of Anesthesiology and Intensive Care, University of Catania, Catania, Italy
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Abstract
How nutritional therapy may affect real clinical outcomes is not readily apparent from a superficial reading of current data. Despite great claims in reducing infectious incidence, many studies show little difference in meaningful clinical outcomes. This has led to confusion over the role of nutrition and nutrition practice in intensive care. However, the role that nutrition plays in preventing infection and later how nutrition aids long-term recovery perhaps explain many of the misconceptions and difficulty in understanding the evidence. Encouraging new evidence is starting to show that outcome can be improved by implementing relatively simple therapies well that have an impact on nutrition and metabolic control.
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Affiliation(s)
- Richard D Griffiths
- Department of Medicine, University of Liverpool, Whiston Hospital, Merseyside, UK
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