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Barbu M, Kolsrud O, Radulovic V, Dellgren G, Björk K, Thorén A, Pivodic A, Ricksten SE, Jeppsson A. Hemostatic effects of a dextran-based priming solution for cardiopulmonary bypass: A secondary analysis of a randomized clinical trial. Thromb Res 2023; 223:139-145. [PMID: 36753875 DOI: 10.1016/j.thromres.2023.01.028] [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: 08/24/2022] [Revised: 01/15/2023] [Accepted: 01/27/2023] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Intravascular fluids administered to patients may influence hemostasis. In patients undergoing cardiac surgery with cardiopulmonary bypass, the heart-lung machine is primed with 1300 ml of fluid. We assessed postoperative coagulation and platelet function in patients randomized to two different priming solutions, one colloid-based (dextran 40) and one crystalloid-based. MATERIALS AND METHODS Eighty-four elective cardiac surgery patients were randomized to either a dextran-based prime or Ringer's acetate with added mannitol. Blood samples were collected before, and 2 and 24 h after cardiopulmonary bypass. Coagulation was assessed by standard coagulation tests and rotational thromboelastometry. Platelet function was assessed with impedance aggregometry. Bleeding volumes and transfusion requirements were recorded. RESULTS Comparing the groups 2 h after bypass, the dextran group showed lower hemoglobin concentration, hematocrit, platelet count, and fibrinogen concentration, and higher INR and aPTT, as well as longer clot formation time (+41 ± 21 % vs. +8 ± 18 %, p < 0.001) and a larger reduction in fibrinogen-dependent clot strength (-37 ± 12 % vs. -7 ± 20 %, p < 0.001). Adenosine diphosphate-dependent platelet activation was reduced in the dextran group but not in the crystalloid group 2 h after bypass (-14 ± 29 % vs. -1 ± 41 %, p = 0.041). No significant between-group differences in hemostatic variables remained after 24 h, and no significant differences in perioperative bleeding volumes, re-explorations for bleeding, or transfusion rates were observed. CONCLUSIONS Compared to a crystalloid solution, a dextran-based prime had measurable negative impact on hemostatic variables but no detectable increase in bleeding volume or transfusion requirements in cardiac surgery patients.
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Affiliation(s)
- Mikael Barbu
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Cardiology, Karlskrona Hospital, Karlskrona, Sweden
| | - Oscar Kolsrud
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Vladimir Radulovic
- Department of Haematology and Coagulation Disorders, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Göran Dellgren
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kerstin Björk
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anders Thorén
- Department of Cardiothoracic Anesthesiology and Intensive Care, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Aldina Pivodic
- APNC Sweden, Gothenburg, Sweden; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Sven-Erik Ricksten
- Department of Cardiothoracic Anesthesiology and Intensive Care, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anders Jeppsson
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden.
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Fibrin clot susceptibility to lysis is impaired after on-pump coronary artery by-pass grafting with tranexamic acid: clinical implications. Blood Coagul Fibrinolysis 2021; 32:29-36. [PMID: 33196514 DOI: 10.1097/mbc.0000000000000980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Coronary artery bypass grafting (CABG) done on-pump may cause a significant blood loss. Low fibrinogen is associated with perioperative bleeding. The influence of cardiopulmonary bypass on fibrin clot properties is poorly investigated. We studied 55 patients with isolated coronary artery disease on aspirin undergoing on-pump CABG with tranexamic acid. Fibrinogen levels, fibrinolytic capacity expressed as clot lysis time (CLT), thrombin generation potential and platelet count were assessed before and after the surgery (prior to admission to the intensive care unit). A postoperative drop in haemoglobin (-30% from baseline), haematocrit (-31% from baseline) and platelet count (-42% from baseline) was observed (all, P < 0.0001). Postoperative fibrinogen level was lower by 57%, compared with preoperative value (1.5 [1.3-1.8] vs. 3.5 [2.8-3.9] g/l, P < 0.0001). Postoperative CLT was longer by 48 min, compared with preoperative (182 [170-218] vs. 134 [122-165] min, P < 0.0001). Thrombin generation was impaired postoperatively: both lag time and time to peak thrombin were prolonged by 44 and 45%, respectively, whereas endogenous thrombin potential and peak thrombin generation decreased by 45 and 78%, respectively (all P < 0.0001). Median postoperative drainage at 12 h was 400 [290-570] ml. Predictors of blood loss at 12 h identified in multivariable linear regression model adjusted for sex and preoperative fibrinogen level were: BMI (b = -23.4, P = 0.048) and postoperative CLT (b = -2.4, P = 0.042). Despite decreased fibrinogen levels after on-pump CABG with tranexamic acid, fibrin clot susceptibility to lysis is impaired, as reflected by prolonged CLT. Postoperative CLT is associated with mediastinal drainage at 12 h.
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Pooria A, Pourya A, Gheini A. Postoperative complications associated with coronary artery bypass graft surgery and their therapeutic interventions. Future Cardiol 2020; 16:481-496. [PMID: 32495650 DOI: 10.2217/fca-2019-0049] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Coronary artery disease is one of the commonest surgery demanding cardiovascular diseases. Coronary artery bypass graft surgery is practiced all over the world for the treatment of coronary artery disease. Systemic trauma during the surgery is associated with a wide range of complications, some of which are fatal. Preoperative risk factors such as age, previous illness and obesity are common predictors of these adverse events. Advances in therapeutic medicine have allowed timely treatment of these adverse events and co-morbidities. This review summarizes some of the most occurring complications associated with coronary artery bypass graft and corresponding treatment options.
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Affiliation(s)
- Ali Pooria
- Department of Cardiology, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Afsoun Pourya
- Student of Research committee, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Gheini
- Department of Cardiology, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
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Waldén K, Shams Hakimi C, Jeppsson A, Karlsson M. Effects of fibrinogen supplementation on clot formation in blood samples from cardiac surgery patients before and after tranexamic acid administration. Transfus Med 2019; 29:319-324. [DOI: 10.1111/tme.12604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 12/31/2022]
Affiliation(s)
- K. Waldén
- Department of Anaesthesia and Intensive CareEastern Hospital Gothenburg Sweden
- Department of Anaesthesia and Intensive CareInstitute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
| | - C. Shams Hakimi
- Department of Molecular and Clinical MedicineInstitute of Medicine, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
| | - A. Jeppsson
- Department of Molecular and Clinical MedicineInstitute of Medicine, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
- Department of Cardiothoracic SurgerySahlgrenska University Hospital Gothenburg Sweden
| | - M. Karlsson
- Department of Molecular and Clinical MedicineInstitute of Medicine, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
- Department of MedicineSkaraborg Hospital Lidköping Sweden
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