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Yang X, Zhu L, Pan H, Yang Y. Cardiopulmonary bypass associated acute kidney injury: better understanding and better prevention. Ren Fail 2024; 46:2331062. [PMID: 38515271 PMCID: PMC10962309 DOI: 10.1080/0886022x.2024.2331062] [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: 10/17/2023] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
Cardiopulmonary bypass (CPB) is a common technique in cardiac surgery but is associated with acute kidney injury (AKI), which carries considerable morbidity and mortality. In this review, we explore the range and definition of CPB-associated AKI and discuss the possible impact of different disease recognition methods on research outcomes. Furthermore, we introduce the specialized equipment and procedural intricacies associated with CPB surgeries. Based on recent research, we discuss the potential pathogenesis of AKI that may result from CPB, including compromised perfusion and oxygenation, inflammatory activation, oxidative stress, coagulopathy, hemolysis, and endothelial damage. Finally, we explore current interventions aimed at preventing and attenuating renal impairment related to CPB, and presenting these measures from three perspectives: (1) avoiding CPB to eliminate the fundamental impact on renal function; (2) optimizing CPB by adjusting equipment parameters, optimizing surgical procedures, or using improved materials to mitigate kidney damage; (3) employing pharmacological or interventional measures targeting pathogenic factors.
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Affiliation(s)
- Xutao Yang
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
| | - Li Zhu
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
- The Jinhua Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China
| | - Hong Pan
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
| | - Yi Yang
- The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China
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Abubokha AOK, Li R, Li CH, Zalloom AM, Wei X. Early Outcomes of Minimally Invasive Right Anterior Thoracotomy vs. Median Full Sternotomy in Isolated Aortic Valve Replacement: A Propensity Score Analysis. Braz J Cardiovasc Surg 2024; 39:e20230108. [PMID: 38569069 PMCID: PMC10989319 DOI: 10.21470/1678-9741-2023-0108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 07/19/2023] [Indexed: 04/05/2024] Open
Abstract
INTRODUCTION This study aimed to compare the early postoperative outcomes of right anterior thoracotomy minimally invasive aortic valve replacement (RAT-MIAVR) surgery with those of median full sternotomy aortic valve replacement (MFS-AVR) approach with the goal of identifying potential benefits or drawbacks of each technique. METHODS This retrospective, observational, cohort study included 476 patients who underwent RAT-MIAVR or MFS-AVR in our hospital from January 2015 to January 2023. Of these, 107 patients (22.5%) underwent RAT-MIAVR, and 369 patients (77.5%) underwent MFS-AVR. Propensity score matching was used to minimize selection bias, resulting in 95 patients per group for analysis. RESULTS After propensity matching, two groups were comparable in preoperative characteristics. RAT-MIAVR group showed longer cardiopulmonary bypass time (130.24 ± 31.15 vs. 117.75 ± 36.29 minutes, P=0.012), aortic cross-clamping time (76.44 ± 18.00 vs. 68.49 ± 19.64 minutes, P=0.004), and longer operative time than MFS-AVR group (358.47 ± 67.11 minutes vs. 322.42 ± 63.84 minutes, P=0.000). RAT-MIAVR was associated with decreased hospitalization time after surgery, lower postoperative blood loss and drainage fluid, a reduced incidence of mediastinitis, increased left ventricular ejection fraction, and lower pacemaker use compared to MFS-AVR. However, there was no significant difference in the incidence of major complications and in-hospital mortality between the two groups. CONCLUSION RAT-MIAVR is a feasible and safe alternative procedure to MFS-AVR, with comparable in-hospital mortality and early follow-up. This minimally invasive approach may be a suitable option for patients requiring isolated aortic valve replacement.
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Affiliation(s)
- Anas O. Kh. Abubokha
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital,
Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei,
People’s Republic of China
| | - Rui Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital,
Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei,
People’s Republic of China
| | - Chen-he Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital,
Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei,
People’s Republic of China
| | - Ahmad M. Zalloom
- Tongji Medical College, Huazhong University of Science and
Technology, Wuhan, People’s Republic of China
| | - Xiang Wei
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital,
Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei,
People’s Republic of China
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Beukers AM, Bulte CSE, Bosch RJ, Eberl S, van den Brom CE, Loer SA, Vonk ABA. Optimization of cardiopulmonary bypass prime fluid to preserve microcirculatory perfusion during on-pump coronary artery bypass graft surgery: PRIME study protocol for a double-blind randomized trial. Trials 2024; 25:219. [PMID: 38532434 DOI: 10.1186/s13063-024-08053-5] [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: 10/27/2023] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Acute microcirculatory perfusion disturbances and organ edema are important factors leading to organ dysfunction during cardiac surgery with cardiopulmonary bypass (CPB). Priming of the CPB system with crystalloid or colloid fluids, which inevitably leads to hemodilution, could contribute to this effect. However, there is yet no optimal evidence-based strategy for this type of priming. Hence, we will investigate different priming strategies to reduce hemodilution and preserve microcirculatory perfusion. METHODS The PRIME study is a single-center double-blind randomized trial. Patients undergoing elective coronary artery bypass graft surgery with CPB will be randomized into three groups of prime fluid strategy: (1) gelofusine with crystalloid, (2) albumin with crystalloid, or (3) crystalloid and retrograde autologous priming. We aim to include 30 patients, 10 patients in each arm. The primary outcome is the change in microcirculatory perfusion. Secondary outcomes include colloid oncotic pressure; albumin; hematocrit; electrolytes; fluid balance and requirements; transfusion rates; and endothelial-, glycocalyx-, inflammatory- and renal injury markers. Sublingual microcirculatory perfusion will be measured using non-invasive sidestream dark field video microscopy. Microcirculatory and blood measurements will be performed at five consecutive time points during surgery up to 24 h after admission to the intensive care unit. DISCUSSION PRIME is the first study to assess the effect of different prime fluid strategies on microcirculatory perfusion in cardiac surgery with CPB. If the results suggest that a specific crystalloid or colloid prime fluid strategy better preserves microcirculatory perfusion during on-pump cardiac surgery, the current study may help to find the optimal pump priming in cardiac surgery. TRIAL REGISTRATION ClinicalTrials.gov NCT05647057. Registered on 04/25/2023. CLINICALTRIALS gov PRS: Record Summary NCT05647057, all items can be found in the protocol.
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Affiliation(s)
- Anne M Beukers
- Department of Anaesthesiology, Amsterdam UMC, VU University Amsterdam, Boelelaan 1117, Amsterdam, The Netherlands.
- Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands.
| | - Carolien S E Bulte
- Department of Anaesthesiology, Amsterdam UMC, VU University Amsterdam, Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
| | - Ruben J Bosch
- Department of Cardiothoracic Surgery, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Susanne Eberl
- Department of Anesthesiology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Charissa E van den Brom
- Department of Anaesthesiology, Amsterdam UMC, VU University Amsterdam, Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
- Laboratory for Experimental Intensive Care and Anesthesiology (LEICA), Amsterdam, UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Intensive Care Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Stephan A Loer
- Department of Anaesthesiology, Amsterdam UMC, VU University Amsterdam, Boelelaan 1117, Amsterdam, The Netherlands
| | - Alexander B A Vonk
- Department of Cardiothoracic Surgery, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
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Mathieu L, Beurton A, Rougier N, Flambard M, Germain C, Pernot M, Ouattara A. Heparin consumption and inflammatory response according to the coating of cardiopulmonary bypass circuits in cardiac surgery: A retrospective analysis. Perfusion 2023:2676591231215282. [PMID: 37944166 DOI: 10.1177/02676591231215282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
INTRODUCTION There are several types of surface treatments (coatings) aimed at improving the biocompatibility of cardiopulmonary bypass (CPB) circuit. Some coatings appear to require higher doses of heparin to maintain anticoagulation goals, and some of them might induce postoperative coagulopathy. In this study, we compared the amount of heparin required, postoperative bleeding, and inflammatory response according to three types of coatings. METHOD We retrospectively included 300 consecutive adult patients who underwent cardiac surgery with CPB and received one of three coatings (Phisio®, Trillium®, and Xcoating™). Our primary objective was to compare, according to coating, the amount of heparin required to maintain an ACT > 400s during CPB. Our secondary objectives were to compare postoperative bleeding for 48 h and CRP rate. RESULTS Baseline characteristics were comparable between groups except for age and preoperative CRP. We did not find a significant difference between the 3 coatings regarding the amount of heparin reinjected. However, we found less postoperative bleeding with the Xcoating™ circuit compared to the Phisio® circuit (-149 mL [-289; -26.5]; p = 0.02) and a lower elevation of CRP with the Phisio® circuit (2.8 times higher than preoperative CRP) compared to Trillium® (4.9 times higher) and Xcoating™ (6.4 times higher); p < 10-3. CONCLUSION The choice of coating did not influence the amount of heparin required during CPB; however, the post-CPB inflammatory syndrome may be impacted by this choice.
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Affiliation(s)
- Laurent Mathieu
- Department of Cardiovascular Surgery, Haut-Lévêque Hospital, Surgical Centre, Bordeaux University Hospital, Pessac, France
| | - Antoine Beurton
- Department of Cardiovascular Anesthesia and Critical Care, Haut-Lévêque Hospital, Bordeaux University Hospital, Bordeaux, France
- Univ. Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, F-33600 Pessac, France
| | - Nicolas Rougier
- Department of Cardiovascular Surgery, Haut-Lévêque Hospital, Surgical Centre, Bordeaux University Hospital, Pessac, France
| | - Maude Flambard
- Department of Cardiovascular Surgery, Haut-Lévêque Hospital, Surgical Centre, Bordeaux University Hospital, Pessac, France
| | - Christine Germain
- Research and Innovation Unit in Healthcare and Humanities (URISH), Bordeaux-University Hospital, Bordeaux, France
| | - Mathieu Pernot
- Department of Cardiovascular Surgery, Haut-Lévêque Hospital, Surgical Centre, Bordeaux University Hospital, Pessac, France
| | - Alexandre Ouattara
- Department of Cardiovascular Anesthesia and Critical Care, Haut-Lévêque Hospital, Bordeaux University Hospital, Bordeaux, France
- Univ. Bordeaux, INSERM, Biologie des maladies cardiovasculaires, U1034, F-33600 Pessac, France
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Diaz DM, Orton EC, de Rezende ML, Zersen K, Guillaumin J. Assessment of microcirculation variables and endothelial glycocalyx using sidestream dark field videomicroscopy in anesthetized dogs undergoing cardiopulmonary bypass. Front Vet Sci 2023; 10:1189738. [PMID: 37671279 PMCID: PMC10476349 DOI: 10.3389/fvets.2023.1189738] [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: 03/19/2023] [Accepted: 07/06/2023] [Indexed: 09/07/2023] Open
Abstract
Introduction To evaluate microcirculation and endothelial glycocalyx (eGC) variables using sidestream darkfield (SDF) videomicroscopy in canine cardiopulmonary bypass (CPB). Methods Dogs undergoing CPB for surgical correction of naturally-occurring cardiac disease were prospectively included. Variables collected included patient demographics, underlying cardiac disease, red blood cell flow (Flow), 4-25 μm vessel density (Density), absolute capillary blood volume (CBVabs), relative capillary blood volume (CBVrel) and eGC width assessed by perfused boundary region (PBR). Anesthetized healthy dogs were used as control. Microcirculation and eGC variables were compared at baseline under anesthesia (T0), on CPB prior to cross clamping (T1), after cross clamp removal following surgical correction (T2) and at surgical closure (T3). Results Twelve dogs were enrolled, including 10 with a complete dataset. Median Flow was 233.9, 79.9, 164.3, and 136.1 μm/s at T0, T1, T2, and T3, respectively, (p = 1.00). Median Density was 173.3, 118.4, 121.0 and 155.4 mm/mm2 at T0, T1, T2, and T3, respectively, (p = 1.00). Median CBVabs decreased over time: 7.4, 6.6, 4.8 and 4.7 103μm3 at T0, T1, T2, and T3, respectively, (p < 0.01). Median CBVrel increased over time: 1.1, 1.5,1.1, and 1.3 103μm3 at T0, T1, T2, and T3, respectively, (p < 0.001). Median PBR increased over time: 1.8, 2.1, 2.4, 2.1 μm at T0, T1, T2, and T3, respectively, (p < 0.001). Compared to control dogs (n = 8), CPB dogs had lower CBVabs at T0. Conclusion Alterations in eGC thickness and microvascular occur in dogs undergoing CPB for naturally-occurring cardiac disease.
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Affiliation(s)
| | | | | | | | - Julien Guillaumin
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
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Wang Q, Zuurbier CJ, Huhn R, Torregroza C, Hollmann MW, Preckel B, van den Brom CE, Weber NC. Pharmacological Cardioprotection against Ischemia Reperfusion Injury-The Search for a Clinical Effective Therapy. Cells 2023; 12:1432. [PMID: 37408266 DOI: 10.3390/cells12101432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 07/07/2023] Open
Abstract
Pharmacological conditioning aims to protect the heart from myocardial ischemia-reperfusion injury (IRI). Despite extensive research in this area, today, a significant gap remains between experimental findings and clinical practice. This review provides an update on recent developments in pharmacological conditioning in the experimental setting and summarizes the clinical evidence of these cardioprotective strategies in the perioperative setting. We start describing the crucial cellular processes during ischemia and reperfusion that drive acute IRI through changes in critical compounds (∆GATP, Na+, Ca2+, pH, glycogen, succinate, glucose-6-phosphate, mitoHKII, acylcarnitines, BH4, and NAD+). These compounds all precipitate common end-effector mechanisms of IRI, such as reactive oxygen species (ROS) generation, Ca2+ overload, and mitochondrial permeability transition pore opening (mPTP). We further discuss novel promising interventions targeting these processes, with emphasis on cardiomyocytes and the endothelium. The limited translatability from basic research to clinical practice is likely due to the lack of comorbidities, comedications, and peri-operative treatments in preclinical animal models, employing only monotherapy/monointervention, and the use of no-flow (always in preclinical models) versus low-flow ischemia (often in humans). Future research should focus on improved matching between preclinical models and clinical reality, and on aligning multitarget therapy with optimized dosing and timing towards the human condition.
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Affiliation(s)
- Qian Wang
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
| | - Coert J Zuurbier
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
| | - Ragnar Huhn
- Department of Anesthesiology, Kerckhoff-Clinic-Center for Heart, Lung, Vascular and Rheumatic Disease, Justus-Liebig-University Giessen, Benekestr. 2-8, 61231 Bad Nauheim, Germany
| | - Carolin Torregroza
- Department of Anesthesiology, Kerckhoff-Clinic-Center for Heart, Lung, Vascular and Rheumatic Disease, Justus-Liebig-University Giessen, Benekestr. 2-8, 61231 Bad Nauheim, Germany
| | - Markus W Hollmann
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
| | - Benedikt Preckel
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
| | - Charissa E van den Brom
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
| | - Nina C Weber
- Department of Anesthesiology-L.E.I.C.A., Amsterdam University Medical Centers, Location AMC, Cardiovascular Science, Meibergdreef 11, 1105 AZ Amsterdam, The Netherlands
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Cusack R, Leone M, Rodriguez AH, Martin-Loeches I. Endothelial Damage and the Microcirculation in Critical Illness. Biomedicines 2022; 10:biomedicines10123150. [PMID: 36551905 PMCID: PMC9776078 DOI: 10.3390/biomedicines10123150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Endothelial integrity maintains microcirculatory flow and tissue oxygen delivery. The endothelial glycocalyx is involved in cell signalling, coagulation and inflammation. Our ability to treat critically ill and septic patients effectively is determined by understanding the underpinning biological mechanisms. Many mechanisms govern the development of sepsis and many large trials for new treatments have failed to show a benefit. Endothelial dysfunction is possibly one of these biological mechanisms. Glycocalyx damage is measured biochemically. Novel microscopy techniques now mean the glycocalyx can be indirectly visualised, using sidestream dark field imaging. How the clinical visualisation of microcirculation changes relate to biochemical laboratory measurements of glycocalyx damage is not clear. This article reviews the evidence for a relationship between clinically evaluable microcirculation and biological signal of glycocalyx disruption in various diseases in ICU. Microcirculation changes relate to biochemical evidence of glycocalyx damage in some disease states, but results are highly variable. Better understanding and larger studies of this relationship could improve phenotyping and personalised medicine in the future. Damage to the glycocalyx could underpin many critical illness pathologies and having real-time information on the glycocalyx and microcirculation in the future could improve patient stratification, diagnosis and treatment.
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Affiliation(s)
- Rachael Cusack
- Department of Intensive Care Medicine, St. James’s Hospital, James’s Street, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, College Green, D02 R590 Dublin, Ireland
| | - Marc Leone
- Department of Anaesthesiology and Intensive Care Unit, Hospital Nord, Assistance Publique Hôpitaux de Marseille, Aix Marseille University, 13015 Marseille, France
| | - Alejandro H. Rodriguez
- Intensive Care Unit, Hospital Universitario Joan XXIII, 43005 Tarragona, Spain
- Institut d’Investigació Sanitària Pere Virgil, 43007 Tarragona, Spain
- Departament Medicina I Cirurgia, Universitat Rovira i Virgili, 43003 Tarragona, Spain
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ignacio Martin-Loeches
- Department of Intensive Care Medicine, St. James’s Hospital, James’s Street, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, College Green, D02 R590 Dublin, Ireland
- Correspondence:
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Bol ME, Huckriede JB, van de Pas KGH, Delhaas T, Lorusso R, Nicolaes GAF, Sels JEM, van de Poll MCG. Multimodal measurement of glycocalyx degradation during coronary artery bypass grafting. Front Med (Lausanne) 2022; 9:1045728. [PMID: 36523784 PMCID: PMC9744810 DOI: 10.3389/fmed.2022.1045728] [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] [Received: 09/15/2022] [Accepted: 11/02/2022] [Indexed: 11/04/2023] Open
Abstract
Background Glycocalyx shedding and subsequent endothelial dysfunction occur in many conditions, such as in sepsis, in critical illness, and during major surgery such as in coronary artery bypass grafting (CABG) where it has been shown to associate with organ dysfunction. Hitherto, there is no consensus about the golden standard in measuring glycocalyx properties in humans. The objective of this study was to compare different indices of glycocalyx shedding and dysfunction. To this end, we studied patients undergoing elective CABG surgery, which is a known cause of glycocalyx shedding. Materials and methods Sublingual glycocalyx thickness was measured in 23 patients by: 1) determining the perfused boundary region (PBR)-an inverse measure of glycocalyx thickness-by means of sidestream dark field imaging technique. This is stated double, 2) measuring plasma levels of the glycocalyx shedding products syndecan-1, hyaluronan, and heparan sulfate and 3) measuring plasma markers of impaired glycocalyx function and endothelial activation (Ang-2, Tie-2, E-selectin, and thrombomodulin). Measurements were performed directly after induction, directly after onset of cardiopulmonary bypass (CPB), and directly after cessation of CPB. We assessed changes over time as well as correlations between the various markers. Results The PBR increased from 1.81 ± 0.21 μm after induction of anesthesia to 2.27 ± 0.25 μm (p < 0.0001) directly after CPB was initiated and did not change further during CPB. A similar pattern was seen for syndecan-1, hyaluronan, heparan sulfate, Ang-2, Tie-2, and thrombomodulin. E-selectin levels also increased between induction and the start of CPB and increased further during CPB. The PBR correlated moderately with heparan sulfate, E-selectin, and thrombomodulin and weakly with Syndecan-1, hyaluronan, and Tie-2. Shedding markers syndecan-1 and hyaluronan correlated with all functional markers. Shedding marker heparan sulfate only correlated with Tie-2, thrombomodulin, and E-selectin. Thrombomodulin correlated with all shedding markers. Conclusion Our results show that glycocalyx thinning, illustrated by increased sublingual PBR and increased levels of shedding markers, is paralleled with impaired glycocalyx function and increased endothelial activation in CABG surgery with CPB. As correlations between different markers were limited, no single marker could be identified to represent the glycocalyx in its full complexity.
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Affiliation(s)
- Martine E. Bol
- Department of Intensive Care Medicine, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, Netherlands
| | - J. B. Huckriede
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - K. G. H. van de Pas
- Department of Intensive Care Medicine, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
| | - T. Delhaas
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - R. Lorusso
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, Netherlands
- Department of Cardio-Thoracic Surgery, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
| | - G. A. F. Nicolaes
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - J. E. M. Sels
- Department of Intensive Care Medicine, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
- Department of Cardiology, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
| | - M. C. G. van de Poll
- Department of Intensive Care Medicine, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, Netherlands
- Department of Surgery, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands
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9
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Chalkias A, Papagiannakis N, Mavrovounis G, Kolonia K, Mermiri M, Pantazopoulos I, Laou E, Arnaoutoglou E. Sublingual microcirculatory alterations during the immediate and early postoperative period: A systematic review and meta-analysis. Clin Hemorheol Microcirc 2021; 80:253-265. [PMID: 34719484 DOI: 10.3233/ch-211214] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The incidence of postoperative microcirculatory flow alterations and their effect on outcome have not been studied extensively. OBJECTIVE This systematic review and meta-analysis was designed to investigate the presence of sublingual microcirculatory flow alterations during the immediate and early postoperative period and their correlation with complications and survival. METHODS A systematic search of PubMed, Scopus, Embase, PubMed Central, and Google Scholar was conducted for relevant articles from January 2000 to March 2021. Eligibility criteria were randomized controlled and non-randomized trials. Case reports, case series, review papers, animal studies and non-English literature were excluded. The primary outcome was the assessment of sublingual microcirculatory alterations during the immediate and early postoperative period in adult patients undergoing surgery. Risk of bias was assessed with the Ottawa-Newcastle scale. Standard meta-analysis methods (random-effects models) were used to assess the difference in microcirculation variables. RESULTS Thirteen studies were included. No statistically significant difference was found between preoperative and postoperative total vessel density (p = 0.084; Standardized Mean Difference (SMD): -0.029; 95%CI: -0.31 to 0.26; I2 = 22.55%). Perfused vessel density significantly decreased postoperatively (p = 0.035; SMD: 0.344; 95%CI: 0.02 to 0.66; I2 = 65.66%), while perfused boundary region significantly increased postoperatively (p = 0.031; SMD: -0.415; 95%CI: -0.79 to -0.03; I2 = 37.21%). Microvascular flow index significantly decreased postoperatively (p = 0.028; SMD: 0.587; 95%CI: 0.06 to 1.11; I2 = 86.09%), while no statistically significant difference was found between preoperative and postoperative proportion of perfused vessels (p = 0.089; SMD: 0.53; 95%CI: -0.08 to 1.14; I2 = 70.71%). The results of the non-cardiac surgery post-hoc analysis were comparable except that no statistically significant difference in perfused vessel density was found (p = 0.69; SMD: 0.07; 95%CI: -0.26 to 0.39; I2 = 0%). LIMITATIONS The included studies investigate heterogeneous groups of surgical patients. There were no randomized controlled trials. CONCLUSIONS Significant sublingual microcirculatory flow alterations are present during the immediate and early postoperative period. Further research is required to estimate the correlation of sublingual microcirculatory flow impairment with complications and survival.
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Affiliation(s)
- Athanasios Chalkias
- Department of Anesthesiology, University ofThessaly, Faculty of Medicine, Larisa, Greece.,Outcomes Research Consortium, Cleveland, OH, USA
| | - Nikolaos Papagiannakis
- First Department of Neurology, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Georgios Mavrovounis
- Department of Emergency Medicine, University of Thessaly, Faculty of Medicine, Larisa, Greece
| | - Konstantina Kolonia
- Department of Anesthesiology, University ofThessaly, Faculty of Medicine, Larisa, Greece
| | - Maria Mermiri
- Department of Anesthesiology, University ofThessaly, Faculty of Medicine, Larisa, Greece
| | - Ioannis Pantazopoulos
- Department of Emergency Medicine, University of Thessaly, Faculty of Medicine, Larisa, Greece
| | - Eleni Laou
- Department of Anesthesiology, University ofThessaly, Faculty of Medicine, Larisa, Greece
| | - Eleni Arnaoutoglou
- Department of Anesthesiology, University ofThessaly, Faculty of Medicine, Larisa, Greece
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10
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Puchwein-Schwepcke A, Genzel-Boroviczény O, Nussbaum C. The Endothelial Glycocalyx: Physiology and Pathology in Neonates, Infants and Children. Front Cell Dev Biol 2021; 9:733557. [PMID: 34540845 PMCID: PMC8440834 DOI: 10.3389/fcell.2021.733557] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/12/2021] [Indexed: 11/13/2022] Open
Abstract
The endothelial glycocalyx (EG) as part of the endothelial surface layer (ESL) is an important regulator of vascular function and homeostasis, including permeability, vascular tone, leukocyte recruitment and coagulation. Located at the interface between the endothelium and the blood stream, this highly fragile structure is prone to many disruptive factors such as inflammation and oxidative stress. Shedding of the EG has been described in various acute and chronic diseases characterized by endothelial dysfunction and angiopathy, such as sepsis, trauma, diabetes and cardiovascular disease. Circulating EG components including syndecan-1, hyaluronan and heparan sulfate are being evaluated in animal and clinical studies as diagnostic and prognostic markers in several pathologies, and advances in microscopic techniques have enabled in vivo assessment of the EG. While research regarding the EG in adult physiology and pathology has greatly advanced throughout the last decades, our knowledge of the development of the glycocalyx and its involvement in pathological conditions in the pediatric population is limited. Current evidence suggests that the EG is present early during fetal development and plays a critical role in vessel formation and maturation. Like in adults, EG shedding has been demonstrated in acute inflammatory conditions in infants and children and chronic diseases with childhood-onset. However, the underlying mechanisms and their contribution to disease manifestation and progression still need to be established. In the future, the glycocalyx might serve as a marker to identify pediatric patients at risk for vascular sequelae and as a potential target for early interventions.
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Affiliation(s)
- Alexandra Puchwein-Schwepcke
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany.,Department of Pediatric Neurology and Developmental Medicine, University of Basel Children's Hospital, Basel, Switzerland
| | - Orsolya Genzel-Boroviczény
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Claudia Nussbaum
- Division of Neonatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
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11
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Greenwood JC, Jang DH, Spelde AE, Gutsche JT, Horak J, Acker MA, Kilbaugh TJ, Shofer FS, Augoustides JG, Bakker J, Abella BS. Low Microcirculatory Perfused Vessel Density and High Heterogeneity are Associated With Increased Intensity and Duration of Lactic Acidosis After Cardiac Surgery with Cardiopulmonary Bypass. Shock 2021; 56:245-254. [PMID: 33394972 PMCID: PMC9887933 DOI: 10.1097/shk.0000000000001713] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Lactic acidosis after cardiac surgery with cardiopulmonary bypass is common and associated with an increase in postoperative morbidity and mortality. A number of potential causes for an elevated lactate after cardiopulmonary bypass include cellular hypoxia, impaired tissue perfusion, ischemic-reperfusion injury, aerobic glycolysis, catecholamine infusions, and systemic inflammatory response after exposure to the artificial cardiopulmonary bypass circuit. Our goal was to examine the relationship between early abnormalities in microcirculatory convective blood flow and diffusive capacity and lactate kinetics during early resuscitation in the intensive care unit. We hypothesized that patients with impaired microcirculation after cardiac surgery would have a more severe postoperative hyperlactatemia, represented by the lactate time-integral of an arterial blood lactate concentration greater than 2.0 mmol/L. METHODS We measured sublingual microcirculation using incident darkfield video microscopy in 50 subjects on intensive care unit admission after cardiac surgery. Serial measurements of systemic hemodynamics, blood gas, lactate, and catecholamine infusions were recorded each hour for the first 6 h after surgery. Lactate area under the curve (AUC) was calculated over the first 6 h. The lactate AUC was compared between subjects with normal and low perfused vessel density (PVD < 18 mm/mm2), high microcirculatory heterogeneity index (MHI > 0.4), and low vessel-by-vessel microvascular flow index (MFIv < 2.6). RESULTS Thirteen (26%) patients had a low postoperative PVD, 20 patients (40%) had a high MHI, and 26 (52%) patients had a low MFIv. Patients with low perfused vessel density had higher lactate AUC compared with subjects with a normal PVD (22.3 [9.4-31.0] vs. 2.6 [0-8.8]; P < 0.0001). Patients with high microcirculatory heterogeneity had a higher lactate AUC compared with those with a normal MHI (2.5 [0.1-8.2] vs. 13.1 [3.7-31.1]; P < 0.001). We did not find a difference in lactate AUC when comparing high and low MFIv. CONCLUSION Low perfused vessel density and high microcirculatory heterogeneity are associated with an increased intensity and duration of lactic acidosis after cardiac surgery with cardiopulmonary bypass.
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Affiliation(s)
- John C. Greenwood
- Division of Critical Care Medicine, Department of Emergency Medicine, Department of Anesthesiology and Critical Care, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - David H. Jang
- Division of Medical Toxicology and Critical Care Medicine, Department of Emergency Medicine, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Audrey E. Spelde
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jacob T. Gutsche
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jiri Horak
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael A. Acker
- Division of Cardiovascular Surgery, Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Todd J. Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Center for Mitochondrial and Epigenomic Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Frances S. Shofer
- Department of Epidemiology and Biostatistics, Department of Emergency Medicine Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - John G.T. Augoustides
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jan Bakker
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, New York
- Department of Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, the Netherlands
- Department of Intensive Medicine, The Pontifical Catholic University of Chile, Santiago, Región Metropolitana, Chile
| | - Benjamin S. Abella
- Department of Emergency Medicine, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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12
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Hahn RG, Patel V, Dull RO. Human glycocalyx shedding: Systematic review and critical appraisal. Acta Anaesthesiol Scand 2021; 65:590-606. [PMID: 33595101 DOI: 10.1111/aas.13797] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND The number of studies measuring breakdown products of the glycocalyx in plasma has increased rapidly during the past decade. The purpose of the present systematic review was to assess the current knowledge concerning the association between plasma concentrations of glycocalyx components and structural assessment of the endothelium. METHODS We performed a literature review of Pubmed to determine which glycocalyx components change in a wide variety of human diseases and conditions. We also searched for evidence of a relationship between plasma concentrations and the thickness of the endothelial glycocalyx layer as obtained by imaging methods. RESULTS Out of 3,454 publications, we identified 228 that met our inclusion criteria. The vast majority demonstrate an increase in plasma glycocalyx products. Sepsis and trauma are most frequently studied, and comprise approximately 40 publications. They usually report 3-4-foldt increased levels of glycocalyx degradation products, most commonly of syndecan-1. Surgery shows a variable picture. Cardiac surgery and transplantations are most likely to involve elevations of glycocalyx degradation products. Structural assessment using imaging methods show thinning of the endothelial glycocalyx layer in cardiovascular conditions and during major surgery, but thinning does not always correlate with the plasma concentrations of glycocalyx products. The few structural assessments performed do not currently support that capillary permeability is increased when the plasma levels of glycocalyx fragments in plasma are increased. CONCLUSIONS Shedding of glycocalyx components is a ubiquitous process that occurs during both acute and chronic inflammation with no sensitivity or specificity for a specific disease or condition.
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Affiliation(s)
- Robert G. Hahn
- Research UnitSödertälje Hospital Södertälje Sweden
- Karolinska Institute at Danderyds Hospital (KIDS) Stockholm Sweden
| | - Vasu Patel
- Department of Internal Medicine Northwestern Medicine McHenry Hospital McHenry IL USA
| | - Randal O. Dull
- Department of Anesthesiology, Pathology, Physiology, Surgery University of ArizonaCollege of Medicine Tucson AZ USA
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13
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Greenwood JC, Jang DH, Hallisey SD, Gutsche JT, Horak J, Acker MA, Bermudez CA, Zhou VL, Chatterjee S, Shofer FS, Kilbaugh TJ, Augoustides JGT, Meyer NJ, Bakker J, Abella BS. Severe Impairment of Microcirculatory Perfused Vessel Density Is Associated With Postoperative Lactate and Acute Organ Injury After Cardiac Surgery. J Cardiothorac Vasc Anesth 2021; 35:106-115. [PMID: 32505603 PMCID: PMC7666105 DOI: 10.1053/j.jvca.2020.04.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Resuscitation after cardiac surgery needs to address multiple pathophysiological processes that are associated with significant morbidity and mortality. Functional microcirculatory derangements despite normal systemic hemodynamics have been previously described but must be tied to clinical outcomes. The authors hypothesized that microcirculatory dysfunction after cardiac surgery would include impaired capillary blood flow and impaired diffusive capacity and that subjects with the lowest quartile of perfused vessel density would have an increased postoperative lactate level and acute organ injury scores. DESIGN Prospective, observational study. SETTING A single, tertiary university cardiovascular surgical intensive care unit. PARTICIPANTS 25 adults undergoing elective cardiac surgery requiring cardiopulmonary bypass. INTERVENTION Sublingual microcirculation was imaged using incident dark field microscopy before and 2 to 4 hours after surgery in the intensive care unit. MEASUREMENTS AND MAIN RESULTS Compared with baseline measurements, postoperative vessel-by-vessel microvascular flow index (2.9 [2.8-2.9] v 2.5 [2.4-2.7], p < 0.0001) and perfused vessel density were significantly impaired (20.7 [19.3-22.9] v 16.3 [12.8-17.9], p < 0.0001). The lowest quartile of perfused vessel density (<12.8 mm/mm2) was associated with a significantly increased postoperative lactate level (6.0 ± 2.9 v 1.8 ± 1.2, p < 0.05), peak lactate level (7.6 ± 2.8 v 2.8 ± 1.5, p = 0.03), and sequential organ failure assessment (SOFA) score at 24 and 48 hours. CONCLUSION In patients undergoing cardiac surgery, there was a significant decrease in postoperative microcirculatory convective blood flow and diffusive capacity during early postoperative resuscitation. Severely impaired perfused vessel density, represented by the lowest quartile of distribution, is significantly related to hyperlactatemia and early organ injury.
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Affiliation(s)
- John C Greenwood
- Division of Critical Care Medicine, Department of Emergency Medicine, Department of Anesthesiology and Critical Care, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA.
| | - David H Jang
- Division of Medical Toxicology and Critical Care Medicine, Department of Emergency Medicine, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Stephen D Hallisey
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, MA
| | - Jacob T Gutsche
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Jiri Horak
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Michael A Acker
- Division of Cardiovascular Surgery, Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Christian A Bermudez
- Division of Cardiovascular Surgery, Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Victoria L Zhou
- Department of Emergency Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA
| | - Shampa Chatterjee
- Department of Physiology, Institute for Environmental Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Frances S Shofer
- Epidemiology and Biostatistics, Department of Emergency Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA
| | - Todd J Kilbaugh
- Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Center for Mitochondrial and Epigenomic Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - John G T Augoustides
- Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Nuala J Meyer
- Division of Pulmonary and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Jan Bakker
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, NY; Department of Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Department of Intensive Medicine, The Pontifical Catholic University of Chile
| | - Benjamin S Abella
- Department of Emergency Medicine, Center for Resuscitation Science, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
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14
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Condello I, Santarpino G, Nasso G, Fiore F, Moscarelli M, Mastroroberto P, Speziale G. Air, inflammation and biocompatibility of the extracorporeal circuits. Perfusion 2020; 36:781-785. [PMID: 33112217 DOI: 10.1177/0267659120968364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The inflammatory response in cardiac surgery using extracorporeal circulation (ECC) has been widely discussed in the literature with analysis on cytokines released in humans; demonstrating manifold trigger causes. To mitigate this response-mainly linked to the contact and recognition by the blood of a "non-self" surface-many efforts have been made to make the circuits of the extra-corporeal circulation "biomimetics"; trying to emulate the cardio-vascular system. In other words, biomedical companies have developed many biocompatible products in order to reduce the invasiveness of the ECC. One of the techniques used to reduce the contact of blood with "nonself" surfaces is the "coating" of the internal surfaces of the ECC. This can be done with phospholipidic, electrically neutral, and heparin derivates with anticoagulant activity. The coating can be divided into two categories: the "passive coating" with Phosphorylcholine by biomedical companies and the administration of albumin added to the "priming" during the filling of the circuit by the perfusionist. Alternatively, we have the "active" coating: treatment of the internal surfaces in contact with the blood with neutral proteins and heparin. The latter are different according to the production company, but the aim is always to maintain high levels of systemic and local anticoagulation, inactivating the "contact" coagulation between the blood and the surfaces. A recent study demonstrates that the use of an "active coating" is associated with better preservation of the endothelial glycocalyx compared with "passive coating" circuits.
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Affiliation(s)
- Ignazio Condello
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Giuseppe Santarpino
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy.,Paracelsus Medical University, Nuremberg, Germany.,Department of Experimental and Clinical Medicine, Cardiac Surgery Unit, "Magna Graecia" University of Catanzaro, Italy
| | - Giuseppe Nasso
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Flavio Fiore
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Marco Moscarelli
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Pasquale Mastroroberto
- Department of Experimental and Clinical Medicine, Cardiac Surgery Unit, "Magna Graecia" University of Catanzaro, Italy
| | - Giuseppe Speziale
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
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15
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Liu HQ, Li J, Xuan CL, Ma HC. A review on the physiological and pathophysiological role of endothelial glycocalyx. J Biochem Mol Toxicol 2020; 34:e22571. [PMID: 32659867 DOI: 10.1002/jbt.22571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/02/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022]
Abstract
The glycocalyx is a gel-like layer covering the luminal surface of vascular endothelial cells. It comprises of membrane-attached proteoglycans, glycosaminoglycan chains, glycoproteins, and adherent plasma proteins. The glycocalyx maintains homeostasis of the vasculature, which includes controlling vascular permeability and microvascular tone, preventing microvascular thrombosis, and regulating leukocyte adhesion. In the past decades, the number of studies on endothelial glycocalyx has steadily grown. Glycocalyx emerged as an essential part of blood vessels involved in multiple physiological functions. Damage to glycocalyx is associated with many types of diseases. The structure and physiology and pathophysiology of the glycocalyx, as well as the clinical effects of glycocalyx degradation, are addressed throughout this study. We strive in particular to define therapeutic approaches for the survival or reparation of the glycocalyx.
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Affiliation(s)
- Huan-Qiu Liu
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Ji Li
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Cheng-Luan Xuan
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hai-Chun Ma
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
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16
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Robich M, Ryzhov S, Kacer D, Palmeri M, Peterson SM, Quinn RD, Carter D, Sheppard F, Hayes T, Sawyer DB, Rappold J, Prudovsky I, Kramer RS. Prolonged Cardiopulmonary Bypass is Associated With Endothelial Glycocalyx Degradation. J Surg Res 2020; 251:287-295. [PMID: 32199337 DOI: 10.1016/j.jss.2020.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/23/2020] [Accepted: 02/16/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND The endothelial glycocalyx (EG) is involved in critical regulatory mechanisms that maintain endothelial vascular integrity. We hypothesized that prolonged cardiopulmonary bypass (CPB) may be associated with EG degradation. We performed an analysis of soluble syndecan-1 levels in relation to duration of CPB, as well as factors associated with cell stress and damage, such as mitochondrial DNA (mtDNA) and inflammation. METHODS Blood samples from subjects undergoing cardiac surgery with CPB (n = 54) were obtained before and during surgery, 4-8 h and 24 h after completion of CPB, and on postoperative day 4. Flow cytometry was used to determine subpopulations of white blood cells. Plasma levels of mtDNA were determined using quantitative polymerase chain reaction and plasma content of shed syndecan-1 was measured. To determine whether syndecan-1 was signaling white blood cells, the effect of recombinant syndecan-1 on mobilization of neutrophils from bone marrow was tested in mice. RESULTS CPB is associated with increased mtDNA during surgery, increased syndecan-1 blood levels at 4-8 h, and increased white blood cell count at 4-8 h and 24 h. Correlation analysis revealed significant positive associations between time on CPB and syndecan-1 (rs = 0.488, P < 0.001) and level of syndecan-1 and neutrophil count (rs = 0.351, P = 0.038) at 4-8 h. Intravenous administration of recombinant syndecan-1 in mice resulted in a 2.5-fold increase in the number of circulating neutrophils, concurrent with decreased bone marrow neutrophil number. CONCLUSIONS Longer duration of CPB is associated with increased plasma levels of soluble syndecan-1, a signal for EG degradation, which can induce neutrophil egress from the bone marrow. Development of therapy targeting EG shedding may be beneficial in patients with prolonged CPB.
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Affiliation(s)
- Michael Robich
- Maine Medical Center Cardiovascular Institute, Portland, Maine; Maine Medical Center Research Institute, Scarborough, Maine
| | - Sergey Ryzhov
- Maine Medical Center Research Institute, Scarborough, Maine
| | - Doreen Kacer
- Maine Medical Center Research Institute, Scarborough, Maine
| | - Monica Palmeri
- Maine Medical Center Cardiovascular Institute, Portland, Maine; Maine Medical Center Research Institute, Scarborough, Maine
| | | | - Reed D Quinn
- Maine Medical Center Cardiovascular Institute, Portland, Maine
| | - Damien Carter
- Maine Medical Center Research Institute, Scarborough, Maine; Maine Medical Center, Department of Surgery, Portland, Maine
| | - Forest Sheppard
- Maine Medical Center, Department of Surgery, Portland, Maine
| | - Timothy Hayes
- Maine Medical Center, Department of Pathology, Portland, Maine
| | - Douglas B Sawyer
- Maine Medical Center Cardiovascular Institute, Portland, Maine; Maine Medical Center Research Institute, Scarborough, Maine
| | - Joseph Rappold
- Maine Medical Center Cardiovascular Institute, Portland, Maine; Maine Medical Center Research Institute, Scarborough, Maine; Maine Medical Center, Department of Surgery, Portland, Maine
| | - Igor Prudovsky
- Maine Medical Center Research Institute, Scarborough, Maine
| | - Robert S Kramer
- Maine Medical Center Cardiovascular Institute, Portland, Maine; Maine Medical Center Research Institute, Scarborough, Maine.
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