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Lester W, Bent C, Alikhan R, Roberts L, Gordon-Walker T, Trenfield S, White R, Forde C, Arachchillage DJ. A British Society for Haematology guideline on the assessment and management of bleeding risk prior to invasive procedures. Br J Haematol 2024; 204:1697-1713. [PMID: 38517351 DOI: 10.1111/bjh.19360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/23/2024]
Affiliation(s)
- Will Lester
- Department of Haematology, University Hospitals Birmingham, Birmingham, UK
| | - Clare Bent
- Department of Radiology, University Hospitals Dorset, Dorset, UK
| | - Raza Alikhan
- Department of Haematology, University Hospitals of Cardiff, Cardiff, UK
| | - Lara Roberts
- Department of Haematology, King College London, London, UK
| | - Tim Gordon-Walker
- Scottish Liver Transplant Unit, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Sarah Trenfield
- Department of Anaesthesia and Critical Care, Royal Brompton Hospital, London, UK
| | - Richard White
- Department of Radiology, Cardiff and Vale UHB, Cardiff, UK
| | - Colm Forde
- Department of Radiology, University Hospitals Birmingham, Birmingham, UK
| | - Deepa J Arachchillage
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, UK
- Department of Haematology, Imperial College Healthcare NHS Trust, London, UK
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2
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Platelet dysfunction persists after trauma despite balanced blood product resuscitation. Surgery 2023; 173:821-829. [PMID: 36280503 DOI: 10.1016/j.surg.2022.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 08/23/2022] [Accepted: 09/11/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Platelet activation and aggregation are critical to the initiation of hemostasis after trauma with hemorrhage. Platelet dysfunction is a well-recognized phenomenon contributing to trauma-induced coagulopathy. The goal of this study was to evaluate the timing and severity of platelet dysfunction in massively transfused, traumatically injured patients during the first 72 hours after injury and its association with 30-day survival. METHODS A retrospective secondary cohort study of platelet count and function was performed using samples from the Pragmatic Randomized Optimal Platelet and Plasma Ratios trial. Platelet characteristics were measured at 8 timepoints during the first 72 hours of hospitalization and compared between 30-day survivors and nonsurvivors. Platelet counts were assessed via flow cytometry. Platelet function was analyzed with the use of serial thrombelastography and impedance aggregometry with agonists arachidonic acid, adenosine diphosphate, collagen, thrombin receptor activating peptide, and ristocetin. RESULTS In total, 680 patients were included for analysis. Platelet counts were significantly lower from baseline to 72 hours after hospital admission with further 1.3 to 2-fold reductions noted in nonsurvivors compared to survivor patients. Platelet aggregation via adenosine diphosphate, arachidonic acid, collagen, thrombin receptor activating peptide, and ristocetin was significantly lower in nonsurvivors at all time points. The nadir of platelet aggregation was 2 to 6 hours after admission with significant improvements in viscoelastic maximum clot formation and agonist-induced aggregation by 12 hours without concomitant improvement in platelet count. CONCLUSION Platelet aggregability recovers 12 hours after injury independent of worsening thrombocytopenia. Failure of platelet function to recover portends a poor prognosis.
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Perioperative Management of Antiplatelet Therapy: A Systematic Review and Meta-analysis. Mayo Clin Proc Innov Qual Outcomes 2022; 6:564-573. [PMID: 36304523 PMCID: PMC9594114 DOI: 10.1016/j.mayocpiqo.2022.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To summarize the available evidence about the perioperative management of patients who are receiving long-term antiplatelet therapy and require elective surgery/procedures. METHODS This systematic review supports the development of the American College of Chest Physicians guideline on the perioperative management of antiplatelet therapy. A literature search of MEDLINE, EMBASE, Scopus and Cochrane databases was conducted from each database's inception to July 16, 2020. Meta-analyses were conducted when possible. RESULTS In patients receiving long-term antiplatelet therapy and undergoing elective noncardiac surgery, the available evidence did not show a significant difference in major bleeding between a shorter vs longer antiplatelet interruption, with low certainty of evidence (COE). Compared with patients who received placebo perioperatively, aspirin continuation was associated with increased risk of major bleeding (relative risk [RR], 1.31; 95% CI, 1.15-1.50; high COE) and lower risk of major thromboembolism (RR, 0.74; 95% CI, 0.58-0.94; moderate COE). During antiplatelet interruption, bridging with low-molecular-weight heparin was associated with increased risk of major bleeding compared with no bridging (RR, 1.86; 95% CI, 1.24-2.79; very low COE). Continuation of antiplatelets during minor dental and ophthalmologic procedures was not associated with a statistically significant difference in the risk of major bleeding (very low COE). CONCLUSION This systematic review summarizes the current evidence about the perioperative management of antiplatelet therapy and highlights the urgent need for further research, particularly with the increasing prevalence of patients taking 1 or more antiplatelet agents.
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Key Words
- ACCP/CHEST, American College of Chest Physicians
- ASA, acetylsalicylic acid
- ATE, arterial thromboembolism
- CABG, coronary artery bypass graft
- COE, certainty of evidence
- CV, cardiovascular
- DES, drug-eluting stent
- LMWH, low-molecular-weight heparin
- MI, myocardial infarction
- PE, pulmonary embolism
- PICO, patients–interventions–comparators–outcomes
- PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses
- RCT, randomized clinical trial
- RR, relative risk
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STS/SCA/AmSECT/SABM Update to the Clinical Practice Guidelines on Patient Blood Management. THE JOURNAL OF EXTRA-CORPOREAL TECHNOLOGY 2021; 53:97-124. [PMID: 34194077 DOI: 10.1182/ject-2100053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/16/2022]
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5
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Tibi P, McClure RS, Huang J, Baker RA, Fitzgerald D, Mazer CD, Stone M, Chu D, Stammers AH, Dickinson T, Shore-Lesserson L, Ferraris V, Firestone S, Kissoon K, Moffatt-Bruce S. STS/SCA/AmSECT/SABM Update to the Clinical Practice Guidelines on Patient Blood Management. Ann Thorac Surg 2021; 112:981-1004. [PMID: 34217505 DOI: 10.1016/j.athoracsur.2021.03.033] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 01/25/2023]
Affiliation(s)
- Pierre Tibi
- Department of Cardiovascular Surgery, Yavapai Regional Medical Center, Prescott, Arizona
| | - R Scott McClure
- Division of Cardiac Surgery, Libin Cardiovascular Institute, Foothills Medical Center, University of Calgary, Calgary, Alberta, Canada
| | - Jiapeng Huang
- Department of Anesthesiology & Perioperative Medicine, University of Louisville, Louisville, Kentucky
| | - Robert A Baker
- Cardiac Surgery Research and Perfusion, Flinders University and Flinders Medical Centre, Adelaide, South Australia, Australia
| | - David Fitzgerald
- Division of Cardiovascular Perfusion, Medical University of South Carolina, Charleston, South Carolina
| | - C David Mazer
- Department of Anesthesia, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Marc Stone
- Department of Anesthesia, Mount Sinai Medical Center, New York, New York
| | - Danny Chu
- Department of Cardiothoracic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Tim Dickinson
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota
| | - Linda Shore-Lesserson
- Department of Anesthesiology, Zucker School of Medicine at Hofstra/Northwell Northshore University Hospital, Manhasset, New York
| | - Victor Ferraris
- Division of Cardiovascular and Thoracic Surgery, University of Kentucky, Lexington, Kentucky
| | | | | | - Susan Moffatt-Bruce
- Division of Thoracic Surgery, Department of Surgery, University of Ottawa, Ottawa, Ontario, Canada.
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Tibi P, McClure RS, Huang J, Baker RA, Fitzgerald D, Mazer CD, Stone M, Chu D, Stammers AH, Dickinson T, Shore-Lesserson L, Ferraris V, Firestone S, Kissoon K, Moffatt-Bruce S. STS/SCA/AmSECT/SABM Update to the Clinical Practice Guidelines on Patient Blood Management. J Cardiothorac Vasc Anesth 2021; 35:2569-2591. [PMID: 34217578 DOI: 10.1053/j.jvca.2021.03.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Pierre Tibi
- Department of Cardiovascular Surgery, Yavapai Regional Medical Center, Prescott, Arizona
| | - R Scott McClure
- Division of Cardiac Surgery, Libin Cardiovascular Institute, Foothills Medical Center, University of Calgary, Calgary, Alberta, Canada
| | - Jiapeng Huang
- Department of Anesthesiology & Perioperative Medicine, University of Louisville, Louisville, Kentucky
| | - Robert A Baker
- Cardiac Surgery Research and Perfusion, Flinders University and Flinders Medical Centre, Adelaide, South Australia, Australia
| | - David Fitzgerald
- Division of Cardiovascular Perfusion, Medical University of South Carolina, Charleston, South Carolina
| | - C David Mazer
- Department of Anesthesia, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Marc Stone
- Department of Anesthesia, Mount Sinai Medical Center, New York, New York
| | - Danny Chu
- Department of Cardiothoracic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Tim Dickinson
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota
| | - Linda Shore-Lesserson
- Department of Anesthesiology, Zucker School of Medicine at Hofstra/Northwell Northshore University Hospital, Manhasset, New York
| | - Victor Ferraris
- Division of Cardiovascular and Thoracic Surgery, University of Kentucky, Lexington, Kentucky
| | | | | | - Susan Moffatt-Bruce
- Division of Thoracic Surgery, Department of Surgery, University of Ottawa, Ottawa, Ontario, Canada.
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Woźniak MJ, Abbasciano R, Monaghan A, Lai FY, Corazzari C, Tutino C, Kumar T, Whiting P, Murphy GJ. Systematic Review and Meta-Analysis of Diagnostic Test Accuracy Studies Evaluating Point-of-Care Tests of Coagulopathy in Cardiac Surgery. Transfus Med Rev 2020; 35:7-15. [PMID: 33187808 DOI: 10.1016/j.tmrv.2020.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 09/08/2020] [Accepted: 09/19/2020] [Indexed: 02/01/2023]
Abstract
Treatment guidelines recommend the routine use of point-of-care diagnostic tests for coagulopathy in the management of cardiac surgery patients at risk of severe bleeding despite uncertainty as to their diagnostic accuracy. We performed a systematic review and meta-analysis of studies that evaluated the diagnostic accuracy of viscoelastometry, platelet function tests, and modified thromboelastography (TEG) tests, for coagulopathy in cardiac surgery patients. The reference standard included resternotomy for bleeding, transfusion of non-red cell components, or massive transfusion. We searched MEDLINE, EMBASE, CINAHL, and Clinical Trials.gov, from inception to June 2019. Study quality was assessed using QUADAS-2. Bivariate models were used to estimate summary sensitivity and specificity with (95% confidence intervals). All 29 studies (7440 participants) included in the data synthesis evaluated the tests as predictors of bleeding. No study evaluated their role in the management of bleeding. None was at low risk of bias. Four were judged as low concern regarding applicability. Pooled estimates of diagnostic accuracy were; Viscoelastic tests, 12 studies, sensitivity 0.61 (0.44, 0.76), specificity 0.83 (0.70, 0.91) with significant heterogeneity. Platelet function tests, 12 studies, sensitivity 0.63 (0.53, 0.72), specificity 0.75 (0.64, 0.84) with significant heterogeneity. TEG modification tests, 3 studies, sensitivity 0.80 (0.67, 0.89), specificity 0.76 (0.69, 0.82) with no evidence of heterogeneity. Studies reporting the highest values for sensitivity and specificity had important methodological limitations. In conclusion, we did not demonstrate predictive accuracy for commonly used point-of-care devices for coagulopathic bleeding in cardiac surgery. However, the certainty of the evidence was low.
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Affiliation(s)
- Marcin J Woźniak
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK.
| | - Riccardo Abbasciano
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
| | - Alexandra Monaghan
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
| | - Florence Y Lai
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
| | - Claudio Corazzari
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK; Cardiac Surgery Unit, Insubria University, Varese, Italy
| | | | - Tracy Kumar
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
| | - Penny Whiting
- Centre for Research Synthesis and Decision Analysis (CReSyDA), Bristol Medical School, University of Bristol, Bristol, UK
| | - Gavin J Murphy
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
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Wang L, Valencia O, Phillips S, Sharma V. Implementation of Perioperative Point-of-Care Platelet Function Analyses Reduces Transfusion Requirements in Cardiac Surgery: A Retrospective Cohort Study. Thorac Cardiovasc Surg 2020; 69:710-718. [DOI: 10.1055/s-0040-1710582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Background Platelet dysfunction is a common cause of bleeding, perioperative blood transfusion, and surgical re-exploration in cardiac surgical patients. We evaluated the effect of incorporating a platelet function analyzer utilizing impedance aggregometry (Multiplate, Roche, Munich, Germany) into our local transfusion algorithm on the rate of platelet transfusion and postoperative blood loss in patients undergoing coronary artery bypass grafting (CABG) surgery.
Methods Data were collected on patients undergoing CABG surgery from January 2015 to April 2017. Patients who underwent surgery before and after introduction of this algorithm were classified into prealgorithm and postalgorithm groups, respectively. The primary outcome was the rate of platelet transfusion before and after implementation of the Multiplate-based transfusion algorithm. Secondary outcomes included transfusion rate of packed red blood cells, postoperative blood loss at 12 and 24 hours, length of stay in the intensive care unit, and the hospital and mortality.
Results A total of 726 patients were included in this analysis with 360 and 366 patients in the pre- and postalgorithm groups, respectively. Transfusion rates of platelets (p = 0.01) and packed red blood cells (p = 0.0004) were significantly lower following introduction of the algorithm in patients (n = 257) who had insufficient time to withhold antiplatelet agents. Receiver operating characteristic curves defined optimal cutoff points of arachidonic acid and adenosine diphosphate assays on the Multiplate to predict future platelet transfusion were 23AU and 43AU, respectively.
Conclusions The introduction of a Multiplate-based platelet transfusion algorithm showed a statistically significant reduction in the administration of platelets to patients undergoing urgent CABG surgery.
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Affiliation(s)
- Lihui Wang
- Department of Clinical Perfusion, St George's Hospital, London, United Kingdom
| | - Oswaldo Valencia
- Department of Cardiac Surgery, St George's Hospital, London, United Kingdom
| | - Simon Phillips
- Department of Clinical Perfusion, St George's Hospital, London, United Kingdom
| | - Vivek Sharma
- Department of Anaesthesia, St George's Hospital, London, United Kingdom
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Opheim EN, Apelseth TO, Stanworth SJ, Eide GE, Hervig T. Multiple electrode aggregometry and thromboelastography in thrombocytopenic patients with haematological malignancies. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2019; 17:181-190. [PMID: 30747706 PMCID: PMC6596372 DOI: 10.2450/2018.0140-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/07/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND In thrombocytopenic patients better assessment of bleeding risk than that provided by platelet count alone is required. Multiplate® aggregometry and thromboelastography (TEG) could be used, but information on their role in such patients is limited. The primary aim of this study was to investigate the feasibility of Multiplate® analyses in patients with haematological malignancies. A secondary aim was to explore whether a multiple logistic regression model combining Multiplate®, TEG, clinical and laboratory variables was associated with risk of bleeding. MATERIALS AND METHODS This was an exploratory, prospective observational study of thrombocytopenic patients with haematological malignancies. Total platelet count (TPC), white blood cell count, C-reactive protein (CRP) level, temperature and bleeding status were recorded daily. TEG and Multiplate® analyses with four agonists were performed on weekdays. RESULTS Ten patients were enrolled into the study. The median number of days in a study period was 21. Bleeding was observed on 64 of 298 study days. TPC <20×109/L and <10×109/L occurred on 119 and 25 days, respectively. When TPC was <33×109/L, many samples showed no aggregation, regardless of bleeding status. Despite this, the odds of World Health Organization (WHO) grade 2 bleeding decreased significantly as aggregation increased and Multiplate® had a negative predictive value (NPV) of 96% and a positive predictive value (PPV) of 19% for significant bleeding. In the multiple logistic regression model collagen-activated Multiplate® aggregation, TEG angle, TEG reaction time and CRP significantly affected the odds of WHO grade 2 bleeding. The combined model had a NPV of 99% and a PPV of 19%. DISCUSSION Our findings suggest that the markers of platelet function and haemostasis provided by Multiplate® aggregometry and TEG may add information to support prediction of bleeding, although platelet count still remains the most accessible analysis for routine testing.
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Affiliation(s)
- Elin N. Opheim
- Department of Clinical Science, University of Bergen, Norway
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
| | - Torunn O. Apelseth
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
- Laboratory of Clinical Biochemistry, Haukeland University Hospital, Bergen, Norway
| | - Simon J. Stanworth
- NHS Blood and Transplant/Oxford University Hospitals NHS Trust, “John Radcliffe” Hospital, Oxford, United Kingdom
| | - Geir E. Eide
- Department of Global Public Health and Primary Care, University of Bergen, Norway
- Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
| | - Tor Hervig
- Department of Clinical Science, University of Bergen, Norway
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
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Anders M, Rock P, Cartron A, Chow J, Henderson R, Martz D, Tanaka K, Mazzeffi M. Isolated platelet concentrate transfusion during surgery: a single‐center observational cohort study. Transfusion 2019; 59:1661-1666. [DOI: 10.1111/trf.15156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/20/2018] [Accepted: 12/29/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Megan Anders
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Peter Rock
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Alex Cartron
- University of Maryland School of Medicine Baltimore Maryland
| | - Jonathan Chow
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Reney Henderson
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Douglas Martz
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Kenichi Tanaka
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
| | - Michael Mazzeffi
- Department of AnesthesiologyUniversity of Maryland School of Medicine Baltimore Maryland
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Zhou H, Chen L, He H. Intraoperative and postoperative effects of TEG-guided platelet transfusion on antiplatelet drug-related intracerebral hemorrhage patients. Exp Ther Med 2019; 17:2263-2267. [PMID: 30783485 PMCID: PMC6364191 DOI: 10.3892/etm.2019.7169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 12/28/2018] [Indexed: 12/24/2022] Open
Abstract
Intraoperative and postoperative effects of platelet transfusion on antiplatelet drug-related intracerebral hemorrhage (ICH) patients were investigated. A retrospective study on 82 ICH patients undergoing emergency surgical treatment caused by antiplatelet drugs was conducted. Among them, 51 patients treated with platelet transfusion served as the observation group and 31 patients without platelet transfusion as the control group. The intraoperative and postoperative bleeding volume, blood transfusion volume and the rate of secondary bleeding were compared between observation and control group under the guidance of thromboelastography (TEG). The coagulation routine examination results of the two groups before surgery were in the normal range, but TEG indicated an excessive inhibition of platelet function (platelet inhibition rate >89%). The platelet number after treatment increased significantly in the two groups of patients and it was significantly higher in observation group than that in control group (P<0.05). The intraoperative bleeding volume in observation group was significantly lower than that in control group. The total blood transfusion volume in observation group was significantly lower than that in control group (Z=2.681, P=0.036), the postoperative hematoma residual volume in observation group was significantly lower than that in control group (t=2.145, P=0.035), and the drainage volume in observation group was significantly lower than that in control group (t=2.401, P=0.019). Only 3.92% of the patients in observation group and 19.35% in control group had secondary surgery, and the difference of the recurrence rate of secondary bleeding between the two groups was statistically significant (χ2=3.610, P=0.048). TEG detection indicator can more comprehensively and accurately evaluate the preoperative coagulation function of patients. This study suggests that preoperative platelet transfusion can improve the intraoperative and postoperative bleeding of ICH patients after antiplatelet therapy to some extent, reducing the blood transfusion volume and the secondary bleeding rate.
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Affiliation(s)
- Hao Zhou
- Department of Blood Transfusion, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Li Chen
- Department of Blood Transfusion, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Hongtian He
- Department of Blood Transfusion, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
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Raspé C, Besch M, Charitos EI, Flöther L, Bucher M, Rückert F, Treede H. Rotational Thromboelastometry for Assessing Bleeding Complications and Factor XIII Deficiency in Cardiac Surgery Patients. Clin Appl Thromb Hemost 2018; 24:136S-144S. [PMID: 30198311 PMCID: PMC6714825 DOI: 10.1177/1076029618797472] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We aimed to detect alterations and deficits in hemostasis during cardiac surgery with
cardiopulmonary bypass (CPB) using point-of-care-supported coagulation analysis
(rotational thromboelastometry, impedance aggregometry), in addition to single factor
assays for the measurement of fibrinogen (FI) and factor XIII (FXIII) levels. Forty-one
patients scheduled for elective cardiac surgery with CPB were enrolled in this
observational study. Perioperative measurement (pre-, postheparin, 30-minutes before the
end of bypass, 1-hourpostoperatively) of standard laboratory variables, additional
rotational thromboelastometry (ROTEM; International GmbH, Munich, Germany), Multiplate
analysis (Roche, Switzerland), and an assay of FXIII activity were performed as well as
the collection of epidemiological data and blood loss. The FI and FXIII levels as well as
the measured ROTEM and Multiplate parameters correlated weakly with the blood loss.
Clotting time and maximum clot firmness (MCF) of the intrinsically activated ROTEM showed
a good correlation (rCT-INTEM = 0.378; P <
.05, rMCF-INTEM = 0.305; P < .05) with
postoperative drainage loss, suggesting a dependence of blood loss on the initial
intrinsic activity. Additionally, perioperative FI or FIBTEM levels and the FXIII levels
correlated with each other. Intrinsically activated ROTEM showed a good correlation with
postoperative drainage loss, thus suggesting a dependence of blood loss on the initial
intrinsic activity and therefore facilitating clinicians to assess postoperative bleeding
complications. Based on the FI level or the MCFFIBTEM measured by ROTEM, it may
also be possible to assess the FXIII concentration. Especially in chronically ill and
massive bleeding cardiac surgery patients with significantly decreased FXIII levels, the
knowledge of FXIII deficiency may help clinicians to treat coagulation disorders more
adequately.
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Affiliation(s)
- Christoph Raspé
- Department of Anesthesiology and Critical Care Medicine, Halle-Wittenberg University, Halle, Germany
| | - Maximilian Besch
- Department of Anesthesiology and Critical Care Medicine, Halle-Wittenberg University, Halle, Germany
| | | | - Lilit Flöther
- Department of Anesthesiology and Critical Care Medicine, Halle-Wittenberg University, Halle, Germany
| | - Michael Bucher
- Department of Anesthesiology and Critical Care Medicine, Halle-Wittenberg University, Halle, Germany
| | - Florian Rückert
- Department of Anesthesiology and Critical Care Medicine, Halle-Wittenberg University, Halle, Germany
| | - Hendrik Treede
- Department of Cardiac Surgery, Halle-Wittenberg University, Halle, Germany
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Shirozu K, Fujimura N, Karashima Y, Ikeda M, Kitada H, Okabe Y, Kurihara K, Henzan T, Hoka S. Effects of preoperative plasma exchange therapy with albumin replacement fluid on blood coagulation in patients undergoing ABO-incompatible living-donor kidney transplantation using rotational thromboelastometry. BMC Anesthesiol 2018; 18:68. [PMID: 29921231 PMCID: PMC6008919 DOI: 10.1186/s12871-018-0536-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/30/2018] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND ABO-incompatible living-donor kidney transplantation (LDKT) requires immunotherapy and plasma exchange therapy (PEX). PEX with albumin replacement fluid reportedly decreases fibrinogen levels. However, no reports have described the effects of PEX with albumin replacement fluid on blood coagulation parameters and blood loss during the perioperative period. Therefore, we investigated the effects of preoperative PEX on blood coagulation parameters and blood loss during the perioperative period in patients undergoing ABO-incompatible LDKT as measured by rotational thromboelastometry (ROTEM®). METHODS Twenty-eight patients undergoing LDKT were divided into the PEX group (ABO incompatible with PEX, n = 13) and non-PEX group (ABO compatible without PEX, n = 15). ROTEM® parameters, standard laboratory test parameters, bleeding volume, and transfusion volume were compared between PEX and non-PEX group. MCEplatelet, which represents platelet contribution to clot strength and where "MCE" stands for maximum clot elasticity, was calculated from the difference in MCE between EXTEM and FIBTEM. RESULTS The bleeding volume during surgery and the intensive care unit (ICU) stay was significantly higher in the PEX than non-PEX group (p < 0.01). Maximum clot firmness (MCF) of EXTEM (MCFEXTEM), MCFFIBTEM, and MCEplatelet was significantly lower in the PEX than non-PEX group (p < 0.01). In the PEX group, the bleeding volume during surgery was very strongly correlated with the baseline MCFEXTEM and MCEplatelet, and the bleeding volume during the ICU stay was strongly correlated with the postoperative MCFEXTEM and MCEplatelet. CONCLUSIONS These results suggest that the increased blood loss in the PEX group during surgery and the ICU stay was associated with decreased platelet contribution to clot strength as measured by ROTEM®. TRIAL REGISTRATION UMIN-Clinical Trial Registry UMIN000018355 . Registered 21 July 2015.
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Affiliation(s)
- Kazuhiro Shirozu
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Naoyuki Fujimura
- Department of Anesthesiology, St. Mary's Hospital, Kurume, Japan
| | - Yuji Karashima
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mizuko Ikeda
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hidehisa Kitada
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuhiro Okabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kei Kurihara
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoko Henzan
- Center for Cellular and Molecular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Sumio Hoka
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Jilma-Stohlawetz P, Fritsche-Polanz S, Quehenberger P, Schörgenhofer C, Bartko J, Ristl R, Jilma B. Evaluation of between-, within- and day-to-day variation of coagulation measured by rotational thrombelastometry (ROTEM). Scandinavian Journal of Clinical and Laboratory Investigation 2017; 77:651-657. [DOI: 10.1080/00365513.2017.1394487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Petra Jilma-Stohlawetz
- Department of Laboratory Medicine, Division of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Vienna, Austria
| | | | - Peter Quehenberger
- Department of Laboratory Medicine, Division of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Vienna, Austria
| | | | - Johann Bartko
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Robin Ristl
- Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - Bernd Jilma
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
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Perioperative changes in platelet count and function in patients undergoing cardiac surgery. Med J Islam Repub Iran 2017; 31:37. [PMID: 29445666 PMCID: PMC5804419 DOI: 10.14196/mjiri.31.37] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Indexed: 11/18/2022] Open
Abstract
Background: Patients undergoing cardiac surgery are at increased risk of bleeding due to multifactorial coagulopathies. In the present
study, we aimed at investigating the changes in platelet count and function during and after surgery as well as determining the
association of the platelet dysfunction with bleeding and transfusion requirements in these patients.
Methods: A total of 40 adult patients scheduled for elective valve coronary cardiac surgery were included in this prospective observational
study. Changes in platelet count and function with ADP, acid arachidonic, and collagen (light transmission aggregometry)
were analyzed at three time points: before CPB, after CPB, and 24 hours after end of surgery. Postoperative bleeding and intraoperative
transfusion requirements were recorded.
Results: There were a significant reverse correlation between CPB time and ADP-induced aggregation, particularly after CPB and
postoperative AA-induced aggregation. There was not any significant correlation between platelet count and function at all-time
points. Both platelet count and platelet aggregation significantly reduced during CPB. While platelet aggregation increased on postoperative
Day 1, platelet count reduced by about 40% after CPB, and remained at this level postoperatively. Patients with abnormal
ADP-induced aggregation had significant increased postoperative bleeding and transfusion requirements.
Conclusion: The results of this study demonstrate that platelet count and platelet aggregation are reduced during CPB. Our results
emphasized the effect of platelet dysfunction on increased postoperative bleeding and transfusion requirements. Perioperative monitoring
of platelet function can be considered as a bleeding management strategy for implantation of PBM programs.
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Bang J, Choi SY, Kim MH, Serebruany V. CRUSADE Score is Superior to Platelet Function Testing for Prediction of Bleeding in Patients Following Coronary Interventions. EBioMedicine 2017; 21:213-217. [PMID: 28596132 PMCID: PMC5514378 DOI: 10.1016/j.ebiom.2017.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 05/08/2017] [Accepted: 05/08/2017] [Indexed: 11/28/2022] Open
Abstract
Hypothetically, diminished platelet reactivity (PR) during dual antiplatelet therapy (DAPT) should cause extra major bleeding events (MBE), although definite evidence is lacking. Multiple scores have been proposed to stratify bleeding risk, but their predictive value during DAPT is unclear. We compared the performance of the Can Rapid Risk Stratification of Unstable Angina Patients Suppress Adverse Outcomes with Early Implementation of the ACC/AHA Guidelines (CRUSADE) with PR testing to predict MBE in Korean patients with acute coronary syndrome. We screened 1105, and included 903 consecutive patients who underwent coronary interventions. All patients received DAPT, while MBE were assessed by BARC scale. Admission platelet reactivity was assessed with VerifyNow Analyzer simultaneously with CRUSADE score, and MBE were collected at 1 month and at 1 year post stenting. There were a total of 113 (11%) MBE at 1 month, and extra 41(5%) MBE at 1 year. At 1 month MBE prediction was superior by CRUSADE score (AUC: 0.816, 95% CI: 0.79 0.84, p < 0.0001), compared to PR (AUC: 0.605, 95% CI: 0.572–0.637, p = 0.0007). Moreover, CRUSADE score remains the independent predictor of MBE by multivariate analyses (OR = 2.94, 95% CI: 2.18–3.96, p < 0.0001). At 1 year MBE also correlated, but were not significantly different between admission CRUSADE score (AUC: 0.62, 95% CI: 0.58 0.66, p = 0.0183) and PR (AUC: 0.674, 95% CI: 0.63–0.71, p = 0.002). We conclude that MBE are more common in real life than reported in clinical trials. CRUSADE score was superior to PR testing for predicting short-term, but not 1 year MBE in Korean patients undergoing percutaneous coronary intervention and treated with DAPT. Dual antiplatelet therapy for 1 year is a golden standard following coronary stenting in patients with acute coronary syndromes. Bleeding is a life-threatening major complication associated with chronic aggressive antiplatelet strategies. Predicting bleeding based on clinical features or established biomarkers is upmost yet unsolved mystery affecting clinical outcomes in such high-risk patients The CRUSADE clinical score predicts bleeding better than platelet reactivity indices Short-term bleedings at 30 days, but not delayed 1-yearly hemorrhages were better predicted by CRUSAIDE in East Asians.
Dual antiplatelet therapy for 1 year is common following coronary stenting in patients with acute coronary syndromes. However, bleeding is a life-threatening major complication and shortcoming associated with chronic aggressive antiplatelet strategies. CRUSADE score was introduced for better prediction of in-hospital bleeding, while delayed bleeding risks remained unclear. Usually bleeding risk is assessed based on clinical features or by established biomarkers We tested the hypothesis on the superiority of CRUSADE score versus conventional platelet reactivity in a large Korean registry, and revealed the following: major bleeding events in real life are more frequent, and are heavily unreported in clinical trials; the CRUSADE clinical score predicts bleeding better than platelet reactivity indices. Unfortunately, short-term bleedings at 30 days, but not delayed 1-yearly hemorrhages were better predicted by CRUSADE in East Asians.
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Affiliation(s)
- Junghee Bang
- Department of Cardiovascular Surgery, Dong-A University Hospital, Busan, South Korea
| | - Sun Young Choi
- Heart and Brain Clinical Center, Dong-A University Hospital, Busan, South Korea
| | - Moo Hyun Kim
- Heart and Brain Clinical Center, Dong-A University Hospital, Busan, South Korea; Department of Cardiology, Dong-A University Hospital, Busan, South Korea
| | - Victor Serebruany
- HeartDrug™ Research Laboratories, Johns Hopkins University, Baltimore, MD, USA.
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17
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Fahrendorff M, Oliveri RS, Johansson PI. The use of viscoelastic haemostatic assays in goal-directing treatment with allogeneic blood products - A systematic review and meta-analysis. Scand J Trauma Resusc Emerg Med 2017; 25:39. [PMID: 28403868 PMCID: PMC5390346 DOI: 10.1186/s13049-017-0378-9] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/21/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Management of the critically bleeding patient can be encountered in many medical and surgical settings. Common for these patients is a high risk of dying from exsanguination secondary to developing coagulopathy. The purpose of this meta-analysis was to systematically review and assess randomised controlled trials (RCTs) performed on patients in acute need for blood transfusions due to bleeding to evaluate the effect of viscoelastic haemostatic assay (VHA) guidance on bleeding, transfusion requirements and mortality. METHODS PubMed and EMBASE were searched for RCTs that 1) randomised patients into receiving transfusions based on either a VHA-guided (thromboelastography [TEG] or rotational thromboelastometry [ROTEM]) algorithm (intervention group) or at the clinician's discretion and/or based on conventional coagulation tests (control group) and 2) adequately reported on the outcomes bleeding and/or transfusions and/or mortality. Data on bleeding, transfusions and mortality were extracted from each trial and included in a meta-analysis. RESULTS Fifteen RCTs (n = 1238 patients) were included. Nine trials referred to cardiothoracic patients, one to liver transplantation, one to surgical excision of burn wounds and one to trauma. One trial was conducted with cirrhotic patients, one with patients undergoing scoliosis surgery while one trial randomised treatment in post-partum females presenting with bleeding. The amount of transfused red blood cells (RBCs), fresh frozen plasma (FFP) and bleeding volume was found to be significantly reduced in the VHA-guided groups, whereas no significant difference was found for platelet transfusion requirements or mortality.
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Affiliation(s)
- Mathilde Fahrendorff
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK–2100 Copenhagen, Denmark
| | - Roberto S. Oliveri
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK–2100 Copenhagen, Denmark
| | - Pär I. Johansson
- Section for Transfusion Medicine, Capital Region Blood Bank, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK–2100 Copenhagen, Denmark
- Department of Surgery, Centre for Translational Injury Research, UT Health, University of Texas Health Science Center at Houston, Houston, TX USA
- Center for Systems Biology. The School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland
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Gorlinger K, Bhardwaj V, Kapoor PM. Simulation in coagulation testing using rotational thromboelastometry: A fast emerging, reliable point of care technique. Ann Card Anaesth 2017; 19:516-20. [PMID: 27397458 PMCID: PMC4971982 DOI: 10.4103/0971-9784.185546] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Computer simulations can come in handy to train medical personnel with necessary skills to face the clinical scenarios involving various coagulopathies. Now a days, point of care (POC) devices such as thromboelastography, Sonoclot analyzer and newly approved rotational thromboelastometry (ROTEM) with faster results to assess coagulopathies are available on bedside of patients. ROTEM is emerging as a quick, portable, and well-validated device to evaluate coagulopathy in critical care and perioperative setup. A novel platelet-aggregometry integrated module enables simultaneous analysis of platelets as well as coagulation tests on the same screen. The entire gamut of POC signature curves obtained with different coagulation defects can be learned with graphical simulations. These simulations can be a valuable strategy to elucidate latent conditions, for which simulation interventions can then be designed to mimic different clinical scenarios.
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Affiliation(s)
- Klaus Gorlinger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Essen, Essen, Germany
| | - Vandana Bhardwaj
- Department of Cardiac Anaesthesiology, Cardio Thoracic Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Poonam Malhotra Kapoor
- Department of Cardiac Anaesthesiology, Cardio Thoracic Centre, All India Institute of Medical Sciences, New Delhi, India
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19
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What’s New in Point-of-Care Testing? POINT OF CARE 2016. [DOI: 10.1097/poc.0000000000000041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Gurajala I, Gopinath R. Perioperative management of patient with intracoronary stent presenting for noncardiac surgery. Ann Card Anaesth 2016; 19:122-31. [PMID: 26750683 PMCID: PMC4900389 DOI: 10.4103/0971-9784.173028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
As the number of percutaneous coronary interventions increase annually, patients with intracoronary stents (ICS) who present for noncardiac surgery (NCS) are also on the rise. ICS is associated with stent thrombosis (STH) and requires mandatory antiplatelet therapy to prevent major adverse cardiac events. The risks of bleeding and ischemia remain significant and the management of these patients, especially in the initial year of ICS is challenging. The American College of Cardiologists guidelines on the management of patients with ICS recommend dual antiplatelet therapy (DAT) for minimal 14 days after balloon angioplasty, 30 days for bare metal stents, and 365 days for drug-eluting stents. Postponement of elective surgery is advocated during this period, but guidelines concerning emergency NCS are ambiguous. The risk of STH and surgical bleeding needs to be assessed carefully and many factors which are implicated in STH, apart from the type of stent and the duration of DAT, need to be considered when decision to discontinue DAT is made. DAT management should be a multidisciplinary exercise and bridging therapy with shorter acting intravenous antiplatelet drugs should be contemplated whenever possible. Well conducted clinical trials are needed to establish guidelines as regards to the appropriate tests for platelet function monitoring in patients undergoing NCS while on DAT.
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Affiliation(s)
- Indira Gurajala
- Department of Anaesthesiology and Critical Care, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India
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21
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Ellis J, Valencia O, Crerar-Gilbert A, Phillips S, Meeran H, Sharma V. Point-of-care platelet function testing to predict blood loss after coronary artery bypass grafting surgery: a prospective observational pilot study. Perfusion 2016; 31:676-682. [DOI: 10.1177/0267659116656774] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Aim: With an increase in the number of patients who are on antiplatelet medications until the day of surgery, we undertook a prospective observational study to assess the ability of thromboelastography, thromboelastography platelet mapping and aggregometry via multiplate to detect platelet dysfunction and predict blood loss following coronary artery bypass grafting (CABG) surgery. Methods: Platelet function was evaluated pre- and post-cardiopulmonary bypass via thromboelastography, thromboelastography platelet mapping and aggregometry via multiplate in 52 patients undergoing coronary artery bypass grafting surgery. The median chest tube drainage of all patients in the study was ascertained to stratify patients into two groups: patients with and those without evidence of excessive blood loss after cardiac surgery. Results: Although all modalities could detect a decrease in platelet function following cardiopulmonary bypass, univariate and multivariate regression analysis identified preoperative arachidonic acid and adenosine diphosphate testing via multiplate as independent predictors of bleeding after cardiac surgery. Receiver operating curves on these multiplate parameters showed an area under the curve of 0.68 (p=0.03) and 0.66 (p=0.01) for arachidonic acid and adenosine diphosphate assays, respectively. Conclusion: This pilot study shows that preoperative multiplate testing may be a better predictor of platelet dysfunction and the resultant blood loss following cardiac surgery.
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Affiliation(s)
- James Ellis
- Department of Clinical Perfusion, St George’s Hospital, London, UK
| | | | | | - Simon Phillips
- Department of Clinical Perfusion, St George’s Hospital, London, UK
| | - Hanif Meeran
- Department of Anaesthesia, St George’s Hospital, London, UK
| | - Vivek Sharma
- Department of Anaesthesia, St George’s Hospital, London, UK
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22
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Laine A, Niemi T, Suojaranta-Ylinen R, Raivio P, Soininen L, Lemström K, Hämmäinen P, Schramko A. Decreased maximum clot firmness in rotational thromboelastometry (ROTEM®) is associated with bleeding during extracorporeal mechanical circulatory support. Perfusion 2016; 31:625-633. [PMID: 27125829 DOI: 10.1177/0267659116647473] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND: We aimed to characterize the coagulation disturbances which may increase the risk of bleeding, thrombosis or death shortly after implantation of an extracorporeal membrane oxygenation (ECMO) or ventricular assist (VAD) device. METHODS: Antithrombotic treatment was started in 23 VAD and 24 ECMO patients according to the hospital protocol. Additionally, conventional laboratory testing, rotational thromboelastometry (ROTEM®) and platelet function analysis (Multiplate®) were performed at predetermined intervals. RESULTS: Four out of twenty-four (16.7%) of ECMO patients and 6/23 (26.1%) of VAD patients had severe bleeding after the procedure. When all the patients were analyzed together, low maximum clot firmness (MCF) in ExTEM and FibTEM analyses was associated with severe bleeding (p<0.05) and low MCF in FibTEM with 30-day mortality. Low platelet count and hematocrit levels were also associated with severe bleeding. When VAD and ECMO patients were separated into different groups, the association between ROTEM® parameters, bleeding and survival was found only in limited time points. Four patients with VAD had cerebral ischemia indicative of thromboembolism. However, this had no significant correlation with ROTEM® or Multiplate® parameters. CONCLUSION: Hypocoagulation shown by ROTEM® was associated with bleeding complications in patients with mechanical circulatory support. In contrast, hypercoagulation did not correlate with clinical thrombosis.
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Affiliation(s)
- Antti Laine
- 1 Division of Anaesthesiology, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Tomi Niemi
- 1 Division of Anaesthesiology, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Raili Suojaranta-Ylinen
- 2 Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Peter Raivio
- 3 Heart and Lung Center, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Leena Soininen
- 2 Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Karl Lemström
- 3 Heart and Lung Center, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Pekka Hämmäinen
- 3 Heart and Lung Center, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Alexey Schramko
- 1 Division of Anaesthesiology, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.,2 Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
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Kim MH, Choi SY, An SY, Serebruany V. Validation of Three Platelet Function Tests for Bleeding Risk Stratification During Dual Antiplatelet Therapy Following Coronary Interventions. Clin Cardiol 2016; 39:385-90. [PMID: 27355612 DOI: 10.1002/clc.22540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 02/29/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Although low platelet reactivity (LPR) is commonly detected during bleeding, a validated threshold for reliable DAPT bleeding risk stratification is lacking. We tested the diagnostic utility of 3 conventional platelet-activity assays to define the predictive value (if any) of LPR for bleeding. HYPOTHESIS We hypothesized whether one of these tests be better than any others for predicting bleeding events. METHODS Patients (n = 800) following drug-eluting stent implantation received DAPT. Bleeding was assessed by Bleeding Academic Research Consortium (BARC) classification and events were collected for 1 year after stenting. Platelet reactivity was measured by light transmittance aggregometry (LTA), VerifyNow, and multiple electrode aggregometry (MEA). The LPR values for bleeding event stratification were defined as ≤15% for LTA, ≤139 PRU for VerifyNow, and ≤25 U for MEA. RESULTS Bleeding events occurred in 18 patients (2.3%). All tests distinguished LPR as an independent predictor for bleeding by univariate analysis ([HR]: 5.00, 95% [CI]: 1.8-14.0, P = 0.002 for LTA; HR: 21.3, 95% CI: 6.2-73.0, P < 0.0001 for VerifyNow; and HR: 7.4, 95% CI: 2.2-25.5, P = 0.002 for MEA). Multivariate analysis revealed that only VerifyNow (HR: 11.5, 95% CI: 2.9-45.7, P < 0.0004) remained an independent predictor for bleeding. However, the specificity (81.5%, 60.2%, and 81.7%, respectively) and sensitivity (61.1%, 83.3%, and 83.2%, respectively) of all 3 tests were quite low. CONCLUSIONS Among 3 conventional platelet-activity assays, VerifyNow was better than LTA or MEA for triaging future bleeding risks. However, all 3 tests failed to reliably predict future bleeding.
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Affiliation(s)
- Moo Hyun Kim
- Clinical Trial Center, Dong-A University Hospital, Busan, South Korea.,Department of Cardiology, Dong-A University Hospital, Busan, South Korea
| | - Sun Young Choi
- Clinical Trial Center, Dong-A University Hospital, Busan, South Korea
| | - Soo Yeon An
- Clinical Trial Center, Dong-A University Hospital, Busan, South Korea
| | - Victor Serebruany
- HeartDrug Research Laboratories, Johns Hopkins University, Baltimore, Maryland
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24
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The challenge for predicting bleeding events by assessing platelet reactivity following coronary stenting. Int J Cardiol 2016; 207:128-31. [DOI: 10.1016/j.ijcard.2016.01.102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/02/2016] [Accepted: 01/04/2016] [Indexed: 11/19/2022]
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Mărginean A, Bănescu C, Scridon A, Dobreanu M. Anti-platelet Therapy Resistance - Concept, Mechanisms and Platelet Function Tests in Intensive Care Facilities. J Crit Care Med (Targu Mures) 2016; 2:6-15. [PMID: 29967831 PMCID: PMC5939137 DOI: 10.1515/jccm-2015-0021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 07/10/2015] [Indexed: 01/22/2023] Open
Abstract
It is well known that critically ill patients require special attention and additional consideration during their treatment and management. The multiple systems and organ dysfunctions, typical of the critical patient, often results in different patterns of enteral absorption in these patients. Anti-platelet drugs are the cornerstone in treating patients with coronary and cerebrovascular disease. Dual anti-platelet therapy with aspirin and clopidogrel is the treatment of choice in patients undergoing elective percutaneous coronary interventions and is still widely used in patients with acute coronary syndromes. However, despite the use of dual anti-platelet therapy, some patients continue to experience cardiovascular ischemic events. Recurrence of ischemic events is partly attributed to the fact that some patients have poor inhibition of platelet reactivity despite treatment. These patients are considered low- or non-responders to therapy. The underlying mechanisms leading to resistance are not yet fully elucidated and are probably multifactorial, cellular, genetic and clinical factors being implicated. Several methods have been developed to asses platelet function and can be used to identify patients with persistent platelet reactivity, which have an increased risk of thrombosis. In this paper, the concept of anti-platelet therapy resistance, the underlying mechanisms and the methods used to identify patients with low responsiveness to anti-platelet therapy will be highlighted with a focus on aspirin and clopidogrel therapy and addressing especially critically ill patients.
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Affiliation(s)
- Alina Mărginean
- University of Medicine and Pharmacy of Tîrgu Mures, Tîrgu Mures, Romania
- Emergency Military Hospital “Dr. Constantin Papilian”, Cluj-Napoca, Romania
| | - Claudia Bănescu
- University of Medicine and Pharmacy of Tîrgu Mures, Tîrgu Mures, Romania
| | - Alina Scridon
- University of Medicine and Pharmacy of Tîrgu Mures, Tîrgu Mures, Romania
| | - Minodora Dobreanu
- University of Medicine and Pharmacy of Tîrgu Mures, Tîrgu Mures, Romania
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Norman JE, Lee KR, Walker ME, Murden SL, Harris J, Mundell S, J Murphy G, Mumford AD. Low multiple electrode aggregometry platelet responses are not associated with non-synonymous variants in G-protein coupled receptor genes. Thromb Res 2015; 136:818-24. [PMID: 26297398 DOI: 10.1016/j.thromres.2015.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/08/2015] [Accepted: 08/10/2015] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Multiple electrode aggregometry (MEA) improves prediction of thrombosis and bleeding in cardiac patients. However, the causes of inter-individual variation in MEA results are incompletely understood. We explore whether low MEA results are associated with platelet G-protein coupled receptor (GPCR) gene variants. METHODS The effects of P2Y12 receptor (P2Y12), thromboxane A2 receptor (TPα) and protease-activated receptor 1 (PAR1) dysfunction on the MEA ADP-test, ASPI-test and TRAP-test were determined using receptor antagonists. Cardiac surgery patients with pre-operative MEA results suggesting GPCR dysfunction were selected for P2Y12 (P2RY12), TPα (TBXA2R) and PAR1 (F2R) sequencing. RESULTS In control blood samples, P2Y12, TPα or PAR1 antagonists markedly reduced ADP-test, ASPI-test and TRAP-test results respectively. In the 636 patients from a cohort of 2388 cardiac surgery patients who were not receiving aspirin or a P2Y12 blocker, the median ADP-test result was 75.1 U (range 4.8-153.2), ASPI-test 83.7 U (1.4-157.3) and TRAP-test 117.7 U (2.4-194.1), indicating a broad range of results unexplained by anti-platelet drugs. In 238 consenting patients with unexplained low MEA results, three P2RY12 variants occurred in 70/107 (65%) with suspected P2Y12 dysfunction and four TBXA2R variants occurred in 19/22 (86%) with suspected TPα dysfunction although the later group was too small to draw meaningful conclusions about variant frequency. All the variants were synonymous and unlikely to cause GPCR dysfunction. There were no F2R variants in the 109 cases with suspected PAR1 dysfunction. CONCLUSION MEA results suggesting isolated platelet GPCR dysfunction were common in cardiac surgery patients, but were not associated with non-synonymous variants in P2RY12 or F2R.
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Affiliation(s)
- Jane E Norman
- School of Clinical Sciences, University of Bristol, Bristol, UK.
| | - Kurtis R Lee
- University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Mary E Walker
- University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | | | - Jessica Harris
- School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Stuart Mundell
- School of Physiology and Pharmacology, University of Bristol, Bristol, UK
| | - Gavin J Murphy
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - Andrew D Mumford
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
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Ranucci M, Baryshnikova E, Crapelli GB, Ranucci M, Meloni S, Pistuddi V. Electric impedance platelet aggregometry in cardiac surgery patients: A comparative study of two technologies. Platelets 2015; 27:185-90. [DOI: 10.3109/09537104.2015.1065962] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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