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McBride WT, Kurth MJ, Domanska A, Watt J, McLean G, Joseph J, Lamont JV, Fitzgerald P, Ruddock MW. Blood and urinary cytokine balance and renal outcomes at cardiac surgery. BMC Nephrol 2021; 22:406. [PMID: 34876054 PMCID: PMC8653550 DOI: 10.1186/s12882-021-02621-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 11/24/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Increased perioperative pro-inflammatory biomarkers, renal hypoperfusion and ischemia reperfusion injury (IRI) heighten cardiac surgery acute kidney injury (CS-AKI) risk. Increased urinary anti-inflammatory cytokines attenuate risk. We evaluated whether blood and urinary anti-inflammatory biomarkers, when expressed as ratios with biomarkers of inflammation, hypoperfusion and IRI are increased in CS-AKI patients. METHODS Preoperative and 24-h postoperative blood and urinary pro-inflammatory and anti-inflammatory cytokines, blood VEGF and H-FABP (hypoperfusion biomarkers), and MK, a biomarker for IRI, were measured in 401 cardiac surgery patients. Pre- and postoperative concentrations of biomarkers and selected ratios thereof, were compared between non-CS-AKI and CS-AKI patients. RESULTS Compared with non-CS-AKI, blood pro-inflammatory (pre- and post-op TNFα, IP-10, IL-12p40, MIP-1α, NGAL; pre-op IL-6; post-op IL-8, MK) and anti-inflammatory (pre- and post-op sTNFsr1, sTNFsr2, IL-1RA) biomarkers together with urinary pro-inflammatory (pre- and post-op uIL-12p40; post-op uIP-10, uNGAL) and anti-inflammatory (pre- and post-op usTNFsr1, usTNFsr2, uIL-1RA) biomarkers, were significantly higher in CS-AKI patients. Urinary anti-inflammatory biomarkers, when expressed as ratios with biomarkers of inflammation (blood and urine), hypoperfusion (blood H-FABP and VEGF) and IRI (blood MK) were decreased in CS-AKI. In contrast, blood anti-inflammatory biomarkers expressed as similar ratios with blood biomarkers were increased in CS-AKI. CONCLUSIONS The urinary anti-inflammatory response may protect against the injurious effects of perioperative inflammation, hypoperfusion and IRI. These finding may have clinical utility in bioprediction and earlier diagnosis of CS-AKI and informing future therapeutic strategies for CS-AKI patients.
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Affiliation(s)
- William T. McBride
- Department of Cardiac Anesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, Northern Ireland BT12 6BA UK
| | - Mary Jo Kurth
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
| | - Anna Domanska
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
| | - Joanne Watt
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
| | - Gavin McLean
- Department of Cardiac Anesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, Northern Ireland BT12 6BA UK
| | - Jijin Joseph
- Department of Cardiac Anesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, Northern Ireland BT12 6BA UK
| | - John V. Lamont
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
| | - Peter Fitzgerald
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
| | - Mark W. Ruddock
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim BT29 4QY Northern Ireland, UK
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McBride WT, Kurth MJ, McLean G, Domanska A, Lamont JV, Maguire D, Watt J, Fitzgerald P, Young I, Joseph J, Ruddock MW. Stratifying risk of acute kidney injury in pre and post cardiac surgery patients using a novel biomarker-based algorithm and clinical risk score. Sci Rep 2019; 9:16963. [PMID: 31740699 PMCID: PMC6861253 DOI: 10.1038/s41598-019-53349-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/31/2019] [Indexed: 12/22/2022] Open
Abstract
Acute kidney injury (AKI) following cardiac surgery significantly increases morbidity and mortality risks. Improving existing clinical methods of identifying patients at risk of perioperative AKI may advance management and treatment options. This study investigated whether a combination of biomarkers and clinical factors pre and post cardiac surgery could stratify patients at risk of developing AKI. Patients (n = 401) consecutively scheduled for elective cardiac surgery were prospectively studied. Clinical data was recorded and blood samples were tested for 31 biomarkers. Areas under receiver operating characteristic (AUROCs) were generated for biomarkers pre and postoperatively to stratify patients at risk of AKI. Preoperatively sTNFR1 had the highest predictive ability to identify risk of developing AKI postoperatively (AUROC 0.748). Postoperatively a combination of H-FABP, midkine and sTNFR2 had the highest predictive ability to identify AKI risk (AUROC 0.836). Preoperative clinical risk factors included patient age, body mass index and diabetes. Perioperative factors included cardio pulmonary bypass, cross-clamp and operation times, intra-aortic balloon pump, blood products and resternotomy. Combining biomarker risk score (BRS) with clinical risk score (CRS) enabled pre and postoperative assignment of patients to AKI risk categories. Combining BRS with CRS will allow better management of cardiac patients at risk of developing AKI.
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Affiliation(s)
- William T McBride
- Department of Cardiac Anaesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, BT12 6BA, Northern Ireland, UK
| | - Mary Jo Kurth
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - Gavin McLean
- Department of Cardiac Anaesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, BT12 6BA, Northern Ireland, UK
| | - Anna Domanska
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - John V Lamont
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - Daniel Maguire
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - Joanne Watt
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - Peter Fitzgerald
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK
| | - Ian Young
- School of Medicine, Dentistry and Biomedical Sciences, Queen's University of Belfast, 97 Lisburn Road, Health Sciences Building, Belfast, BT9 7BL, Northern Ireland, UK
| | - Jijin Joseph
- Department of Cardiac Anaesthesia, Belfast Health & Social Care Trust, 274 Grosvenor Road, Belfast, BT12 6BA, Northern Ireland, UK
| | - Mark W Ruddock
- Randox Laboratories Ltd, Clinical Studies Group, 55 Diamond Road, Crumlin, County Antrim, BT29 4QY, Northern Ireland, UK.
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Allen S, McBride WT, Young IS, MacGowan SW, McMurray TJ, Prabhu S, Penugonda SP, Armstrong MA. A clinical, renal and immunological assessment of Surface Modifying Additive Treated (SMART™) cardiopulmonary bypass circuits. Perfusion 2016; 20:255-62. [PMID: 16231621 DOI: 10.1191/0267659105pf815oa] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Biocompatible cardiopulmonary bypass (CPB) circuits aim to reduce contact activation and its physiological consequences. We investigated the hypothesis that use of Surface Modifying Additive (SMA)-treated circuits (Sorin Group Ltd) compared with non-SMA circuits would be associated with preservation of blood pressure during CPB and modulation of perioperative subclinical renal function (urinary α-1-microglobulin (α-1-m)) and plasma and urinary cytokine changes. In a study of low-risk CABG patients ( n=40), randomized to SMA ( n=20) versus non-SMA circuits ( n=20), we found better preserved blood pressure at CPB initiation in SMA patients (p <0.05), particularly in ACE-inhibited SMA patients ( n=11) versus ACE-inhibited non-SMA patients ( n=10) (p <0.05). Plasma anti-inflammatory IL-10, as well as urinary α-1-m, were elevated 48 hours postoperatively (p <0.05). SMA patients also had lower blood loss (p <0.05). SMA circuits have some clinical benefit, especially in ACE-inhibited patients.
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Affiliation(s)
- Stephen Allen
- Department of Anaesthetics and Intensive Care Medicine, The Queen's University of Belfast, Belfast, Northern Ireland.
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Brinkman R, HayGlass KT, Mutch W, Funk DJ. Acute Kidney Injury in Patients Undergoing Open Abdominal Aortic Aneurysm Repair: A Pilot Observational Trial. J Cardiothorac Vasc Anesth 2015; 29:1212-9. [DOI: 10.1053/j.jvca.2015.03.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Indexed: 12/14/2022]
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Heringlake M, Schön J, Paarmann H. The kidney in critical illness: how to monitor a pivotal organ system. Best Pract Res Clin Anaesthesiol 2014; 27:271-7. [PMID: 24012237 DOI: 10.1016/j.bpa.2013.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 05/08/2013] [Accepted: 06/12/2013] [Indexed: 01/03/2023]
Abstract
Acute kidney injury is an important complication in patients undergoing major and especially cardiac surgery and in the critically ill. Within the last years, several new modalities have been developed for monitoring of renal function that may be used for early detection of patients developing renal dysfunction as well as to monitor the effects of treatments on this pivotal organ. The present manuscript aims to give a critical overview about recent developments in the field.
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Affiliation(s)
- Matthias Heringlake
- Department of Anesthesiology, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany.
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Brøchner AC, Dagnaes-Hansen F, Højberg-Holm J, Toft P. The inflammatory response in blood and in remote organs following acute kidney injury. APMIS 2013; 122:399-404. [PMID: 24033773 DOI: 10.1111/apm.12157] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 07/04/2013] [Indexed: 01/20/2023]
Abstract
In patients with acute kidney injury (AKI) mortality remains high, despite the fact that the patients are treated with continuous renal replacement therapy. The interaction between the kidney and the immune system might explain the high mortality observed in AKI. In order to elucidate the interaction between the kidney and immune system we developed a two-hit model of AKI and endotoxemia. Our hypothesis was that ischemia/reperfusion (I/R) of the kidney simultaneously with endotoxemia would generate a more extensive inflammatory response compared to I/R of the hind legs. Our expectation was that elevated levels of cytokines would be found in both blood and in organs distant to the kidneys. Forty mice were divided into five groups. The mice were subjected to the following operations: A: Sham only, no lipopolysaccharide (LPS); B: I/R of both kidneys + LPS; C: LPS only; D: Nephrectomy + LPS; E: I/R of both hind legs + LPS. In groups B and E, I/R times were identical. All mice were kept alive for 24 h and then sacrificed. Levels of interleukin (IL)-1β, IL-6, IL-10, and tumor necrosis factor-α were measured in the blood. The activity of myeloperoxidase (MPO) in lungs, kidneys, and liver was evaluated as an indirect measurement of accumulation of granulocytes. In this study, significantly higher amount of IL-6 and IL-10 in the plasma was observed following renal I/R compared to hind leg I/R. The elevated levels of cytokine in plasma were observed following nephrectomy and endotoxemia. The neutrophil infiltration of distant organs measured by the levels of MPO in the lung and liver also showed a significantly higher level in renal I/R compared to hind leg I/R. Renal I/R is associated with a more pronounced inflammatory response in blood and distant organs. The high cytokine levels measured following nephrectomy might be explained by compromised elimination of cytokines by the kidney in AKI.
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Affiliation(s)
- Anne Craveiro Brøchner
- Department of Anesthesiology and Intensive Care Medicine, Odense University Hospital, Odense, Denmark
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McBride WT, Prasad PS, Armstrong M, Patterson C, Gilliland H, Drain A, Vuylsteke A, Latimer R, Khalil N, Evans A, Cambien F, Young I. Cytokine phenotype, genotype, and renal outcomes at cardiac surgery. Cytokine 2012; 61:275-84. [PMID: 23137784 DOI: 10.1016/j.cyto.2012.10.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 10/08/2012] [Accepted: 10/12/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cardiac surgery modulates pro- and anti-inflammatory cytokine balance involving plasma tumour necrosis factor alpha (TNFα) and interleukin-10 (IL-10) together with urinary transforming growth factor beta-1 (TGFβ1), interleukin-1 receptor antagonist (IL1ra) and tumour necrosis factor soluble receptor-2 (TNFsr2). Effects on post-operative renal function are unclear. We investigated if following cardiac surgery there is a relationship between cytokine (a) phenotype and renal outcome; (b) genotype and phenotype and (c) genotype and renal outcome. Since angiotensin-2 (AG2), modulates TGFβ1 production, we determined whether angiotensin converting enzyme insertion/deletion (ACE I/D) genotype affects urinary TGFβ1 phenotype as well as renal outcome. METHODS In 408 elective cardiac surgery patients we measured pre- and 24 h post-operative urinary TGFβ-1, IL1ra and TNFsr2 and pre- and 2 h post-operative plasma TNFα and IL-10. Post-operative responses were compared for each cytokine in patients grouped according to presence or absence of renal dysfunction defined as a drop from baseline eGFR of greater than 25% (as calculated by the method of modification of diet in renal disease (MDRD)) occurring (1) within the first 24 and (2) 48 postoperative hours (early renal dysfunction), (3) on the fifth postoperative day (late renal dysfunction) or (4) at any time throughout the 5 day postoperative period (early and late combined). Patient genotype was determined for TNF/G-308A, TGFβ1-509 C/T, IL10/G-1082A and ACE I/D. RESULTS Post-operative plasma IL-10 and urinary TGFβ1 responses were significantly higher in patients who developed early renal dysfunction. IL1ra and TNFsr2 responses were significantly lower 24h post-operatively in patients who developed late renal dysfunction. Genotype did not alter cytokine phenotype or outcome. CONCLUSIONS/INFERENCES: Cytokine profiling may help predict early and late renal dysfunction. Genotypes studied did not alter phenotype or outcome.
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Affiliation(s)
- William T McBride
- Department of Cardiac Anaesthesia, Belfast Health & Social Care Trust, Belfast BT12 6BA, Northern Ireland, UK.
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8
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Cheung WW, Paik KH, Mak RH. Inflammation and cachexia in chronic kidney disease. Pediatr Nephrol 2010; 25:711-24. [PMID: 20111974 DOI: 10.1007/s00467-009-1427-z] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Revised: 11/19/2009] [Accepted: 12/09/2009] [Indexed: 11/28/2022]
Abstract
Chronic inflammation is associated with cachexia and increased mortality risk in patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD). Inflammation suppresses appetite and causes the loss of protein stores. In CKD patients, increased serum levels of pro-inflammatory cytokines may be caused by reduced renal function, volume overload, oxidative or carbonyl stress, decreased levels of antioxidants, increased susceptibility to infection in uremia, and the presence of comorbid conditions. Cachexia is brought about by the synergistic combination of a dramatic decrease in appetite and an increase in the catabolism of fat and lean body mass. Pro-inflammatory cytokines act on the central nervous system to alter appetite and energy metabolism and to provide a signal-through the nuclear factor-kappaB and ATP-ubiquitin-dependent proteolytic pathways-that causes muscle wasting. Further research into the molecular pathways leading to inflammation and cachexia may lead to novel therapeutic therapies for this devastating and potentially fatal complication of chronic disease.
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Affiliation(s)
- Wai W Cheung
- Division of Pediatrics Nephrology, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093-0634, USA
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Brøchner AC, Dagnaes-Hansen F, Toft P. Effect of renal and non-renal ischemia/reperfusion on cell-mediated immunity in organs and plasma. APMIS 2010; 118:101-7. [PMID: 20132173 DOI: 10.1111/j.1600-0463.2009.02567.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Acute renal failure (ARF) is a common morbidity factor among patients in the intensive care unit, reaching an incidence from 3% to 30% depending on the definition of ARF and the population. Although the majority of the patients with ARF are treated with continuous renal replacement therapy, the mortality rate still remains above 50%. The causes of death are primarily extra-renal and include infection, shock, septicemia, and respiratory failure. We wanted to evaluate the cell-mediated inflammatory response of renal ischemia-reperfusion (I/R) and non-renal I/R, in blood and in distant organs. In our study, 80 mice were divided into four groups. The following surgeries were performed on the groups compared: bilateral renal I/R by clamping, unilateral renal ischemia, anesthesia only, and unilateral hind leg I/R. Half of the animals were killed after 2 h and the other half after 24 h. To assess the inflammatory response, we measured myeloperoxidase (MPO) in the organs, and CD 11b and major histocompatibility complex (MHC) II-positive cells in the blood. Non-renal I/R elicited the most elevated levels of MPO in extra-renal tissue such as the lungs. There was a trend toward higher MPO levels in the kidney following renal I/R. All kinds of I/R induced an upregulation of the adhesion molecule CD 11b and a downregulation of MHC II. Renal and non-renal I/R induced neutrophil infiltration in distant organs. Renal I/R does not induce a larger cell-mediated inflammatory response in blood and organs than non-renal I/R.
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Affiliation(s)
- Anne C Brøchner
- Department of Anesthesiology and Intensive Care Medicine, Odense University Hospital, Odense, Denmark.
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Pathophysiologie, Prophylaxe und Therapie von Herzchirurgie-assoziierten Nierenfunktionsstörungen. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2009. [DOI: 10.1007/s00398-009-0743-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Boldt J, Wolf M. RETRACTED: Identification of renal injury in cardiac surgery: the role of kidney-specific proteins. J Cardiothorac Vasc Anesth 2008; 22:122-132. [PMID: 18249347 DOI: 10.1053/j.jvca.2007.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Indexed: 12/12/2022]
Affiliation(s)
- Joachim Boldt
- Department of Anesthesiology and Intensive Care Medicine, Klinikum der Stadt Ludwigshafen, Bremserstr, Germany..
| | - Michael Wolf
- Department of Anesthesiology and Intensive Care Medicine, Klinikum der Stadt Ludwigshafen, Bremserstr, Germany
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Abstract
PURPOSE OF REVIEW The purpose of this review is to present developments in cardiopulmonary bypass circuitry, and to give the authors' opinions on the causes of the potentially harmful processes that are initiated by cardiopulmonary bypass, and how they may be attenuated. RECENT FINDINGS Much of the recently published work investigates the effect of various forms of biocompatible circuitry, either heparin bonded, or polymer coated. The increasing number of patients having off-pump coronary surgery allows comparison of such patients with those that have had surgery using the various forms of cardiopulmonary bypass circuitry. SUMMARY Recent developments of biocompatible circuits are promising in terms of their potential for reducing the perioperative inflammatory response. The use of such circuitry, however, is likely to be of benefit only when included as part of an overall strategy to control triggers of the inflammatory response during and after cardiac surgery, particularly in the high-risk patient.
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Allen SJ, McBride WT, McMurray TJ, Phillips AS, Penugonda SP, Campalani G, Young IS, Armstrong MA. Cell Salvage Alters the Systemic Inflammatory Response After Off-Pump Coronary Artery Bypass Grafting Surgery. Ann Thorac Surg 2007; 83:578-85. [PMID: 17257991 DOI: 10.1016/j.athoracsur.2006.09.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Revised: 09/08/2006] [Accepted: 09/11/2006] [Indexed: 11/15/2022]
Abstract
BACKGROUND Retransfused cardiotomy suction blood contains elevated inflammatory markers and is a bypass independent source of inflammatory mediators. We hypothesized that, during off-pump coronary artery bypass (OPCAB) grafting surgery, avoiding retransfusion of unwashed cardiotomy suction blood would beneficially alter both urinary and plasma cytokine concentrations and be renoprotective. METHODS Thirty-seven OPCAB surgery patients were randomly allocated to control (retransfusion of unwashed shed blood) and treatment (retransfusion of washed shed blood or discarding of unwashed blood) groups. Over 72 hours we measured plasma (tumor necrosis factor-alpha [TNF-alpha], interleukin-8, interleukin-6, interleukin-10, TNF soluble receptor-2, and interleukin-1 receptor antagonist) and urinary TNF soluble receptor-2 and interleukin-1 receptor antagonist and markers of renal injury and dysfunction (N-acetyl beta D glucosaminidase and alpha1-microglobulin). RESULTS We demonstrated elevated proinflammatory cytokines in cardiotomy suction blood, which were effectively eliminated by cell salvage. After retransfusion, in comparison with controls, the treatment group had reduced plasma TNF soluble receptor-2. As compared with controls, treatment group patients also demonstrated significantly reduced levels of the urinary anti-inflammatory cytokine TNF soluble receptor-2. There were no between group differences in markers of renal injury or dysfunction. CONCLUSIONS We have demonstrated that the management of shed mediastinal blood alters perioperative, systemic, plasma and urinary cytokine homeostasis at OPCAB surgery but does not impact on subclinical renal injury or dysfunction in this low risk group of patients.
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Affiliation(s)
- Stephen J Allen
- Department of Clinical Anaesthesia, Royal Group of Hospitals Trust, Belfast, Ireland.
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Brix-Christensen V, Vestergaard C, Andersen SK, Krog J, Andersen NT, Larsson A, Schmitz O, Tønnesen E. Evidence that acute hyperinsulinaemia increases the cytokine content in essential organs after an endotoxin challenge in a porcine model. Acta Anaesthesiol Scand 2005; 49:1429-35. [PMID: 16223385 DOI: 10.1111/j.1399-6576.2005.00859.x] [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] [Indexed: 01/04/2023]
Abstract
BACKGROUND Insulin has anti-inflammatory effects, as evaluated by its ability to reduce the plasma concentrations of cytokines. However, the inflammatory processing at the organ level is far less well established. The cytokine content in several organs after endotoxin (lipopolysaccharide, LPS) exposure and the effect of hyperinsulinaemia was examined. METHODS Pigs (35-40 kg) were randomized into four groups, anaesthetized and mechanically ventilated for 570 min: group 1 (anaesthesia only; n = 10), group 2 (hyperinsulinaemic euglycaemic clamp, HEC; n = 9), group 3 (LPS; n = 10) and group 4 (LPS + HEC; n = 9). LPS was infused intravenously for 180 min (total dosage, 10 microg/kg). At the end of the study, i.e. 330 min after the termination of LPS or equivalent, cytokine mRNA and cytokine protein contents in the lungs, heart, liver, adipose tissue and spleen were measured. RESULTS Hyperinsulinaemia led to increased interleukin-10 (IL-10) protein content in the heart and liver (by 40% and 28%, respectively) in comparison with normoinsulinaemic animals (P < 0.01 and P = 0.02, respectively), and increased tumour necrosis factor-alpha (TNF-alpha) protein content in the heart (P = 0.02). Animals exposed to LPS exhibited reduced TNF-alpha, IL-6 and IL-8 protein content in the heart (P = 0.02, P < 0.001 and P = 0.01, respectively). In the kidneys and adipose tissue, a particularly large cytokine protein content was observed. CONCLUSION The findings strongly substantiate the role of insulin as an immune-modifying hormone at organ level during baseline and after an endotoxin challenge. Moreover, the kidneys and adipose tissue appear to be pivotal organs in terms of cytokine content shortly after endotoxin exposure, but the complexity remains to be clarified.
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Affiliation(s)
- V Brix-Christensen
- Department of Anaesthesiology and Intensive Care, Aarhus University Hospital, Aarhus C, Denmark.
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Brix-Christensen V, Gjedsted J, Andersen SK, Vestergaard C, Nielsen J, Rix T, Nyboe R, Andersen NT, Larsson A, Schmitz O, Tønnesen E. Inflammatory response during hyperglycemia and hyperinsulinemia in a porcine endotoxemic model: the contribution of essential organs. Acta Anaesthesiol Scand 2005; 49:991-8. [PMID: 16045661 DOI: 10.1111/j.1399-6576.2005.00749.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND During euglycemia acute hyperinsulinemia diminishes the cytokine response to endotoxin [Lipopolysaccharide (LPS)] exposure. In this study we elucidated whether acute hyperglycemia and hyperinsulinemia modify the cytokine content in several organs during LPS challenge in a porcine model. METHODS Pigs (35-40 kg) were randomized to either normoglycemia (group 1, n = 8) or hyperglycemia and hyperinsulinemia (group 2, n = 8), anesthetized and mechanically ventilated. Both groups received a 180-min intravenous infusion of LPS (total 10 microg kg(-1)). Groups 1 and 2 were clamped at plasma glucose concentrations of 5 mM and 15 mM, respectively. Group 1 maintained a baseline insulin level while the hyperglycemic group exhibited increased insulin levels. RESULTS Circulating cytokines, cytokine mRNA and cytokine protein content were examined in the heart, liver, kidneys, lungs, spleen, adipose and muscle tissue. After LPS exposure, in both groups vast and equal plasma cytokines were elicited by approximately 70-5000-fold. A 10-fold higher level of IL-10, IL-6 and TNF-alpha protein was found in kidney tissue compared to the other organs together with a 3-10-fold increase of TNF-alpha in adipose tissue. However, cytokine mRNAs as well as organ function were without statistical difference between the groups. CONCLUSION Endotoxemia elicited a pronounced cytokine response in both plasma and at organ level. The kidneys and adipose tissue showed the highest cytokine protein content. Acute hyperglycemia apparently counteracts the well-established anti-inflammatory effects of insulin on the inflammatory response in a LPS challenged porcine model. Whether the observation can be extrapolated to more long-term stress-exposure remains to be clarified.
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Affiliation(s)
- V Brix-Christensen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark.
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Bove T, Calabrò MG, Landoni G, Aletti G, Marino G, Crescenzi G, Rosica C, Zangrillo A. The incidence and risk of acute renal failure after cardiac surgery. J Cardiothorac Vasc Anesth 2005; 18:442-5. [PMID: 15365924 DOI: 10.1053/j.jvca.2004.05.021] [Citation(s) in RCA: 178] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To evaluate outcome and risk factors of acute renal failure in a surgical population with or without preoperative renal dysfunction. DESIGN Observational study. SETTING Intensive care unit at a University Hospital. PARTICIPANTS Five thousand sixty-eight consecutive adult patients who underwent cardiac surgery with cardiopulmonary bypass. INTERVENTIONS Perioperative variables measured were age, sex, basic pathology, preoperative renal impairment defined as creatinine >1.4 mg/dL, ventricular dysfunction, preoperative neurologic event, chronic obstructive pulmonary disease, diabetes, type of surgery, use of intra-aortic balloon pump (IABP), cardiopulmonary bypass (CPB) duration, redo or emergency surgery, hemorrhage, blood transfusion, surgical revisions, and postoperative complications. MEASUREMENTS AND MAIN RESULTS Acute renal failure (100% creatinine increase) developed in 171 (3.4%) patients, whereas 94 patients (1.9% of the population) had renal replacement therapy. Hospital mortality was 40.9% in patients with acute renal failure and increased to 63.8% when renal replacement therapy was requested. Sex, age, emergency surgery, low ejection fraction, IABP device, redo, diabetes, mitral valve surgery, CPB duration, and preoperative renal disease were independently associated with acute renal failure at a multivariate analysis. CONCLUSION This study confirms that acute renal failure is one of the major complications of cardiac surgery, identifies the risk factors, and suggests that optimizing cardiac output and reducing CPB time could improve the outcome of patients at high risk of acute renal failure.
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Affiliation(s)
- Tiziana Bove
- Department of Cardiovascular Anesthesia, Vita-Salute University-IRCCS San Raffaele Hospital, via Olgettina (degree)60 20132 Milano, Italy.
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McBride WT, Allen S, Gormley SMC, Young IS, McClean E, MacGowan SW, Elliott P, McMurray TJ, Armstrong MA. Methylprednisolone favourably alters plasma and urinary cytokine homeostasis and subclinical renal injury at cardiac surgery. Cytokine 2005; 27:81-9. [PMID: 15242697 DOI: 10.1016/j.cyto.2004.03.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2003] [Revised: 03/17/2004] [Accepted: 03/30/2004] [Indexed: 11/22/2022]
Abstract
UNLABELLED Whilst elevated urinary transforming growth factor beta-1 (TGFbeta) is associated with chronic renal dysfunction its role in acute peri-operative renal dysfunction is unknown. In contrast, peri-operative increases in urinary IL-1 receptor antagonist (IL-1ra) and TNF soluble receptor-2 (TNFsr-2) mirror pro-inflammatory activity in the nephron and correlate with renal complications. Steroids modulate some plasma cytokines (decreasing TNFalpha, IL-8, IL-6 and increasing IL-10), whereas ability to reduce plasma and urinary TNFsr-2 and IL-1ra and peri-operative renal injury is unknown. Patients undergoing coronary artery bypass grafting with cardiopulmonary bypass (CPB) were randomised to receive methylprednisolone (n = 18) or placebo (n = 17) before induction of anaesthesia. Plasma and urinary pro- and anti-inflammatory cytokine balance was determined along with subclinical proximal tubular injury and dysfunction, measured by urinary N-acetyl-beta-d-glucosaminidase (NAG)/creatinine and alpha-1-microglobulin/creatinine ratios, respectively. In the control group compared with baseline, plasma IL-8, TNFalpha, IL-10, IL-1ra and TNFsr-2 were significantly elevated along with urinary IL-1ra, TNFsr-2 and TGFbeta1. Urinary NAG/creatinine and alpha-1-microglobulin/creatinine ratios rose from completion of revascularisation until 6 h with recovery at 24 h with a further rise in NAG/creatinine ratio at 48 h. Compared to placebo, the methylprednisolone group showed significantly reduced plasma IL-8, TNFalpha, IL-1ra and TNFsr-2 whereas plasma IL-10 increased. Compared to placebo, the methylprednisolone group demonstrated significantly reduced urinary NAG/creatinine ratio, TNFsr-2 and TGFbeta1 at 24 h whereas urinary alpha-1-microglobulin/creatinine ratios increased. CONCLUSIONS Methylprednisolone administration during cardiac surgery significantly reduces plasma and urinary TNFsr-2 and IL-1ra, urinary TGFbeta1 and subclinical renal injury but not dysfunction.
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Affiliation(s)
- William T McBride
- Department of Anaesthetics and Intensive Care Medicine, The Queen's University of Belfast, Belfast, Northern Ireland, Ireland.
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Abstract
Laparoscopy for urological surgery is a relatively recent surgical innovation. Some centres have substantial experience of single operations, but very few have experience with a comprehensive range. Our programme began with nephrectomy and pyeloplasty, and has expanded to provide for a living related kidney donor programme and for other procedures usually conducted open. Recently, it has included prostate and bladder cancer surgery. The learning curve and implications for anaesthesia are described on the basis of the experience of one anaesthetist with 124 patients. Perioperative care issues, in common with other abdominal laparoscopic procedures, relate to operating positions, the consequences of carbon dioxide under pressure in the abdomen and postoperative analgesia. There is only a small requirement for regional anaesthesia supplementation and invasive analgesia. The corporate laparoscopic cholecystectomy experience was used as the foundation for anaesthesia and to delineate specific organ system issues and any interventions. Significant differences were found in the spectrum of the urological patient population and comorbidity, notably renal function or dysfunction, and complications.
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Affiliation(s)
- I D Conacher
- Freeman Hospitals Trust, Newcastle upon Tyne, UK.
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Boldt J, Brenner T, Lang J, Kumle B, Isgro F. Kidney-Specific Proteins in Elderly Patients Undergoing Cardiac Surgery with Cardiopulmonary Bypass: Retracted. Anesth Analg 2003; 97:1582-1589. [PMID: 14633524 DOI: 10.1213/01.ane.0000090146.02929.2e] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
UNLABELLED In cardiac surgery, acute renal failure (ARF) is more likely in elderly patients than in younger patients. We assessed whether kidney function is different between elderly and younger cardiac surgery patients by measuring kidney-specific proteins. Forty consecutive patients aged <60 yr and 40 patients aged >70 yr without preoperative kidney dysfunction undergoing elective cardiac surgery with cardiopulmonary bypass (CPB) were included. Creatinine clearance and fractional excretion of sodium, as well as urine concentrations of N-acetyl-beta-D-glucosaminidase, alpha-1-microglobulin, glutathione transferase-pi (GST-pi), and glutathione transferase-alpha (GST-alpha) were measured after induction of anesthesia, at the end of surgery, and at the first and second postoperative days (PODs) on the intensive care unit. Patients' ages were 54 +/- 4 and 77 +/- 3 yr, respectively. Preoperative creatinine concentrations were without significant differences between the two groups. Fractional excretion of sodium was significantly higher after bypass in the elderly than in the younger patients. Urine concentrations of all kidney-specific proteins increased after CPB in the elderly (e.g., GST-pi from 16.2 +/- 3.4 to 27.7 +/- 3.9 microg/L), whereas they remained almost unchanged in the younger patients. Concentrations of all kidney-specific proteins were significantly larger in the elderly than in the younger patients even at the second POD. Although none of our patients suffered ARF requiring dialysis, increased post-CPB urine concentrations of kidney-specific proteins in the elderly suggest discrete and transient alterations in kidney integrity in comparison with a younger patient population undergoing cardiac surgery. IMPLICATIONS Measurement of kidney-specific proteins demonstrated that patients >70 yr (mean, 77 +/- 3 yr) undergoing cardiac surgery with cardiopulmonary bypass had moderate and transient alterations in kidney integrity compared with patients aged <60 yr (mean, 54 +/- 4 yr). These abnormalities were not detected with standard measures of kidney function (e.g., creatinine concentrations).
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Affiliation(s)
- Joachim Boldt
- *Department of Anesthesiology and Intensive Care Medicine and the †Clinic of Cardiac Surgery, Klinikum der Stadt Ludwigshafen, Ludwigshafen, Germany
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