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Abstract
Over 2 years have passed since the start of the COVID-19 pandemic, which has claimed millions of lives. Unlike the early days of the pandemic, when management decisions were based on extrapolations from in vitro data, case reports and case series, clinicians are now equipped with an armamentarium of therapies based on high-quality evidence. These treatments are spread across seven main therapeutic categories: anti-inflammatory agents, antivirals, antithrombotics, therapies for acute hypoxaemic respiratory failure, anti-SARS-CoV-2 (neutralizing) antibody therapies, modulators of the renin-angiotensin-aldosterone system and vitamins. For each of these treatments, the patient population characteristics and clinical settings in which they were studied are important considerations. Although few direct comparisons have been performed, the evidence base and magnitude of benefit for anti-inflammatory and antiviral agents clearly outweigh those of other therapeutic approaches such as vitamins. The emergence of novel variants has further complicated the interpretation of much of the available evidence, particularly for antibody therapies. Importantly, patients with acute and chronic kidney disease were under-represented in many of the COVID-19 clinical trials, and outcomes in this population might differ from those reported in the general population. Here, we examine the clinical evidence for these therapies through a kidney medicine lens.
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Chang K, Li Y, Qin Z, Zhang Z, Wang L, Yang Q, Geng J, Deng N, Chen S, Su B. Effect of extracorporeal hemoadsorption in critically ill patients with COVID-19: A narrative review. Front Immunol 2023; 14:1074465. [PMID: 36817416 PMCID: PMC9936071 DOI: 10.3389/fimmu.2023.1074465] [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: 10/19/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
COVID-19 has been affecting the world unprecedentedly and will remain widely prevalent due to its elusive pathophysiological mechanism and the continuous emergence of new variants. Critically ill patients with COVID-19 are commonly associated with cytokine storm, multiple organ dysfunction, and high mortality. To date, growing evidence has shown that extracorporeal hemoadsorption can exert its adjuvant effect to standard of care by regulating immune homeostasis, reducing viremia, and decreasing endotoxin activity in critically ill COVID-19 cases. However, the selection of various hemofilters, timing of initiation and termination of hemoadsorption therapy, anticoagulation management of extracorporeal circuits, identification of target subgroups, and ultimate survival benefit remain controversial. The purpose of this narrative review is to comprehensively summarize the rationale for the use of hemoadsorption in critically ill patients with COVID-19 and to gather the latest clinical evidence in this field.
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Affiliation(s)
- Kaixi Chang
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Yupei Li
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Zheng Qin
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuyun Zhang
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Liya Wang
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Qinbo Yang
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiwen Geng
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Ningyue Deng
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Shanshan Chen
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Baihai Su
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China.,Med+ Biomaterial Institute of West China Hospital, Sichuan University, Chengdu, China
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Ali RM, Tharwat AI, Labib HA. Effect of Aspirin Use on clinical Outcome among Critically Ill Patients with COVID- 19. EGYPTIAN JOURNAL OF ANAESTHESIA 2022. [DOI: 10.1080/11101849.2022.2139104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Rania M. Ali
- Department of Anesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ayman I. Tharwat
- Department of Anesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Heba A. Labib
- Department of Anesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Goshua G, Bendapudi PK, Lee AI. Thrombosis questions from the inpatient wards. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2022; 2022:481-490. [PMID: 36485139 PMCID: PMC9819989 DOI: 10.1182/hematology.2022000384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The multifaceted pathophysiologic processes that comprise thrombosis and thromboembolic diseases take on a particular urgency in the hospitalized setting. In this review, we explore 3 cases of thrombosis from the inpatient wards: purpura fulminans, cancer-associated thrombosis with thrombocytopenia, and coronavirus disease 2019 (COVID-19) and the use of dose-escalated anticoagulation therapy and antiplatelet agents. We discuss the evaluation and management of purpura fulminans and the roles of plasma transfusion, protein C and antithrombin replacement, and anticoagulation in treating this disease. We present a framework for evaluating the etiologies of thrombocytopenia in cancer and review 2 strategies for anticoagulation management in patients with cancer-associated thrombosis and thrombocytopenia, including recent prospective data supporting the use of dose-modified anticoagulation based on platelet count. Last, we dissect the major clinical trials of therapeutic- and intermediate-dose anticoagulation and antiplatelet therapy in hospitalized patients with COVID-19, reviewing key recommendations from consensus guidelines while highlighting ways in which institutional and patient-tailored practices regarding antithrombotic therapies in COVID-19 may differ. Together, the cases highlight the diverse and dramatic presentations of macro- and microvascular thrombosis as encountered on the inpatient wards.
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Affiliation(s)
- George Goshua
- Section of Hematology, Yale School of Medicine, New Haven, CT
| | - Pavan K Bendapudi
- Division of Hematology, Blood Transfusion Service, Massachusetts General Hospital; Division of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center; and Harvard Medical School, Boston, MA
| | - Alfred Ian Lee
- Section of Hematology, Yale School of Medicine, New Haven, CT
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55
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Marshall JC, Leligdowicz A. Gaps and opportunities in sepsis translational research. EBioMedicine 2022; 86:104387. [PMID: 36470831 PMCID: PMC9783171 DOI: 10.1016/j.ebiom.2022.104387] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/31/2022] [Accepted: 11/17/2022] [Indexed: 12/04/2022] Open
Abstract
Infection initiates sepsis, but the clinical disease arises through the innate immune response of the host. A rapidly evolving understanding of the biology of that response has not been paralleled by the development of successful new treatment. The COVID-19 pandemic has begun to change this revealing the promise of distinct therapeutic approaches and the feasibility of new approaches to evaluate them. We review the history of mediator-targeted therapy for sepsis and explore the conceptual, biological, technological, and organizational challenges that must be addressed to enable the development of effective treatments for a leading cause of global morbidity and mortality.
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Affiliation(s)
- John C. Marshall
- Departments of Surgery and Critical Care Medicine, Unity Health Toronto, University of Toronto, Canada,Corresponding author. 4th Floor Bond Wing, Rm. 4-007, St. Michael's Hospital, 30 Bond Street, Toronto, Ontario, M5B 1W8, Canada.
| | - Aleksandra Leligdowicz
- Departments of Medicine and Critical Care Medicine, University of Western Ontario, Canada
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56
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Abstract
PURPOSE OF REVIEW The coronavirus disease 2019 (COVID-19) pandemic has posed great challenges to intensive care units (ICUs) across the globe. The objective of this review is to provide an overview on how ICU surging was managed during COVID-19 pandemic, with a special focus on papers published in the last 18 months. RECENT FINDINGS From the onset of the COVID-19 pandemic, it was apparent that the biggest challenge was the inequity of access to an adequately equipped and staffed ICU bed. The first wave was overwhelming; large surge of patients required critical care, resources were limited and non-COVID-19 care processes were severely compromised. Various approaches were used to address ICU staffing shortage and to expand the physical ICU space capacity. Because of restrictions to family visitations in most ICUs, the pandemic posed a threat to communication and family-centered ICU care. The pandemic, especially during the first wave, was accompanied by a high level of apprehension in the community, many uncertainties about clinical course and therapy and an influx of speculations and misinformation. SUMMARY Although healthcare systems learned how to face some of the challenges with subsequent waves, the pandemic had persistent effects on healthcare systems.
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57
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Eikelboom JW, Jolly SS, Belley-Cote EP, Whitlock RP, Rangarajan S, Xu L, Heenan L, Bangdiwala SI, Luz Diaz M, Diaz R, Yusufali A, Kumar Sharma S, Tarhuni WM, Hassany M, Avezum A, Harper W, Wasserman S, Almas A, Drapkina O, Felix C, Lopes RD, Berwanger O, Lopez-Jaramillo P, Anand SS, Bosch J, Choudhri S, Farkouh ME, Loeb M, Yusuf S. Colchicine and the combination of rivaroxaban and aspirin in patients hospitalised with COVID-19 (ACT): an open-label, factorial, randomised, controlled trial. THE LANCET. RESPIRATORY MEDICINE 2022; 10:1169-1177. [PMID: 36228641 PMCID: PMC9635892 DOI: 10.1016/s2213-2600(22)00298-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND COVID-19 disease is accompanied by a dysregulated immune response and hypercoagulability. The Anti-Coronavirus Therapies (ACT) inpatient trial aimed to evaluate anti-inflammatory therapy with colchicine and antithrombotic therapy with the combination of rivaroxaban and aspirin for prevention of disease progression in patients hospitalised with COVID-19. METHODS The ACT inpatient, open-label, 2 × 2 factorial, randomised, controlled trial was done at 62 clinical centres in 11 countries. Patients aged at least 18 years with symptomatic, laboratory confirmed COVID-19 who were within 72 h of hospitalisation or worsening clinically if already hospitalised were randomly assigned (1:1) to receive colchicine 1·2 mg followed by 0·6 mg 2 h later and then 0·6 mg twice daily for 28 days versus usual care; and in a second (1:1) randomisation, to the combination of rivaroxaban 2·5 mg twice daily plus aspirin 100 mg once daily for 28 days versus usual care. Investigators and patients were not masked to treatment allocation. The primary outcome, assessed at 45 days in the intention-to-treat population, for the colchicine randomisation was the composite of the need for high-flow oxygen, mechanical ventilation, or death; and for the rivaroxaban plus aspirin randomisation was the composite of major thrombosis (myocardial infarction, stroke, acute limb ischaemia, or pulmonary embolism), the need for high-flow oxygen, mechanical ventilation, or death. The trial is registered at www. CLINICALTRIALS gov, NCT04324463 and is ongoing. FINDINGS Between Oct 2, 2020, and Feb 10, 2022, at 62 sites in 11 countries, 2749 patients were randomly assigned to colchicine or control and the combination of rivaroxaban and aspirin or to the control. 2611 patients were included in the analysis of colchicine (n=1304) versus control (n=1307); 2119 patients were included in the analysis of rivaroxaban and aspirin (n=1063) versus control (n=1056). Follow-up was more than 98% complete. Overall, 368 (28·2%) of 1304 patients allocated to colchicine and 356 (27·2%) of 1307 allocated to control had a primary outcome (hazard ratio [HR] 1·04, 95% CI 0·90-1·21, p=0·58); and 281 (26·4%) of 1063 patients allocated to the combination of rivaroxaban and aspirin and 300 (28·4%) of 1056 allocated to control had a primary outcome (HR 0·92, 95% CI 0·78-1·09, p=0·32). Results were consistent in subgroups defined by vaccination status, disease severity at baseline, and timing of randomisation in relation to onset of symptoms. There was no increase in the number of patients who had at least one serious adverse event for colchicine versus control groups (87 [6·7%] of 1304 vs 90 [6·9%] of 1307) or with rivaroxaban and aspirin versus control groups (85 [8·0%] vs 91 [8·6%]). Among patients assigned to colchicine, 8 (0·61%) had adverse events that led to discontinuation of study drug, mostly gastrointestinal in nature. 17 (1·6%) patients assigned to the combination of rivaroxaban and aspirin had bleeding compared with seven (0·66%) of those allocated to control (p=0·042); the number of serious bleeding events was two (0·19%) versus six (0·57%), respectively (p=0·18). No patients assigned to rivaroxaban and aspirin had serious adverse events that led to discontinuation of study drug. INTERPRETATION Among patients hospitalised with COVID-19, neither colchicine nor the combination of rivaroxaban and aspirin prevent disease progression or death. FUNDING Canadian Institutes for Health Research, Bayer, Population Health Research Institute, Hamilton Health Sciences Research Institute, Thistledown Foundation. TRANSLATIONS For the Portuguese, Russian and Spanish translations of the abstract see Supplementary Materials section.
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Affiliation(s)
- John W Eikelboom
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Medicine, McMaster University, Hamilton, ON, Canada,Correspondence to: Prof John W Eikelboom, Population Health Research Institute, Hamilton, ON L8L 2X2, Canada
| | - Sanjit S Jolly
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Emilie P Belley-Cote
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Richard P Whitlock
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Sumathy Rangarajan
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada
| | - Lizhen Xu
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada
| | - Laura Heenan
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada
| | - Shrikant I Bangdiwala
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada
| | - Maria Luz Diaz
- Estudios Clínicos Latino América, Instituto Cardiovascular de Rosario, Rosario, Argentina
| | - Rafael Diaz
- Estudios Clínicos Latino América, Instituto Cardiovascular de Rosario, Rosario, Argentina
| | - Afzalhussein Yusufali
- Hatta Hospital, Dubai Medical College, Dubai Health Authority, Dubai, United Arab Emirates
| | | | - Wadea M Tarhuni
- Department of Medicine, University of Saskatchewan, Saskatoon, SK, Canada,Department of Medicine, Western University, Clinical Skills Building London, ON, Canada,Windsor Cardiac Centre, Windsor, ON, Canada
| | - Mohamed Hassany
- National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Alvaro Avezum
- International Research Center, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
| | - William Harper
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada
| | - Sean Wasserman
- Wellcome Centre for Infectious Diseases Research in Africa, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa,Division of Infectious Diseases and HIV Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Aysha Almas
- Section of Internal Medicine, Department of Medicine, Aga Khan University, Karachi, Pakistan
| | - Oxana Drapkina
- National Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia
| | - Camilo Felix
- Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Ecuador
| | - Renato D Lopes
- Division of Cardiology, Duke University Medical Center, Duke Clinical Research Institute, NC, USA
| | | | | | - Sonia S Anand
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Jackie Bosch
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | | | - Michael E Farkouh
- Peter Munk Cardiac Centre, University of Toronto, Toronto, ON, Canada
| | - Mark Loeb
- Departments of Pathology and Molecular Medicine and Health Evidence Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Salim Yusuf
- Population Health Research Institute, McMaster University and Hamilton Health Sciences Hamilton, Canada,Department of Surgery, McMaster University, Hamilton, ON, Canada
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Bohula EA, Berg DD, Lopes MS, Connors JM, Babar I, Barnett CF, Chaudhry SP, Chopra A, Ginete W, Ieong MH, Katz JN, Kim EY, Kuder JF, Mazza E, McLean D, Mosier JM, Moskowitz A, Murphy SA, O’Donoghue ML, Park JG, Prasad R, Ruff CT, Shahrour MN, Sinha SS, Wiviott SD, Van Diepen S, Zainea M, Baird-Zars V, Sabatine MS, Morrow DA. Anticoagulation and Antiplatelet Therapy for Prevention of Venous and Arterial Thrombotic Events in Critically Ill Patients With COVID-19: COVID-PACT. Circulation 2022; 146:1344-1356. [PMID: 36036760 PMCID: PMC9624238 DOI: 10.1161/circulationaha.122.061533] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The efficacy and safety of prophylactic full-dose anticoagulation and antiplatelet therapy in critically ill COVID-19 patients remain uncertain. METHODS COVID-PACT (Prevention of Arteriovenous Thrombotic Events in Critically-ill COVID-19 Patients Trial) was a multicenter, 2×2 factorial, open-label, randomized-controlled trial with blinded end point adjudication in intensive care unit-level patients with COVID-19. Patients were randomly assigned to a strategy of full-dose anticoagulation or standard-dose prophylactic anticoagulation. Absent an indication for antiplatelet therapy, patients were additionally randomly assigned to either clopidogrel or no antiplatelet therapy. The primary efficacy outcome was the hierarchical composite of death attributable to venous or arterial thrombosis, pulmonary embolism, clinically evident deep venous thrombosis, type 1 myocardial infarction, ischemic stroke, systemic embolic event or acute limb ischemia, or clinically silent deep venous thrombosis, through hospital discharge or 28 days. The primary efficacy analyses included an unmatched win ratio and time-to-first event analysis while patients were on treatment. The primary safety outcome was fatal or life-threatening bleeding. The secondary safety outcome was moderate to severe bleeding. Recruitment was stopped early in March 2022 (≈50% planned recruitment) because of waning intensive care unit-level COVID-19 rates. RESULTS At 34 centers in the United States, 390 patients were randomly assigned between anticoagulation strategies and 292 between antiplatelet strategies (382 and 290 in the on-treatment analyses). At randomization, 99% of patients required advanced respiratory therapy, including 15% requiring invasive mechanical ventilation; 40% required invasive ventilation during hospitalization. Comparing anticoagulation strategies, a greater proportion of wins occurred with full-dose anticoagulation (12.3%) versus standard-dose prophylactic anticoagulation (6.4%; win ratio, 1.95 [95% CI, 1.08-3.55]; P=0.028). Results were consistent in time-to-event analysis for the primary efficacy end point (full-dose versus standard-dose incidence 19/191 [9.9%] versus 29/191 [15.2%]; hazard ratio, 0.56 [95% CI, 0.32-0.99]; P=0.046). The primary safety end point occurred in 4 (2.1%) on full dose and in 1 (0.5%) on standard dose (P=0.19); the secondary safety end point occurred in 15 (7.9%) versus 1 (0.5%; P=0.002). There was no difference in all-cause mortality (hazard ratio, 0.91 [95% CI, 0.56-1.48]; P=0.70). There were no differences in the primary efficacy or safety end points with clopidogrel versus no antiplatelet therapy. CONCLUSIONS In critically ill patients with COVID-19, full-dose anticoagulation, but not clopidogrel, reduced thrombotic complications with an increase in bleeding, driven primarily by transfusions in hemodynamically stable patients, and no apparent excess in mortality. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT04409834.
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Affiliation(s)
- Erin A. Bohula
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - David D. Berg
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Mathew S. Lopes
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Jean M. Connors
- Hematology Division (J.M.C.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Ijlal Babar
- Singing River Health System, Ocean Springs, MS (I.B.)
| | | | | | - Amit Chopra
- Division of Pulmonary and Critical Care Medicine, Albany Medical Center, NY (A.C.)
| | - Wilson Ginete
- Essentia Health St. Mary’s Medical Center, Duluth, MN (W.G.)
| | - Michael H. Ieong
- The Pulmonary Center, Boston University School of Medicine, MA (M.H.I.)
| | - Jason N. Katz
- Division of Cardiovascular Medicine, Duke University School of Medicine, Durham, NC (J.N.K.)
| | - Edy Y. Kim
- Pulmonary and Critical Care Medicine Division (E.Y.K.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Julia F. Kuder
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | | | - Dalton McLean
- Moses H. Cone Memorial Hospital, Greensboro, NC (D.M.)
| | - Jarrod M. Mosier
- Department of Emergency Medicine and Division of Pulmonary, Allergy, Critical Care and Sleep, Department of Medicine, The University of Arizona College of Medicine, Tucson (J.M.M.)
| | - Ari Moskowitz
- Beth Israel Deaconess Medical Center, Boston, MA (A.M.)
| | - Sabina A. Murphy
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Michelle L. O’Donoghue
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Jeong-Gun Park
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | | | - Christian T. Ruff
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | | | - Shashank S. Sinha
- Inova Heart and Vascular Institute, Inova Fairfax Medical Center, Falls Church, VA (S.S.S.)
| | - Stephen D. Wiviott
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Sean Van Diepen
- Department of Critical Care and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Canada (S.V.D.)
| | | | - Vivian Baird-Zars
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Marc S. Sabatine
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - David A. Morrow
- TIMI Study Group, Cardiovascular Division (E.A.B., D.D.B., M.S.L., J.F.K., S.A.M., M.L.O., J.-G.P., C.T.R., S.D.W., V.B.-Z., M.S.S., D.A.M.), Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
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Jin S, Luo J, Wu X, Wang D, Zhang W, Li Z. A case of multiple thrombosis and septic shock in a critically ill patient with Omicron infection. J Infect Public Health 2022; 15:1321-1325. [PMID: 36283343 PMCID: PMC9578321 DOI: 10.1016/j.jiph.2022.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/30/2022] [Accepted: 10/16/2022] [Indexed: 11/29/2022] Open
Abstract
The emergence of the acute respiratory syndrome coronavirus 2 variant named Omicron has become a global concern. A 74-year-old unvaccinated patient was critically ill infected with the Omicron variant characterised by septic shock, large-scale cerebral embolism, deep vein thrombosis, and multiple organ dysfunction with respiratory failure, acute renal failure, coagulation dysfunction. The clinical symptoms were successfully controlled by active rescue treatment such as anti-infection, anti-shock, implantation of a vena cava filter as well as multi-organ function support. Although there are many complications in critically ill patients with Omicron variant infections, especially coagulation disorders and thrombosis, they can be resolved with a combination of Chinese and Western medicine positive rescue.
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Affiliation(s)
- Shanshan Jin
- Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China.
| | - Jian Luo
- Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China
| | - Xiayun Wu
- Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China
| | - Danqiong Wang
- Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China
| | - Weiwen Zhang
- Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China
| | - Zhangping Li
- Emergency Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China
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Myles PS, Yeung J, Beattie WS, Ryan EG, Heritier S, McArthur CJ. Platform trials for anaesthesia and perioperative medicine: a narrative review. Br J Anaesth 2022; 130:677-686. [PMID: 36456249 DOI: 10.1016/j.bja.2022.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/29/2022] Open
Abstract
Large randomised trials provide the most reliable evidence of effectiveness of new treatments in clinical practice. However, the time and resources required to complete such trials can be daunting. An overarching clinical trial platform focused on a single condition or type of surgery, aiming to compare several treatments, with an option to stop any or add in new treatment options, can provide greater efficiency. This has the potential to accelerate knowledge acquisition and identify effective, ineffective, or harmful treatments faster. The master protocol of the platform defines the study population(s) and standardised procedures. Ineffective or harmful treatments can be discarded or study drug dose modified during the life cycle of the trial. Other adaptive elements that can be modified include eligibility criteria, required sample size for any comparison(s), randomisation assignment ratio, and the addition of other promising treatment options. There are excellent opportunities for anaesthetists to establish platform trials in perioperative medicine. Platform trials are highly efficient, with the potential to provide quicker answers to important clinical questions that lead to improved patient care.
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Schulman S, Sholzberg M, Spyropoulos AC, Zarychanski R. "ISTH guidelines for antithrombotic treatment in COVID-19": Reply. J Thromb Haemost 2022; 20:2710-2711. [PMID: 36271457 PMCID: PMC9801169 DOI: 10.1111/jth.15854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 01/03/2023]
Affiliation(s)
- Sam Schulman
- Department of Medicine, Thrombosis and Atherosclerosis Research InstituteMcMaster UniversityHamiltonOntarioCanada
- Department of Obstetrics and GynecologyI.M. Sechenov First Moscow State Medical UniversityMoscowRussia
| | - Michelle Sholzberg
- Departments of Medicine, and Laboratory Medicine and Pathobiology, St. Michael’s Hospital, Li Ka Shing Knowledge InstituteUniversity of TorontoTorontoOntarioCanada
| | - Alex C. Spyropoulos
- Institute of Health System Science, Feinstein Institutes for Medical ResearchNorthwell HealthNew YorkNew YorkUSA
- Department of MedicineDonald and Barbara Zucker School of Medicine at Hofstra/NorthwellNew YorkNew YorkUSA
| | - Ryan Zarychanski
- Sections of Hematology/Oncology and Critical CareUniversity of ManitobaWinnipegManitobaCanada
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Practical Recommendations for Optimal Thromboprophylaxis in Patients with COVID-19: A Consensus Statement Based on Available Clinical Trials. J Clin Med 2022; 11:jcm11205997. [PMID: 36294316 PMCID: PMC9604499 DOI: 10.3390/jcm11205997] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/22/2022] [Accepted: 10/07/2022] [Indexed: 11/23/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) has been shown to be strongly associated with increased risk for venous thromboembolism events (VTE) mainly in the inpatient but also in the outpatient setting. Pharmacologic thromboprophylaxis has been shown to offer significant benefits in terms of reducing not only VTE events but also mortality, especially in acutely ill patients with COVID-19. Although the main source of evidence is derived from observational studies with several limitations, thromboprophylaxis is currently recommended for all hospitalized patients with acceptable bleeding risk by all national and international guidelines. Recently, high quality data from randomized controlled trials (RCTs) further support the role of thromboprophylaxis and provide insights into the optimal thromboprophylaxis strategy. The aim of this statement is to systematically review all the available evidence derived from RCTs regarding thromboprophylaxis strategies in patients with COVID-19 in different settings (either inpatient or outpatient) and provide evidence-based guidance to practical questions in everyday clinical practice. Clinical questions accompanied by practical recommendations are provided based on data derived from 20 RCTs that were identified and included in the present study. Overall, the main conclusions are: (i) thromboprophylaxis should be administered in all hospitalized patients with COVID-19, (ii) an optimal dose of inpatient thromboprophylaxis is dependent upon the severity of COVID-19, (iii) thromboprophylaxis should be administered on an individualized basis in post-discharge patients with COVID-19 with high thrombotic risk, and (iv) thromboprophylaxis should not be routinely administered in outpatients. Changes regarding the dominant SARS-CoV-2 variants, the wide immunization status (increasing rates of vaccination and reinfections), and the availability of antiviral therapies and monoclonal antibodies might affect the characteristics of patients with COVID-19; thus, future studies will inform us about the thrombotic risk and the optimal therapeutic strategies for these patients.
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Su W, Miao H, Guo Z, Chen Q, Huang T, Ding R. Associations between the use of aspirin or other antiplatelet drugs and all-cause mortality among patients with COVID-19: A meta-analysis. Front Pharmacol 2022; 13:989903. [PMID: 36278186 PMCID: PMC9581252 DOI: 10.3389/fphar.2022.989903] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/21/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction: Whether aspirin or other antiplatelet drugs can reduce mortality among patients with coronavirus disease (COVID-19) remains controversial.Methods: We identified randomized controlled trials, prospective cohort studies, and retrospective studies on associations between aspirin or other antiplatelet drug use and all-cause mortality among patients with COVID-19 in the PubMed database between March 2019 and September 2021. Newcastle–Ottawa Scale and Cochrane Risk of Bias Assessment Tool were used to assess the risk of bias. The I2 statistic was used to assess inconsistency among trial results. The summary risk ratio (RR) and odds ratio (OR) were obtained through the meta-analysis.Results: The 34 included studies comprised three randomized controlled trials, 27 retrospective studies, and 4 prospective cohort studies. The retrospective and prospective cohort studies showed low-to-moderate risks of bias per the Newcastle–Ottawa Scale score, while the randomized controlled trials showed low-to-high risks of bias per the Cochrane Risk of Bias Assessment Tool. The randomized controlled trials showed no significant effect of aspirin use on all-cause mortality in patients with COVID-19 {risk ratio (RR), 0.96 [95% confidence interval (CI) 0.90–1.03]}. In retrospective studies, aspirin reduced all-cause mortality in patients with COVID-19 by 20% [odds ratio (OR), 0.80 (95% CI 0.70–0.93)], while other antiplatelet drugs had no significant effects. In prospective cohort studies, aspirin decreased all-cause mortality in patients with COVID-19 by 15% [OR, 0.85 (95% CI 0.80–0.90)].Conclusion: The administration of aspirin may reduce all-cause mortality in patients with COVID-19.
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Affiliation(s)
- Wanting Su
- Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - He Miao
- Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Zhaotian Guo
- Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Qianhui Chen
- Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Tao Huang
- Department of Epidemiology & Biostatistics, School of Public Health, Peking University, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
- Center for Intelligent Public Health, Institute for Artificial Intelligence, Peking University, Beijing, China
- *Correspondence: Tao Huang, ; Renyu Ding,
| | - Renyu Ding
- Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
- *Correspondence: Tao Huang, ; Renyu Ding,
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Brem FL, Tayef TAA, Rasras H, Mahi OE, Ouafi NE, Zakaria B. Concomitant renal and splenic infarctions in a COVID-19-patient with a catastrophic thrombotic syndrome. Radiol Case Rep 2022; 17:4030-4033. [PMID: 35999857 PMCID: PMC9389916 DOI: 10.1016/j.radcr.2022.06.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/12/2022] [Accepted: 06/21/2022] [Indexed: 11/29/2022] Open
Abstract
Since the outbreak of the COVID-19 pandemic, thrombotic events have been accurately described in patients infected by the SARS-CoV-2, especially venous thromboembolism. However, the mystery of arterial thrombosis is still unclear. Here, we report the case of a 59-year-old man with diabetes mellitus, admitted for COVID-19-pneumonia complicated by pulmonary embolism, a thrombus in the aortic isthmus, the descending thoracic aorta associated with splenic and left renal infarctions, and an acute right limb ischemia. The etiological assessment of this catastrophic thrombotic syndrome showed no evidence for preexisting inherited or acquired thrombophilia. Our case emphasizes the hypercoagulability state in COVID-19-patient leading to both arterial and venous thromboembolisms and the need to establish adequate strategies for the diagnosis and management of thrombo-embolisms to prevent these potentially fatal complications.
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Affiliation(s)
- Falmata Laouan Brem
- Department of Cardiology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy of Oujda, Mohammed First University, Oujda, Morocco
- Corresponding author.
| | - Taha Abu Al Tayef
- Department of Vascular surgery, Mohamed VI University Hospital Center, Mohamed I University, Oujda, Morocco
| | - Hammam Rasras
- Department of Cardiology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy of Oujda, Mohammed First University, Oujda, Morocco
| | - Omar El Mahi
- Department of Vascular surgery, Mohamed VI University Hospital Center, Mohamed I University, Oujda, Morocco
| | - Noha El Ouafi
- Department of Cardiology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy of Oujda, Mohammed First University, Oujda, Morocco
- Epidemiological Laboratory of Clinical Research and Public Health, Faculty of Medicine and Pharmacy of Oujda, Mohammed First University, Oujda, Morocco
| | - Bazid Zakaria
- Department of Cardiology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy of Oujda, Mohammed First University, Oujda, Morocco
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Schulman S, Sholzberg M, Spyropoulos AC, Zarychanski R, Resnick HE, Bradbury CA, Broxmeyer L, Connors JM, Falanga A, Iba T, Kaatz S, Levy JH, Middeldorp S, Minichiello T, Ramacciotti E, Samama CM, Thachil J. ISTH guidelines for antithrombotic treatment in COVID-19. J Thromb Haemost 2022; 20:2214-2225. [PMID: 35906716 PMCID: PMC9349907 DOI: 10.1111/jth.15808] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/17/2022] [Accepted: 07/03/2022] [Indexed: 11/29/2022]
Abstract
Antithrombotic agents reduce risk of thromboembolism in severely ill patients. Patients with coronavirus disease 2019 (COVID-19) may realize additional benefits from heparins. Optimal dosing and timing of these treatments and benefits of other antithrombotic agents remain unclear. In October 2021, ISTH assembled an international panel of content experts, patient representatives, and a methodologist to develop recommendations on anticoagulants and antiplatelet agents for patients with COVID-19 in different clinical settings. We used the American College of Cardiology Foundation/American Heart Association methodology to assess level of evidence (LOE) and class of recommendation (COR). Only recommendations with LOE A or B were included. Panelists agreed on 12 recommendations: three for non-hospitalized, five for non-critically ill hospitalized, three for critically ill hospitalized, and one for post-discharge patients. Two recommendations were based on high-quality evidence, the remainder on moderate-quality evidence. Among non-critically ill patients hospitalized for COVID-19, the panel gave a strong recommendation (a) for use of prophylactic dose of low molecular weight heparin or unfractionated heparin (LMWH/UFH) (COR 1); (b) for select patients in this group, use of therapeutic dose LMWH/UFH in preference to prophylactic dose (COR 1); but (c) against the addition of an antiplatelet agent (COR 3). Weak recommendations favored (a) sulodexide in non-hospitalized patients, (b) adding an antiplatelet agent to prophylactic LMWH/UFH in select critically ill, and (c) prophylactic rivaroxaban for select patients after discharge (all COR 2b). Recommendations in this guideline are based on high-/moderate-quality evidence available through March 2022. Focused updates will incorporate future evidence supporting changes to these recommendations.
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Affiliation(s)
- Sam Schulman
- Department of Medicine, Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada
- Department of Obstetrics and Gynecology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Michelle Sholzberg
- Departments of Medicine, and Laboratory Medicine and Pathobiology, St Michael's Hospital, Li Ka Shing Knowledge Institute, University of Toronto, Toronto, Ontario, Canada
| | - Alex C Spyropoulos
- Institute of Health System Science, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York, USA
- Department of Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Ryan Zarychanski
- Sections of Hematology/Oncology and Critical Care, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | | | | - Jean Marie Connors
- Division of Hematology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Anna Falanga
- Department of Transfusion Medicine and Hematology, Hospital Papa Giovanni XXIII, Bergamo, Italy
- University of Milan Bicocca, Monza, Italy
| | - Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University, Tokyo, Japan
| | - Scott Kaatz
- Division of Hospital Medicine, Henry Ford Hospital, Detroit, Michigan, USA
| | - Jerrold H Levy
- Departments of Anesthesiology, Critical Care, and Surgery (Cardiothoracic), Duke University School of Medicine, Durham, North Carolina, USA
| | - Saskia Middeldorp
- Department of Internal Medicine and Radboud Institute of Health Sciences, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Tracy Minichiello
- Division of Hematology, San Francisco VA Medical Center, University of California, San Francisco, San Francisco, California, USA
| | - Eduardo Ramacciotti
- Science Valley Research Institute, São Paulo, Brazil
- Hospital e Maternidade Christóvão da Gama, Grupo Leforte, Santo André, São Paulo, Brazil
| | - Charles Marc Samama
- Department of Anaesthesia, Centre-Université de Paris-Cochin Hospital, Intensive Care and Perioperative Medicine GHU AP-HP, Paris, France
| | - Jecko Thachil
- Department of Haematology, Manchester University Hospitals, Manchester, UK
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Conway EM, Mackman N, Warren RQ, Wolberg AS, Mosnier LO, Campbell RA, Gralinski LE, Rondina MT, van de Veerdonk FL, Hoffmeister KM, Griffin JH, Nugent D, Moon K, Morrissey JH. Understanding COVID-19-associated coagulopathy. Nat Rev Immunol 2022; 22:639-649. [PMID: 35931818 PMCID: PMC9362465 DOI: 10.1038/s41577-022-00762-9] [Citation(s) in RCA: 136] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2022] [Indexed: 02/06/2023]
Abstract
COVID-19-associated coagulopathy (CAC) is a life-threatening complication of SARS-CoV-2 infection. However, the underlying cellular and molecular mechanisms driving this condition are unclear. Evidence supports the concept that CAC involves complex interactions between the innate immune response, the coagulation and fibrinolytic pathways, and the vascular endothelium, resulting in a procoagulant condition. Understanding of the pathogenesis of this condition at the genomic, molecular and cellular levels is needed in order to mitigate thrombosis formation in at-risk patients. In this Perspective, we categorize our current understanding of CAC into three main pathological mechanisms: first, vascular endothelial cell dysfunction; second, a hyper-inflammatory immune response; and last, hypercoagulability. Furthermore, we pose key questions and identify research gaps that need to be addressed to better understand CAC, facilitate improved diagnostics and aid in therapeutic development. Finally, we consider the suitability of different animal models to study CAC.
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Affiliation(s)
- Edward M Conway
- Centre for Blood Research, Life Sciences Institute, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nigel Mackman
- Department of Medicine, UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ronald Q Warren
- Molecular Cellular and Systems Blood Science Branch, Division of Blood Diseases and Resources, National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | - Alisa S Wolberg
- Department of Pathology and Laboratory Medicine, UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Laurent O Mosnier
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Robert A Campbell
- Department of Internal Medicine, Division of General Medicine, University of Utah, Salt Lake City, UT, USA
| | - Lisa E Gralinski
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matthew T Rondina
- Department of Internal Medicine, Division of General Medicine, University of Utah, Salt Lake City, UT, USA
| | - Frank L van de Veerdonk
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Karin M Hoffmeister
- Versiti Translational Glycomics Center, Blood Research Institute and Medical College of Wisconsin, Milwaukee, WI, USA
| | - John H Griffin
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Diane Nugent
- Department of Paediatrics, School of Medicine, University of California at Irvine, Irvine, CA, USA
| | - Kyung Moon
- Molecular Cellular and Systems Blood Science Branch, Division of Blood Diseases and Resources, National Heart, Lung, and Blood Institute, Bethesda, MD, USA.
- Bacteriology and Mycology Branch, Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA.
| | - James H Morrissey
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI, USA.
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
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Spyropoulos AC, Connors JM, Douketis JD, Goldin M, Hunt BJ, Kotila TR, Lopes RD, Schulman S. Good practice statements for antithrombotic therapy in the management of COVID-19: Guidance from the SSC of the ISTH. J Thromb Haemost 2022; 20:2226-2236. [PMID: 35906715 PMCID: PMC9349985 DOI: 10.1111/jth.15809] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/14/2022] [Accepted: 07/05/2022] [Indexed: 12/30/2022]
Abstract
Despite the emergence of high quality randomized trial data with the use of antithrombotic agents to reduce the risk of thromboembolism, end-organ failure, and possibly mortality in patients with coronavirus disease 2019 (COVID-19), questions still remain as to optimal patient selection for these strategies, the use of antithrombotics in outpatient settings and in-hospital settings (including critical care units), thromboprophylaxis in special patient populations, and the management of acute thrombosis in hospitalized COVID-19 patients. In October 2021, the International Society on Thrombosis and Haemostasis (ISTH) formed a multidisciplinary and international panel of content experts, two patient representatives, and a methodologist to develop recommendations on treatment with anticoagulants and antiplatelet agents for COVID-19 patients. The ISTH Guideline panel discussed additional topics to be well suited to a non-Grading of Recommendations Assessment, Development, and Evaluation (GRADE) for Good Practice Statements (GPS) to support good clinical care in the antithrombotic management of COVID-19 patients in various clinical settings. The GPS panel agreed on 17 GPS: 3 in the outpatient (pre-hospital) setting, 12 in the hospital setting both in non-critical care (ward) as well as intensive care unit settings, and 2 in the immediate post-hospital discharge setting based on limited evidence or expert opinion that supports net clinical benefit in enacting the statements provided. The antithrombotic therapies discussed in these GPS should be available in low- and middle-income countries.
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Affiliation(s)
- Alex C Spyropoulos
- Institute of Health Systems Science-Feinstein Institutes for Medical Research, Manhasset, New York, USA
- The Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hemptead, New York, USA
- Department of Medicine, Anticoagulation and Clinical Thrombosis Services, Northwell Health at Lenox Hill Hospital, New York, New York, USA
| | - Jean M Connors
- Hematology Division Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - James D Douketis
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Mark Goldin
- Institute of Health Systems Science-Feinstein Institutes for Medical Research, Manhasset, New York, USA
- The Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hemptead, New York, USA
| | - Beverley J Hunt
- Thrombosis & Haemophilia Centre, Guy's & St Thomas' NHS Foundation Trust, London, UK
| | - Taiwo R Kotila
- Department of Haematology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Renato D Lopes
- Duke University Medical Center, Duke Clinical Research Institute, Department of Medicine, Division of Cardiology, Durham, North Carolina, USA
- Brazilian Clinical Research Institute, Sao Paulo, Brazil
| | - Sam Schulman
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Obstetrics and Gynecology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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Xiang M, Wu X, Jing H, Liu L, Wang C, Wang Y, Novakovic VA, Shi J. The impact of platelets on pulmonary microcirculation throughout COVID-19 and its persistent activating factors. Front Immunol 2022; 13:955654. [PMID: 36248790 PMCID: PMC9559186 DOI: 10.3389/fimmu.2022.955654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/15/2022] [Indexed: 12/05/2022] Open
Abstract
Patients with COVID-19 often have hypoxemia, impaired lung function, and abnormal imaging manifestations in acute and convalescent stages. Alveolar inflammation, pulmonary vasculitis, and thromboembolism synergistically damage the blood-air barrier, resulting in increased pulmonary permeability and gas exchange disorders. The incidence of low platelet counts correlates with disease severity. Platelets are also involved in the impairment of pulmonary microcirculation leading to abnormal lung function at different phases of COVID-19. Activated platelets lose the ability to protect the integrity of blood vessel walls, increasing the permeability of pulmonary microvasculature. High levels of platelet activation markers are observed in both mild and severe cases, short and long term. Therefore, the risk of thrombotic events may always be present. Vascular endothelial injury, immune cells, inflammatory mediators, and hypoxia participate in the high reactivity and aggregation of platelets in various ways. Microvesicles, phosphatidylserine (PS), platelets, and coagulation factors are closely related. The release of various cell-derived microvesicles can be detected in COVID-19 patients. In addition to providing a phospholipid surface for the synthesis of intrinsic factor Xase complex and prothrombinase complex, exposed PS also promotes the decryption of tissue factor (TF) which then promotes coagulant activity by complexing with factor VIIa to activate factor X. The treatment of COVID-19 hypercoagulability and thrombosis still focuses on early intervention. Antiplatelet therapy plays a role in relieving the disease, inhibiting the formation of the hypercoagulable state, reducing thrombotic events and mortality, and improving sequelae. PS can be another potential target for the inhibition of hypercoagulable states.
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Affiliation(s)
- Mengqi Xiang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Xiaoming Wu
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Haijiao Jing
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Langjiao Liu
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Chunxu Wang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Yufeng Wang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Valerie A. Novakovic
- Department of Research, Veterans Affairs (VA) Boston Healthcare System, Harvard Medical School, Boston, MA, United States
| | - Jialan Shi
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
- Department of Research, Veterans Affairs (VA) Boston Healthcare System, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- *Correspondence: Jialan Shi, ;
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Zong X, Wang X, Liu Y, Li Z, Wang W, Wei D, Chen Z. Antiplatelet therapy for patients with COVID-19: Systematic review and meta-analysis of observational studies and randomized controlled trials. Front Med (Lausanne) 2022; 9:965790. [PMID: 36160149 PMCID: PMC9490267 DOI: 10.3389/fmed.2022.965790] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Background Hyperinflammation and coagulopathy are hallmarks of COVID-19 and synergistically contribute to illness progression. Antiplatelet agents have been proposed as candidate drugs for COVID-19 treatment on the basis of their antithrombotic and anti-inflammatory properties. A systematic review and meta-analysis that included early observational studies and recent randomized controlled trials (RCTs) was performed to summarize and compare evidence on this issue. Methods PubMed, Embase, and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched to identify studies published up to Nov 7, 2021, and the results of registered clinical trials were followed up to Mar 30, 2022. We included RCTs and observational studies assessing the effect of antiplatelet therapy in adult patients with COVID-19. Data on baseline patient characteristics, interventions, controls, and outcomes were extracted by two independent reviewers. The primary outcome was mortality. Data were pooled using a random-effects model. Results Twenty-seven studies were included, of which 23 observational studies were pooled in a meta-analysis, and the remaining four RCTs (ACTIV-4B, RECOVERY, ACTIV-4a, and REMAP-CAP) were narratively synthesized. Based on 23 observational studies of 87,824 COVID-19 patients, antiplatelet treatment favors a lower risk of mortality [odds ratio (OR) 0.72, 95% confidence interval (CI) 0.61–0.85; I2 = 87.0%, P < 0.01]. The narrative synthesis of RCTs showed conflicting evidence, which did not support adding antiplatelet therapy to the standard care, regardless of the baseline illness severity and concomitant anticoagulation intensity. Conclusion While the rationale for using antiplatelet treatment in COVID-19 patients is compelling and was supported by the combined result of early observational studies, evidence from RCTs did not confirm this approach. Several factors that could explain this inconsistency were highlighted alongside perspectives on future research directions.
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Affiliation(s)
- Xiaolong Zong
- Department of Clinical Laboratory, The Second Hospital of Tianjin Medical University, Tianjin, China
- Institute of Infectious Diseases, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiao Wang
- Department of Emergency Medicine, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yaru Liu
- Department of Emergency Medicine, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Zhenyu Li
- Institute of Infectious Diseases, The Second Hospital of Tianjin Medical University, Tianjin, China
- Department of Emergency Medicine, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Weiding Wang
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Dianjun Wei
- Department of Clinical Laboratory, Yanda Hospital, Langfang, China
- *Correspondence: Dianjun Wei
| | - Zhuqing Chen
- Medical Security Center, The No. 983 Hospital of the Joint Service Support Force, Tianjin, China
- Zhuqing Chen
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70
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Abstract
The activating interplay of thrombosis and inflammation (thromboinflammation) has been established as a major underlying pathway, driving not only cardiovascular disease but also autoimmune disease and most recently, COVID-19. Throughout the years, innate immune cells have emerged as important modulators of this process. As the most abundant white blood cell in humans, neutrophils are well-positioned to propel thromboinflammation. This includes their ability to trigger an organized cell death pathway with the release of decondensed chromatin structures called neutrophil extracellular traps. Decorated with histones and cytoplasmic and granular proteins, neutrophil extracellular traps exert cytotoxic, immunogenic, and prothrombotic effects accelerating disease progression. Distinct steps leading to extracellular DNA release (NETosis) require the activities of PAD4 (protein arginine deiminase 4) catalyzing citrullination of histones and are supported by neutrophil inflammasome. By linking the immunologic function of neutrophils with the procoagulant and proinflammatory activities of monocytes and platelets, PAD4 activity holds important implications for understanding the processes that fuel thromboinflammation. We will also discuss mechanisms whereby vascular occlusion in thromboinflammation depends on the interaction of neutrophil extracellular traps with ultra-large VWF (von Willebrand Factor) and speculate on the importance of PAD4 in neutrophil inflammasome assembly and neutrophil extracellular traps in thromboinflammatory diseases including atherosclerosis and COVID-19.
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Affiliation(s)
- Denisa D Wagner
- Program in Cellular and Molecular Medicine, Division of Hematology and Oncology, Boston Children's Hospital/Harvard Medical School, MA (D.D.W., L.A.H.)
| | - Lukas A Heger
- Program in Cellular and Molecular Medicine, Division of Hematology and Oncology, Boston Children's Hospital/Harvard Medical School, MA (D.D.W., L.A.H.)
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71
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Battaglini D, Cruz F, Robba C, Pelosi P, Rocco PRM. Failed clinical trials on COVID-19 acute respiratory distress syndrome in hospitalized patients: common oversights and streamlining the development of clinically effective therapeutics. Expert Opin Investig Drugs 2022; 31:995-1015. [PMID: 36047644 DOI: 10.1080/13543784.2022.2120801] [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: 01/18/2023]
Abstract
INTRODUCTION The coronavirus disease 2019 (COVID-19) pandemic has put a strain on global healthcare systems. Despite admirable efforts to develop rapidly new pharmacotherapies, supportive treatments remain the standard of care. Multiple clinical trials have failed due to design issues, biased patient enrollment, small sample sizes, inadequate control groups, and lack of long-term outcomes monitoring. AREAS COVERED This narrative review depicts the current situation around failed and success COVID-19 clinical trials and recommendations in hospitalized patients with COVID-19, oversights and streamlining of clinically effective therapeutics. PubMed, EBSCO, Cochrane Library, and WHO and NIH guidelines were searched for relevant literature up to 5 August 2022. EXPERT OPINION The WHO, NIH, and IDSA have issued recommendations to better clarify which drugs should be used during the different phases of the disease. Given the biases and high heterogeneity of published studies, interpretation of the current literature is difficult. Future clinical trials should be designed to standardize clinical approaches, with appropriate organization, patient selection, addition of control groups, and careful identification of disease phase to reduce heterogeneity and bias and should rely on the integration of scientific societies to promote a consensus on interpretation of the data and recommendations for optimal COVID-19 therapies.
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Affiliation(s)
- Denise Battaglini
- Dipartimento di Anestesia e Rianimazione, Policlinico San Martino, IRCCS per l'Oncologia e le Neuroscienze, Genoa, Italy
| | - Fernanda Cruz
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Chiara Robba
- Policlinico San Martino, IRCCS per l'Oncologia e Neuroscienze, Dipartimento di Scienze Chirurgiche e Diagnostiche Integrate, Università degli Studi di Genova, Genoa, Italy
| | - Paolo Pelosi
- Dipartimento di Anestesia e Rianimazione, Policlinico San Martino, IRCCS per l'Oncologia e le Neuroscienze, Genoa, Italy.,Policlinico San Martino, IRCCS per l'Oncologia e Neuroscienze, Dipartimento di Scienze Chirurgiche e Diagnostiche Integrate, Università degli Studi di Genova, Genoa, Italy
| | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,COVID-19 Virus Network from Ministry of Science, Technology, and Innovation, Brazilian Council for Scientific and Technological Development, and Foundation Carlos Chagas Filho Research Support of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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72
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Zhang H, Lao Q, Zhang J, Zhu J. Coagulopathy in COVID-19 and anticoagulation clinical trials. Best Pract Res Clin Haematol 2022; 35:101377. [PMID: 36494146 PMCID: PMC9395291 DOI: 10.1016/j.beha.2022.101377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/02/2022] [Accepted: 08/16/2022] [Indexed: 12/15/2022]
Abstract
Severe acute respiratory disease coronavirus 2 (SARS-COV-2) first emerged in Wuhan, China, in December 2019 and has caused a global pandemic of a scale unprecedented in the modern era. People infected with SARS-CoV-2 can be asymptomatic, moderate symptomatic or develop severe COVID-19. Other than the typical acute respiratory distress syndrome (ARDS), patients with moderate or severe COVID-19 also develop a distinctive systemic coagulopathy, known as COVID-19-associated coagulopathy (CAC), which is different from sepsis-related forms of disseminated intravascular coagulation (DIC). Endotheliopathy or endotheliitis are other unique features of CAC. The endothelial cell perturbation can further increase the risk of thrombotic events in COVID-19 patients. In this review, we will summarize the current knowledge on COVID-19 coagulopathy and the possible mechanisms for the condition. We also discuss the results of clinical trials testing methods for mitigating thrombosis events in COVID-19 patients.
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Affiliation(s)
- Heng Zhang
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI, USA
| | - Qifang Lao
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI, USA; Department of Critical Care Medicine, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Jue Zhang
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI, USA
| | - Jieqing Zhu
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI, USA; Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA.
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73
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Duo H, Li Y, Sun Y, Wei L, Wang Z, Fang F, Zhong Y, Huang J, Luo L, Peng Z, Pan H. Effect of therapeutic versus prophylactic anticoagulation therapy on clinical outcomes in COVID-19 patients: a systematic review with an updated meta-analysis. Thromb J 2022; 20:47. [PMID: 35999599 PMCID: PMC9395810 DOI: 10.1186/s12959-022-00408-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/14/2022] [Indexed: 12/15/2022] Open
Abstract
Background Previous studies demonstrate a reduced risk of thrombosis and mortality with anticoagulant treatment in patients with COVID-19 than in those without anticoagulation treatment. However, an open question regarding the efficacy and safety of therapeutic anticoagulation (T-AC) versus a lower dose, prophylaxis anticoagulation (P-AC) in COVID-19 patients is still controversial. Methods We systematically reviewed currently available randomized clinical trials (RCTs) and observational studies (OBs) from January 8, 2019, to January 8, 2022, and compared prophylactic and therapeutic anticoagulant treatment in COVID-19 patients. The primary outcomes were risk of mortality, major bleeding, and the secondary outcomes included venous and arterial thromboembolism. Subgroup analysis was also performed between critically ill and non-critically ill patients with COVID-19 and between patients with higher and lower levels of D-dimer. Sensitivity analysis was performed to decrease the bias and the impact of population heterogeneity. Results We identified 11 RCTs and 17 OBs fulfilling our inclusion criteria. In the RCTs analyses, there was no statistically significant difference in the relative risk of mortality between COVID-19 patients with T-AC treatment and those treated with P-AC (RR 0.95, 95% CI, 0.78–1.15, P = 0.60). Similar results were also found in the OBs analyses (RR 1.21, 95% CI, 0.98–1.49, P = 0.08). The pooling meta-analysis using a random-effects model combined with effect sizes showed that in the RCTs and OBs analyses, patients with COVID-19 who received T-AC treatment had a significantly higher relative risk of the major bleeding event than those with P-AC treatment in COVID-19 patients (RCTs: RR 1.76, 95% CI, 1.19–2.62, P = 0.005; OBs: RR 2.39, 95% CI, 1.56–3.68, P < 0.0001). Compared with P-AC treatment in COVID-19 patients, patients with T-AC treatment significantly reduced the incidence of venous thromboembolism (RR 0.51, 95% CI, 0.39–0.67, P<0.00001), but it is not associated with arterial thrombosis events (RR 0.97, 95% CI, 0.66–1.42, P = 0.87). The subgroup analysis of OBs shows that the mortality risk significantly reduces in critically ill COVID-19 patients treated with T-AC compared with those with P-AC treatment (RR 0.58, 95% CI, 0.39–0.86, P = 0.007), while the mortality risk significantly increases in non-critically ill COVID-19 patients treated with T-AC (RR 1.56, 95% CI, 1.34–1.80, P < 0.00001). In addition, T-AC treatment does not reduce the risk of mortality in COVID-19 patients with high d-dimer levels in RCTs. Finally, the overall sensitivity analysis after excluding two RCTs studies remains consistent with the previous results. Conclusions In our integrated analysis of included RCTs and OBs, there is no significant difference between the mortality of T-AC and P-AC treatment in unselected patients with COVID-19. T-AC treatment in COVID-19 patients significantly reduced the incidence of venous thromboembolism but showed a higher risk of bleeding than those with P-AC treatment. In addition, P-AC treatment was superior to T-AC treatment in non-critically ill COVID-19 patients, the evidence supporting the necessity for T-AC treatment in critically ill COVID-19 patients came only from OBs. Trial registration Protocol registration: The protocol was registered at PROSPERO (CRD42021293294). Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12959-022-00408-9.
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Affiliation(s)
- Hong Duo
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,The Second Clinical College of Wuhan University, Wuhan, 430071, China
| | - Yahui Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,The Second Clinical College of Wuhan University, Wuhan, 430071, China
| | - Yujie Sun
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,The Second Clinical College of Wuhan University, Wuhan, 430071, China
| | - Liang Wei
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,The Second Clinical College of Wuhan University, Wuhan, 430071, China
| | - Ziqing Wang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,The Second Clinical College of Wuhan University, Wuhan, 430071, China
| | - Fang Fang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yuxin Zhong
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China.,Clinical Research Center for Critical Care Medicine of Hubei Province, Wuhan, 430071, China
| | - Jiao Huang
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Linjie Luo
- Department of Experimental Radiation Oncology & Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA.
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China. .,Clinical Research Center for Critical Care Medicine of Hubei Province, Wuhan, 430071, China.
| | - Huaqin Pan
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, 169 Eastlake Rd., Wuchang, Wuhan, 430071, Hubei province, China. .,Clinical Research Center for Critical Care Medicine of Hubei Province, Wuhan, 430071, China.
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74
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Liu L, Jing H, Wu X, Xiang M, Novakovic VA, Wang S, Shi J. The cross-talk of lung and heart complications in COVID-19: Endothelial cells dysfunction, thrombosis, and treatment. Front Cardiovasc Med 2022; 9:957006. [PMID: 35990983 PMCID: PMC9390946 DOI: 10.3389/fcvm.2022.957006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/11/2022] [Indexed: 01/08/2023] Open
Abstract
The pandemic respiratory illness SARS-CoV-2 has increasingly been shown to be a systemic disease that can also have profound impacts on the cardiovascular system. Although associated cardiopulmonary sequelae can persist after infection, the link between viral infection and these complications remains unclear. There is now a recognized link between endothelial cell dysfunction and thrombosis. Its role in stimulating platelet activation and thrombotic inflammation has been widely reported. However, the procoagulant role of microparticles (MPs) in COVID-19 seems to have been neglected. As membrane vesicles released after cell injury or apoptosis, MPs exert procoagulant activity mainly by exposing phosphatidylserine (PS) on their lipid membranes. It can provide a catalytic surface for the assembly of the prothrombinase complex. Therefore, inhibiting PS externalization is a potential therapeutic strategy. In this paper, we describe the pathophysiological mechanism by which SARS-CoV-2 induces lung and heart complications through injury of endothelial cells, emphasizing the procoagulant effect of MPs and PS, and demonstrate the importance of early antithrombotic therapy. In addition, we will detail the mechanisms underlying hypoxia, another serious pulmonary complication related to SARS-CoV-2-induced endothelial cells injury and discuss the use of oxygen therapy. In the case of SARS-CoV-2 infection, virus invades endothelial cells through direct infection, hypoxia, imbalance of the RAAS, and cytokine storm. These factors cause endothelial cells to release MPs, form MPs storm, and eventually lead to thrombosis. This, in turn, accelerates hypoxia and cytokine storms, forming a positive feedback loop. Given the important role of thrombosis in the disease, early antithrombotic therapy is an important tool for COVID-19. It may maintain normal blood circulation, accelerating the clearance of viruses, waning the formation of MPs storm, and avoiding disease progression.
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Affiliation(s)
- Langjiao Liu
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
| | - Haijiao Jing
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
| | - Xiaoming Wu
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
| | - Mengqi Xiang
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
| | - Valerie A. Novakovic
- Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, MA, United States
| | - Shuye Wang
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
- Shuye Wang
| | - Jialan Shi
- Department of Hematology, First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
- Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- *Correspondence: Jialan Shi ;
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75
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Falcinelli E, Petito E, Gresele P. The role of platelets, neutrophils and endothelium in COVID-19 infection. Expert Rev Hematol 2022; 15:727-745. [PMID: 35930267 DOI: 10.1080/17474086.2022.2110061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION COVID-19 is associated to an increased risk of thrombosis, as a result of a complex process that involves the activation of vascular and circulating cells, the release of soluble inflammatory and thrombotic mediators and blood clotting activation. AREAS COVERED This article reviews the pathophysiological role of platelets, neutrophils and the endothelium, and of their interactions, in the thrombotic complications of COVID-19 patients, and the current and future therapeutic approaches targeting these cell types. EXPERT OPINION Virus-induced platelet, neutrophil and endothelial cell changes are crucial triggers of the thrombotic complications and of the adverse evolution of COVID-19. Both the direct interaction with the virus and the associated cytokine storm concur to trigger cell activation in a classical thromboinflammatory vicious circle. Although heparin has proven to be an effective prophylactic and therapeutic weapon for the prevention and treatment of COVID-19-associated thrombosis, it acts downstream of the cascade of events triggered by SARS-CoV-2. The identification of specific molecular targets interrupting the thromboinflammatory cascade upstream, and more specifically acting either on the interaction of SARS-CoV-2 with blood and vascular cells or on the specific signalling mechanisms associated with their COVID-19-associated activation, might theoretically offer greater protection with potentially lesser side effects.
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Affiliation(s)
- E Falcinelli
- Section of Internal and Cardiovascular Medicine, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - E Petito
- Section of Internal and Cardiovascular Medicine, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - P Gresele
- Section of Internal and Cardiovascular Medicine, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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76
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Gawelek KL, Padera R, Connors J, Pinkus GS, Podznyakova O, Battinelli EM. Cardiac megakaryocytes in SARS-CoV-2 positive autopsies. Histopathology 2022; 81:600-624. [PMID: 35925828 PMCID: PMC9538948 DOI: 10.1111/his.14734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 01/08/2023]
Abstract
Thromboembolic phenomena are an important complication of infection by severe acute respiratory coronavirus 2 (SARS‐CoV‐2). Increasing focus on the management of the thrombotic complications of Coronavirus Disease 2019 (COVID‐19) has led to further investigation into the role of platelets, and their precursor cell, the megakaryocyte, during the disease course. Previously published postmortem evaluations of patients who succumbed to COVID‐19 have reported the presence of megakaryocytes in the cardiac microvasculature. Our series evaluated a cohort of autopsies performed on SARS‐CoV‐2‐positive patients in 2020 (n = 36) and prepandemic autopsies performed in early 2020 (n = 12) and selected to represent comorbidities common in cases of severe COVID‐19, in addition to infectious and noninfectious pulmonary disease and thromboembolic phenomena. Cases were assessed for the presence of cardiac megakaryocytes and correlated with the presence of pulmonary emboli and laboratory platelet parameters and inflammatory markers. Cardiac megakaryocytes were detected in 64% (23/36) of COVID‐19 autopsies, and 40% (5/12) prepandemic autopsies, with averages of 1.77 and 0.84 megakaryocytes per cm2, respectively. Within the COVID‐19 cohort, autopsies with detected megakaryocytes had significantly higher platelet counts compared with cases throughout; other platelet parameters were not statistically significant between groups. Although studies have supported a role of platelets and megakaryocytes in the response to viral infections, including SARS‐CoV‐2, our findings suggest cardiac megakaryocytes may be representative of a nonspecific inflammatory response and are frequent in, but not exclusive to, COVID‐19 autopsies.
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Affiliation(s)
- Kara L Gawelek
- Department of Pathology, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Robert Padera
- Department of Pathology, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Jean Connors
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Geraldine S Pinkus
- Department of Pathology, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Olga Podznyakova
- Department of Pathology, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
| | - Elisabeth M Battinelli
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts, USA
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77
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Toner P, McAuley DF, O'Kane CM. Response. Chest 2022; 161:e392-e393. [PMID: 35680323 DOI: 10.1016/j.chest.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 12/01/2022] Open
Affiliation(s)
- Philip Toner
- The Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Belfast, Ireland; Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast, Ireland.
| | - Daniel F McAuley
- The Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Belfast, Ireland; Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast, Ireland
| | - Cecilia M O'Kane
- The Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Belfast, Ireland
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78
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Ng SM, Pan J, Mouyis K, Kondapally Seshasai SR, Kapil V, Rice KM, Gupta AK. Quantifying the Excess Risk of Adverse COVID-19 Outcomes in Unvaccinated Individuals With Diabetes Mellitus, Hypertension, Ischaemic Heart Disease or Myocardial Injury: A Meta-Analysis. Front Cardiovasc Med 2022; 9:871151. [PMID: 35557537 PMCID: PMC9090337 DOI: 10.3389/fcvm.2022.871151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/01/2022] [Indexed: 12/03/2022] Open
Abstract
Background More than 80% of individuals in low and middle-income countries (LMICs) are unvaccinated against coronavirus disease 2019 (COVID-19). In contrast, the greatest burden of cardiovascular disease is seen in LMIC populations. Hypertension (HTN), diabetes mellitus (DM), ischaemic heart disease (IHD) and myocardial injury have been variably associated with adverse COVID-19 outcomes. A systematic comparison of their impact on specific COVID-19 outcomes is lacking. We quantified the impact of DM, HTN, IHD and myocardial injury on six adverse COVID-19 outcomes: death, acute respiratory distress syndrome (ARDS), invasive mechanical ventilation (IMV), admission to intensive care (ITUadm), acute kidney injury (AKI) and severe COVID-19 disease (SCov), in an unvaccinated population. Methodology We included studies published between 1st December 2019 and 16th July 2020 with extractable data on patients ≥18 years of age with suspected or confirmed SARS-CoV-2 infection. Odds ratios (OR) for the association between DM, HTN, IHD and myocardial injury with each of six COVID-19 outcomes were measured. Results We included 110 studies comprising 48,809 COVID-19 patients. Myocardial injury had the strongest association for all six adverse COVID-19 outcomes [death: OR 8.85 95% CI (8.08–9.68), ARDS: 5.70 (4.48–7.24), IMV: 3.42 (2.92–4.01), ITUadm: 4.85 (3.94–6.05), AKI: 10.49 (6.55–16.78), SCov: 5.10 (4.26–6.05)]. HTN and DM were also significantly associated with death, ARDS, ITUadm, AKI and SCov. There was substantial heterogeneity in the results, partly explained by differences in age, gender, geographical region and recruitment period. Conclusion COVID-19 patients with myocardial injury are at substantially greater risk of death, severe disease and other adverse outcomes. Weaker, yet significant associations are present in patients with HTN, DM and IHD. Quantifying these associations is important for risk stratification, resource allocation and urgency in vaccinating these populations. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, registration no: CRD42020201435 and CRD42020201443.
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Affiliation(s)
- Sher May Ng
- St. Bartholomew's Hospital, London, United Kingdom
| | - Jiliu Pan
- Royal Brompton and Harefield Hospitals, London, United Kingdom
| | - Kyriacos Mouyis
- Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Sreenivasa Rao Kondapally Seshasai
- Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, St. George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Vikas Kapil
- William Harvey Research Institute, Queen Mary University London, London, United Kingdom
| | - Kenneth M. Rice
- Department of Biostatistics, University of Washington, Seattle, WA, United States
| | - Ajay K. Gupta
- William Harvey Research Institute, Queen Mary University London, London, United Kingdom
- *Correspondence: Ajay K. Gupta
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79
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Mujahid N, Rajan A, Abul Y, Vura NVRK, Neupane I, LaPlante K, Gravenstein S. When to opt for preemptive anticoagulation with SARS-CoV-2 infection in the long-term care facilities. Aging Clin Exp Res 2022; 34:3171-3177. [PMID: 36434429 PMCID: PMC9702642 DOI: 10.1007/s40520-022-02304-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/04/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Nadia Mujahid
- grid.40263.330000 0004 1936 9094Division of Geriatrics and Palliative Care, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI USA
| | - Ashna Rajan
- grid.40263.330000 0004 1936 9094Division of Geriatrics and Palliative Care, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI USA
| | - Yasin Abul
- grid.40263.330000 0004 1936 9094Division of Geriatrics and Palliative Care, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI USA ,grid.458540.8Center on Innovation and Long-Term Services and Supports, Providence Veterans Administration Medical Center, Providence, RI USA
| | - Naga Venkata Rama Krishna Vura
- grid.267309.90000 0001 0629 5880Division of Hospital Medicine, University of Texas Health Science Center, San Antonio, USA
| | - Iva Neupane
- grid.40263.330000 0004 1936 9094Division of Geriatrics and Palliative Care, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI USA
| | - Kerry LaPlante
- grid.20431.340000 0004 0416 2242College of Pharmacy, University of Rhode Island, Providence, RI USA
| | - Stefan Gravenstein
- grid.40263.330000 0004 1936 9094Division of Geriatrics and Palliative Care, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI USA ,grid.458540.8Center on Innovation and Long-Term Services and Supports, Providence Veterans Administration Medical Center, Providence, RI USA
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80
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Platelets in COVID-19 disease: friend, foe, or both? Pharmacol Rep 2022; 74:1182-1197. [PMID: 36463349 PMCID: PMC9726679 DOI: 10.1007/s43440-022-00438-0] [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: 10/24/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 12/07/2022]
Abstract
Immuno-thrombosis of COVID-19 results in the activation of platelets and coagulopathy. Antiplatelet therapy has been widely used in COVID-19 patients to prevent thrombotic events. However, recent analysis of clinical trials does not support the major effects of antiplatelet therapy on mortality in hospitalized COVID-19 patients, despite the indisputable evidence for an increased risk of thrombotic complications in COVID-19 disease. This apparent paradox calls for an explanation. Platelets have an important role in sensing and orchestrating host response to infection, and several platelet functions related to host defense response not directly related to their well-known hemostatic function are emerging. In this paper, we aim to review the evidence supporting the notion that platelets have protective properties in maintaining endothelial barrier integrity in the course of an inflammatory response, and this role seems to be of particular importance in the lung. It might, thus, well be that the inhibition of platelet function, if affecting the protective aspect of platelet activity, might diminish clinical benefits resulting from the inhibition of the pro-thrombotic phenotype of platelets in immuno-thrombosis of COVID-19. A better understanding of the platelet-dependent mechanisms involved in the preservation of the endothelial barrier is necessary to design the antiplatelet therapeutic strategies that inhibit the pro-thrombotic activity of platelets without effects on the vaso-protective function of platelets safeguarding the pulmonary endothelial barrier during multicellular host defense in pulmonary circulation.
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