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Pei H, Qu J, Chen JM, Zhang YL, Zhang M, Zhao GJ, Lu ZQ. The effects of antioxidant supplementation on short-term mortality in sepsis patients. Heliyon 2024; 10:e29156. [PMID: 38644822 PMCID: PMC11033118 DOI: 10.1016/j.heliyon.2024.e29156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024] Open
Abstract
Background The occurrence and development of sepsis are related to the excessive production of oxygen free radicals and the weakened natural clearance mechanism. Further dependable evidence is required to clarify the effectiveness of antioxidant therapy, especially its impact on short-term mortality. Objectives The purpose of this systematic review and meta-analysis was to evaluate the effect of common antioxidant therapy on short-term mortality in patients with sepsis. Methods According to PRISMA guidelines, a systematic literature search on antioxidants in adults sepsis patients was performed on PubMed/Medline, Embase, and the Cochrane Library from the establishment of the database to November 2023. Antioxidant supplements can be a single-drug or multi-drug combination: HAT (hydrocortisone, ascorbic acid, and thiamine), ascorbic acid, thiamine, N-acetylcysteine and selenium. The primary outcome was the effect of antioxidant treatment on short-term mortality, which included 28-day mortality, in-hospital mortality, intensive care unit mortality, and 30-day mortality. Subgroup analyses of short-term mortality were used to reduce statistical heterogeneity and publication bias. Results Sixty studies of 130,986 sepsis patients fulfilled the predefined criteria and were quantified and meta-analyzed. Antioxidant therapy reduces the risk of short-term death in sepsis patients by multivariate meta-analysis of current data, including a reduction of in-hospital mortality (OR = 0.81, 95% CI 0.67 to 0.99; P = 0.040) and 28-day mortality (OR = 0.81, 95% CI 0.69 to 0.95]; P = 0.008). Particularly in subgroup analyses, ascorbic acid treatment can reduce in-hospital mortality (OR = 0.66, 95% CI 0.90 to 0.98; P = 0.006) and 28-day mortality (OR = 0.43, 95% CI 0.24 to 0.75; P = 0.003). However, the meta-analysis of RCTs found that antioxidant therapy drugs, especially ascorbic acid, did substantially reduce short-term mortality(OR = 0.78, 95% CI 0.62 to 0.98; P = 0.030; OR = 0.57, 95% CI 0.36 to 0.91; P = 0.020). Conclusions According to current data of RCTs, antioxidant therapy, especially ascorbic acid, has a trend of improving short-term mortality in patients with sepsis, but the evidence remains to be further demonstrated.
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Affiliation(s)
- Hui Pei
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jie Qu
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jian-Ming Chen
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yao-Lu Zhang
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Min Zhang
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Guang-Ju Zhao
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, 325000, China
| | - Zhong-Qiu Lu
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, 325000, China
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Piccirillo A, Perri F, Vittori A, Ionna F, Sabbatino F, Ottaiano A, Cascella M. Evaluating Nutritional Risk Factors for Delirium in Intensive-Care-Unit Patients: Present Insights and Prospects for Future Research. Clin Pract 2023; 13:1577-1592. [PMID: 38131687 PMCID: PMC10742123 DOI: 10.3390/clinpract13060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Malnutrition, hypercatabolism, and metabolic changes are well-established risk factors for delirium in critically ill patients. Although the exact mechanisms are not fully understood, there is mounting evidence suggesting that malnutrition can cause a variety of changes that contribute to delirium, such as electrolyte imbalances, immune dysfunction, and alterations in drug metabolism. Therefore, a comprehensive metabolic and malnutrition assessment, along with appropriate nutritional support, may help to prevent or ameliorate malnutrition, reduce hypercatabolism, and improve overall physiological function, ultimately lowering the risk of delirium. For this aim, bioelectrical impedance analysis can represent a valuable strategy. Further research into the underlying mechanisms and nutritional risk factors for delirium is crucial to developing more effective prevention strategies. Understanding these processes will allow clinicians to personalize treatment plans for individual patients, leading to improved outcomes and quality of life in the intensive-care-unit survivors.
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Affiliation(s)
- Arianna Piccirillo
- Otolaryngology and Maxillo-Facial Surgery Unit, Istituto Nazionale Tumori—IRCCS Fondazione G. Pascale, 80131 Naples, Italy
| | - Francesco Perri
- Medical and Experimental Head and Neck Oncology Unit, Istituto Nazionale Tumori—IRCCS Fondazione G. Pascale, 80131 Naples, Italy
| | - Alessandro Vittori
- Department of Anesthesia and Critical Care, ARCO ROMA, Ospedale Pediatrico Bambino Gesù IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Franco Ionna
- Otolaryngology and Maxillo-Facial Surgery Unit, Istituto Nazionale Tumori—IRCCS Fondazione G. Pascale, 80131 Naples, Italy
| | | | - Alessandro Ottaiano
- SSD Innovative Therapies for Abdominal Metastases, Abdominal Oncology, Istituto Nazionale Tumori di Napoli, IRCCS “G. Pascale”, 80131 Naples, Italy;
| | - Marco Cascella
- Unit of Anesthesiology, Intensive Care Medicine, and Pain Medicine, Department of Medicine, Surgery, and Dentistry, University of Salerno, Via Salvador Allende, 43, 84081 Baronissi, Italy
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Iizuka Y, Yoshinaga K, Takahashi K, Oki S, Chiba Y, Sanui M, Kimura N, Yamaguchi A. Association between Plasma Ascorbic Acid Levels and Postoperative Delirium in Older Patients Undergoing Cardiovascular Surgery: A Prospective Observational Study. J Cardiovasc Dev Dis 2023; 10:293. [PMID: 37504549 PMCID: PMC10380566 DOI: 10.3390/jcdd10070293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/01/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND The incidence of delirium is high in older patients undergoing cardiovascular surgery with cardiopulmonary bypass (CPB). Intraoperative tissue hypoperfusion and re-reperfusion injury, which generate reactive oxygen species (ROS), are suggested to induce delirium. Ascorbic acid is an excellent antioxidant and may reduce organ damage by inhibiting the production of ROS. This prospective observational study aimed to measure pre- and postoperative plasma ascorbic acid levels and examine their association with delirium. METHODS Patients older than 70 years of age scheduled for elective cardiovascular surgery using CPB were enrolled. From September 2020 to December 2021, we enrolled 100 patients, and the data of 98 patients were analyzed. RESULTS In total, 31 patients developed delirium, while 67 did not. Preoperative plasma ascorbic acid levels did not differ between the non-delirium and delirium groups (6.0 ± 2.2 vs. 5.5 ± 2.4 µg/mL, p = 0.3). Postoperative plasma ascorbic acid levels were significantly different between the groups (2.8 [2.3-3.5] vs. 2.3 [1.6-3.3] µg/mL, p = 0.037). CONCLUSIONS In patients who undergo cardiovascular surgery with CPB, lower postoperative plasma ascorbic acid levels may be associated with the development of delirium.
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Affiliation(s)
- Yusuke Iizuka
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Koichi Yoshinaga
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Kyosuke Takahashi
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Sayaka Oki
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Yoshihiko Chiba
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Masamitsu Sanui
- Department of Anesthesiology and Critical Care Medicine, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Naoyuki Kimura
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
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Wang Z, Liu L, Liu L. Vitamin C as a treatment for organ failure in sepsis. Eur J Med Res 2023; 28:222. [PMID: 37408078 DOI: 10.1186/s40001-023-01183-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 06/21/2023] [Indexed: 07/07/2023] Open
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection, with a high morbidity and mortality rate. Exogenous vitamin C supplementation is a potential therapeutic option for the treatment of multi-organ dysfunction in sepsis due to the significantly lower levels of vitamin C in the circulating blood of sepsis patients compared to healthy subjects and the importance of vitamin C in many of the physiological processes of sepsis. Vitamin C may influence the function of numerous organs and systems, including the heart, lungs, kidneys, brain, and immune defences, by reducing oxidative stress, inhibiting inflammatory factor surges, regulating the synthesis of various mediators and hormones, and enhancing immune cell function. With the development of multiple clinical randomized controlled trials, the outcomes of vitamin C treatment for critically ill patients have been discussed anew. This review's objectives are to provide an overview of how vitamin C affects various organ functions in sepsis and to illustrate how it affects each organ. Understanding the pharmacological mechanism of vitamin C and the organ damage caused by sepsis may help to clarify the conditions and clinical applications of vitamin C.
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Affiliation(s)
- Zitong Wang
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Liang Liu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, 050000, China
- Institute of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lixia Liu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
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Tauber SC, Nau R. Treatment of septic encephalopathy and encephalitis - a critical appraisal. Expert Rev Neurother 2023; 23:1069-1080. [PMID: 38019041 DOI: 10.1080/14737175.2023.2288652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/23/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION The central nervous system is frequently involved during severe sepsis. Patients either develop septic encephalopathy characterized by delirium and coma or focal neurological signs as a consequence of septic-embolic or septic-metastatic encephalitis. AREAS COVERED In this review, a summary of currently available literature on established and some promising experimental treatment options for septic encephalopathy and encephalitis is provided, with a focus on the clinical utility of published studies. EXPERT OPINION Treatment relies on proper identification of the causative pathogen and rapidly initiated adequate empirical or (after identification of the pathogen) tailored antibiotic therapy, fluid and electrolyte management. In the presence of brain abscess(es) or mycotic aneurysm(s), surgery or interventional neuroradiology must be considered. Pharmacological approaches to prevent delirium of different etiology include the use of dexmedetomidine and (with limitations) of melatonin and its derivatives. In the absence of a specific pharmacological treatment, non-pharmacological bundles of interventions (e.g. promotion of sleep, cognitive stimulation, early mobilization and adequate therapy of pain) are of proven efficacy to prevent delirium of different etiology including sepsis. Experimental promising therapies include the use of non-bacteriolytic antibiotics and the reduction of the toxic effects of microglial activation.
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Affiliation(s)
- Simone C Tauber
- Department of Neurology, RWTH University Hospital Aachen, Aachen, Germany
| | - Roland Nau
- Department of Neuropathology, University Medicine Göttingen, Georg-August-University Göttingen, Göttingen, Germany
- Department of Geriatrics, Evangelisches Krankenhaus Göttingen-Weende, Göttingen, Germany
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Muacevic A, Adler JR, Sevilla L, Garza J, Rashid H, Benitez AC, Shipotko M, Ali Z. A Systematic Review and Meta-Analysis on Possible Role of Vitamin C in Sepsis. Cureus 2022; 14:e32886. [PMID: 36699754 PMCID: PMC9867929 DOI: 10.7759/cureus.32886] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2022] [Indexed: 12/24/2022] Open
Abstract
Sepsis is a substantial healthcare burden, and its management continues to be a major challenge. Prior studies demonstrate conflicting evidence regarding the utility of vitamin C in sepsis. This systematic review and meta-analysis aim to collect data among critically ill patients (sepsis/septic shock), comparing the efficacy of parenteral vitamin C with standard care. A literature review was conducted using databases including PubMed, Web of Science, Google Scholar, and the Cochrane Library to identify randomized controlled trials (RCTs) and observational studies comparing intravenous vitamin C alone or in combination with thiamine or glucocorticoids to the standard of care. We identified 11 RCTs and seven retrospective cohort studies. The primary outcome was 28-day mortality. Secondary outcomes included intensive care unit (ICU) length of stay, change in Sequential Organ Failure Assessment (SOFA) score, duration of vasopressor use, and duration of mechanical ventilation. A total of 18 studies with 4078 patients were included in our final analysis. Overall, we found no mortality reduction in patients treated with vitamin C compared to standard of care (odds ratio (OR) 0.92; 95% confidence interval (CI) 0.78 to 1.09; p = 0.34). Studies that reported a change in SOFA scores, ICU length of stay, duration of mechanical ventilation, or duration of vasopressor use did not show any significant difference between groups. Subgroup analysis with RCT versus observational studies and vitamin C dosage regimens did not show any difference. Among patients with sepsis or septic shock, treatment with vitamin C was not associated with a reduction in mortality, ICU length of stay, change in SOFA score, duration of vasopressor use, or duration of mechanical ventilation. Further studies are needed to demonstrate the potential role of vitamin C in the management of sepsis.
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Vitamin C in Critically Ill Patients: An Updated Systematic Review and Meta-Analysis. Nutrients 2021; 13:nu13103564. [PMID: 34684565 PMCID: PMC8539952 DOI: 10.3390/nu13103564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 12/25/2022] Open
Abstract
Background: Vitamin C is a water-soluble antioxidant vitamin. Oxidative stress and its markers, along with inflammatory markers, are high during critical illness. Due to conflicting results of the published literature regarding the efficacy of vitamin C in critically ill patients, and especially the concerns for nephrotoxicity raised by some case reports, this meta-analysis was carried out to appraise the evidence and affirmation regarding the role of vitamin C in critically ill patients. Methods: We searched the database thoroughly to collect relevant studies that assessed intravenous vitamin C use in critically ill patients published until 25 February 2021. We included randomized controlled trials and observational studies with 20 or more critically ill patients who have received intravenous ascorbic acid (vitamin C). After screening 18,312 studies from different databases, 53 were included in our narrative synthesis, and 48 were included in the meta-analysis. We used the Covidence software for screening of the retrieved literature. Review Manager (RevMan) 5.4 was used for the pooling of data and Odds Ratios (OR) and Mean difference (MD) as measures of effects with a 95% confidence interval to assess for explanatory variables. Results: Pooling data from 33 studies for overall hospital mortality outcomes using a random-effect model showed a 19% reduction in odds of mortality among the vitamin C group (OR, 0.81; 95% CI, 0.66–0.98). Length of hospital stay (LOS), mortality at 28/30 days, ICU mortality, new-onset AKI and Renal Replacement Therapy (RRT) for AKI did not differ significantly across the two groups. Analysis of data from 30 studies reporting ICU stay disclosed 0.76 fewer ICU days in the vitamin C group than the placebo/standard of care (SOC) group (95% CI, −1.34 to −0.19). This significance for shortening ICU stay persisted even when considering RCTs only in the analysis (MD, −0.70; 95% CI, −1.39 to −0.02). Conclusion: Treatment of critically ill patients with intravenous vitamin C was relatively safe with no significant difference in adverse renal events and decreased in-hospital mortality. The use of vitamin C showed a significant reduction in the length of ICU stays in critically ill patients.
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Lange S, Mędrzycka-Dąbrowska W, Friganovic A, Oomen B, Krupa S. Delirium in Critical Illness Patients and the Potential Role of Thiamine Therapy in Prevention and Treatment: Findings from a Scoping Review with Implications for Evidence-Based Practice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168809. [PMID: 34444556 PMCID: PMC8392497 DOI: 10.3390/ijerph18168809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Thiamine is a water-soluble vitamin and is necessary for energy metabolism. Critically ill patients are at particular risk of developing thiamine deficiency and related complications. One of the complications that can occur is delirium. Delirium is a disorder that affects the body's response to treatment, length of stay in the ward, mortality, long-term cognitive impairment, and significantly increases treatment costs. In addition, studies show that delirium medication is more effective in preventing than in treating delirium. Given its low cost, availability, and minimal risk of side effects, thiamine supplementation could prove to be a relevant strategy in the prevention and treatment of delirium. METHODS PubMed, Cochrane Library, Ovid, and ClinicalTrials.gov databases were searched using relevant keywords that focus on the use of thiamine to prevent or treat delirium in critically ill patients. RESULTS Seven articles were included in the analysis. CONCLUSION The small number of studies and considerable heterogeneity prevent conclusions supporting the use of thiamine as an adjuvant in the prevention and treatment of delirium among critically ill patients. There is a need for high-quality, large-scale randomized clinical trials to confirm the beneficial effects of thiamine in the prevention and treatment of delirium.
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Affiliation(s)
- Sandra Lange
- Department of Anesthesiology and Intensive Care, Hospitals Tczewskie SA, 83-110 Tczew, Poland;
| | - Wioletta Mędrzycka-Dąbrowska
- Department of Anesthesiology Nursing & Intensive Care, Faculty of Health Sciences, Medical University of Gdansk, 80-211 Gdańsk, Poland
- Correspondence:
| | - Adriano Friganovic
- Department of Anesthesiology and Intensive Medicine, University Hospital Centre Zagreb, 10000 Zagreb, Croatia;
- Department of Nursing, University of Applied Health Sciences, 10000 Zagreb, Croatia
| | - Ber Oomen
- European Specialist Nurses Organization (ESNO), 6821HR Arnhem, The Netherlands;
| | - Sabina Krupa
- Institute of Health Sciences, College of Medical Sciences, University of Rzeszow, 35-310 Rzeszow, Poland;
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Sedhai YR, Shrestha DB, Budhathoki P, Jha V, Mandal SK, Karki S, Baniya R, Cable CA, Kashiouris MG. Effect of thiamine supplementation in critically ill patients: A systematic review and meta-analysis. J Crit Care 2021; 65:104-115. [PMID: 34118501 DOI: 10.1016/j.jcrc.2021.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/31/2021] [Accepted: 05/26/2021] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Several studies have previously shown the benefit of thiamine supplementation in critically ill patients. In order to fully appraise the available data, we performed a meta-analysis of 18 published studies. METHODS A thorough systematic search was conducted. The studies enrolling critically ill patients receiving thiamine supplementation was compared with the standard of care (SOC) group. Data was analyzed using RevMan 5.4. Clinical outcomes were pooled using Odds Ratio (OR) and mean differences. RESULT Eighteen studies (8 RCTs and 10 cohort studies) met the criteria for quantitative synthesis. In the analysis of RCTs, thiamine supplementation showed 42% lower odds of developing ICU delirium (OR 0.58, 95% CI, 0.34-0.98). A reduction in mortaliy was observed on performing fixed effect model analysis however, a level of statistical significance could not be reached on performing randon effect model analysis (OR, 0.78; 95% CI, 0.59 to 1.04). Further sub-group analysis of 13 studies in patients with sepsis, there was no difference in mortality between the two groups (OR, 0.83; 95% CI, 0.63 to 1.09). CONCLUSION Thiamine supplementation in critically ill patients showed a reduction in the incidence of ICU delirium among RCTs. However, there was no significant benefit in terms of overall mortality, and mortality in patients with sepsis. Further, large scale randomized prospective studies are warranted to investigate the role of thiamine supplementation in critically ill patients.
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Affiliation(s)
- Yub Raj Sedhai
- Department of Internal Medicine, Division of Hospital Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA.
| | | | - Pravash Budhathoki
- Department of Internal Medicine, BronxCare Health System, Bronx, NY, USA
| | - Vivek Jha
- Department of Cardiology, Manmohan Cardiothoracic Vascular and Transplant Center, Kathmandu, Nepal
| | - Sujit Kumar Mandal
- Department of Cardiology, Manmohan Cardiothoracic Vascular and Transplant Center, Kathmandu, Nepal; Nepalese Army Institute of Health Sciences, Kathmandu, Nepal
| | | | - Ramkaji Baniya
- Our Lady of the Lake Regional Medical Center, Baton Rouge, LA, USA
| | - Casey A Cable
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, VCU School of Medicine, Richmond, VA, USA
| | - Markos G Kashiouris
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, VCU School of Medicine, Richmond, VA, USA.
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Müller S, Wiesmann T, Wulf H, Arndt C. [Vitamin C - New Option in Sepsis Therapy?]. Anasthesiol Intensivmed Notfallmed Schmerzther 2021; 56:374-382. [PMID: 34038976 DOI: 10.1055/a-1109-4363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Vitamin C deficiency often occurs in critical illness and especially in patients with sepsis. Low plasma levels correlate with organ dysfunction and outcome parameters. Vitamin C offers pleiotropic effects possibly attenuating pathophysiology in sepsis. This includes antioxidative effects like scavenging reactive oxygen species or restoring other antioxidants. Vitamin C is a cofactor for norepinephrine biosynthesis and it protects endothelial function. In addition, it modulates immune response. A combined therapy with vitamin C, hydrocortisone and thiamine could be beneficial because of synergistic effects. Some clinical studies have shown reduced mortality due to vitamin C alone or in combination with hydrocortisone and thiamine, others do not. Adverse events are rare. So data supporting a therapy with vitamin C is still unclear. Further randomised controlled trials are necessary.
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11
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Sepsis: Current Clinical Practices and New Perspectives: Introduction to the Special Issue. J Clin Med 2021; 10:jcm10030443. [PMID: 33498815 PMCID: PMC7866043 DOI: 10.3390/jcm10030443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 01/22/2021] [Indexed: 11/17/2022] Open
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Scholz SS, Borgstedt R, Ebeling N, Menzel LC, Jansen G, Rehberg S. Mortality in septic patients treated with vitamin C: a systematic meta-analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2021; 25:17. [PMID: 33407793 PMCID: PMC7787590 DOI: 10.1186/s13054-020-03438-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/14/2020] [Indexed: 12/12/2022]
Abstract
Background Supplementation of vitamin C in septic patients remains controversial despite eight large clinical trials published only in 2020. We aimed to evaluate the evidence on potential effects of vitamin C treatment on mortality in adult septic patients. Methods Data search included PubMed, Web of Science, and the Cochrane Library. A meta-analysis of eligible peer-reviewed studies was performed in accordance with the PRISMA statement. Only studies with valid classifications of sepsis and intravenous vitamin C treatment (alone or combined with hydrocortisone/thiamine) were included. Results A total of 17 studies including 3133 patients fulfilled the predefined criteria and were analyzed. Pooled analysis indicated no mortality reduction in patients treated with vitamin C when compared to reference (risk difference − 0.05 [95% CI − 0.11 to − 0.01]; p = 0.08; p for Cochran Q = 0.002; I2 = 56%). Notably, subgroup analyses revealed an improved survival, if vitamin C treatment was applied for 3–4 days (risk difference, − 0.10 [95% CI − 0.19 to − 0.02]; p = 0.02) when compared to patients treated for 1–2 or > 5 days. Also, timing of the pooled mortality assessment indicated a reduction concerning short-term mortality (< 30 days; risk difference, − 0.08 [95% CI − 0.15 to − 0.01]; p = 0.02; p for Cochran Q = 0.02; I2 = 63%). Presence of statistical heterogeneity was noted with no sign of significant publication bias. Conclusion Although vitamin C administration did not reduce pooled mortality, patients may profit if vitamin C is administered over 3 to 4 days. Consequently, further research is needed to identify patient subgroups that might benefit from intravenous supplementation of vitamin C.
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Affiliation(s)
- Sean S Scholz
- Department of Anaesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Campus Bielefeld-Bethel, Burgsteig 13, Haus Gilead I, 33617, Bielefeld, Germany.
| | - Rainer Borgstedt
- Department of Anaesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Campus Bielefeld-Bethel, Burgsteig 13, Haus Gilead I, 33617, Bielefeld, Germany
| | - Nicole Ebeling
- Department of Anaesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Campus Bielefeld-Bethel, Burgsteig 13, Haus Gilead I, 33617, Bielefeld, Germany
| | - Leoni C Menzel
- Institute for Diagnostic and Interventional Radiology, Protestant Hospital of the Bethel Foundation, Bielefeld, Germany
| | - Gerrit Jansen
- Department of Anaesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Campus Bielefeld-Bethel, Burgsteig 13, Haus Gilead I, 33617, Bielefeld, Germany
| | - Sebastian Rehberg
- Department of Anaesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Campus Bielefeld-Bethel, Burgsteig 13, Haus Gilead I, 33617, Bielefeld, Germany
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