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tranexamic acid in cardiac surgery

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https://www.readbyqxmd.com/read/28125808/coagulation-management-in-jersey-calves-an-ex-vivo-study
#1
Sabine Gröning, Judith Maas, Svenja van Geul, Rolf Rossaint, Ulrich Steinseifer, Oliver Grottke
OBJECTIVE: Jersey calves are frequently used as an experimental animal model for in vivo testing of cardiac assist devices or orthopedic implants. In this ex vivo study, we analyzed the coagulation system of the Jersey calves and the potential of human-based coagulation management to circumvent perioperative bleeding complications during surgery. Experimental Procedure: Blood from 7 Jersey calves was subjected to standard laboratory tests and thromboelastometry analysis. An ex vivo model of dilutional coagulopathy was used to study the effects of fibrinogen or prothrombin complex concentrate supplementation...
January 27, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28118792/noteworthy-articles-in-2016-for-the-cardiothoracic-anesthesiologist
#2
Dirk J Varelmann, J Daniel Muehlschlegel
Clinical research and outcome studies dominated the publication spectrum for the cardiothoracic anesthesiologist in 2016. Echocardiography is an important tool in the armamentarium of the cardiothoracic anesthesiologist. Technology is advancing at a fast pace: A new method to quantify the regurgitant volume in mitral regurgitation has been described in an experimental model and been validated in humans. Interesting studies on key elements of our daily practice have been published: Does tranexamic acid decrease the transfusion requirements after cardiac surgery? Are patients with a postoperative cognitive deficit at risk for dementia 7...
January 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28068786/topical-and-low-dose-intravenous-tranexamic-acid-in-cyanotic-cardiac-surgery
#3
Jigar Patel, Mrugesh Prajapati, Hardik Patel, Hemang Gandhi, Shilpa Deodhar, Himani Pandya
Background Coagulopathy is a major problem in surgery for cyanotic congenital heart disease. Tranexamic acid has been used both topically and systemically and plays a vital role in pediatric cardiac surgery by reducing blood loss and blood product requirement. We aimed to determine the anti-fibrinolytic effectiveness of low-dose systemic or topical tranexamic acid or a combination of both. Methods Seventy-five patients were divided in 3 groups of 25. Group A patients were given tranexamic acid 20 mg kg(-1) intravenously after sternotomy and 20 mg kg(-1) after heparin reversal...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/27988092/safety-of-tranexamic-acid-in-pediatric-cardiac-surgery-a-nationwide-database-study
#4
Takuma Maeda, Yusuke Sasabuchi, Hiroki Matsui, Yoshihiko Ohnishi, Shigeki Miyata, Hideo Yasunaga
OBJECTIVES: The present study aimed to examine the association between tranexamic acid (TXA) use and adverse effects (seizures, thromboembolism, and renal dysfunction) in a pediatric cardiac surgery population using a national inpatient database in Japan. The authors also assessed the association between TXA use and other clinical outcomes (length of hospital stay and in-hospital mortality). DESIGN: A nationwide, retrospective cohort study using propensity score analyses...
October 4, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27956673/prospective-observational-study-of-the-effect-of-dual-antiplatelet-therapy-with-tranexamic-acid-treatment-on-platelet-function-and-bleeding-after-cardiac-surgery
#5
J Amour, M Garnier, J Szymezak, Y Le Manach, D Helley, S Bertil, A Ouattara, B Riou, P Gaussem
BACKGROUND: The bleeding impact of dual antiplatelet therapy (DAPT), aspirin and clopidogrel, maintained until coronary artery bypass graft surgery (CABG), is still a matter of debate. The lack of preoperative antiplatelet activity measurement and heterogeneity of antifibrinolytic protocols in prior studies make the conclusions questionable. The aim of this prospective study was to determine, after preoperative antiplatelet activity measurement, if the maintenance of DAPT until CABG increases bleeding in patients treated with tranexamic acid (TA)...
December 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27940453/perioperative-management-of-the-bleeding-patient
#6
K Ghadimi, J H Levy, I J Welsby
Perioperative bleeding remains a major complication during and after surgery, resulting in increased morbidity and mortality. The principal causes of non-vascular sources of haemostatic perioperative bleeding are a preexisting undetected bleeding disorder, the nature of the operation itself, or acquired coagulation abnormalities secondary to haemorrhage, haemodilution, or haemostatic factor consumption. In the bleeding patient, standard therapeutic approaches include allogeneic blood product administration, concomitant pharmacologic agents, and increasing application of purified and recombinant haemostatic factors...
December 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27913736/additional-effects-of-topical-tranexamic-acid-in-on-pump-cardiac-surgery
#7
RANDOMIZED CONTROLLED TRIAL
Noppon Taksaudom, Sophon Siwachat, Apichat Tantraworasin
Objective Postoperative bleeding after cardiac surgery is commonly associated with hyperfibrinolysis. This study was designed to evaluate the efficacy of topical tranexamic acid in addition to intravenous tranexamic acid in reducing bleeding in cardiac surgery cases. Methods From July 1, 2014 to September 30, 2015, 82 patients who underwent elective on-pump cardiac surgery were randomized into a tranexamic acid group and a placebo group. In the tranexamic acid group, 1 g of tranexamic acid dissolved in 100 mL of normal saline solution was poured into the pericardium during sternal closure; the placebo group had 100 mL of saline only...
January 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/27871586/comparative-effectiveness-of-epsilon-aminocaproic-acid-and-tranexamic-acid-on-postoperative-bleeding-following-cardiac-surgery-during-a-national-medication-shortage
#8
Kevin P Blaine, Christopher Press, Ken Lau, Jan Sliwa, Vidya K Rao, Charles Hill
STUDY OBJECTIVE: The aim of this study was to compare the effectiveness of epsilon-aminocaproic acid (εACA) and tranexamic acid (TXA) in contemporary clinical practice during a national medication shortage. DESIGN: A retrospective cohort study. SETTING: The study was performed in all consecutive cardiac surgery patients (n=128) admitted to the cardiac-surgical intensive care unit after surgery at a single academic center immediately before and during a national medication shortage...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27774838/tranexamic-acid-in-patients-undergoing-coronary-artery-surgery
#9
RANDOMIZED CONTROLLED TRIAL
Paul S Myles, Julian A Smith, Andrew Forbes, Brendan Silbert, Mohandas Jayarajah, Thomas Painter, D James Cooper, Silvana Marasco, John McNeil, Jean S Bussières, Shay McGuinness, Kelly Byrne, Matthew T V Chan, Giovanni Landoni, Sophie Wallace
Background Tranexamic acid reduces the risk of bleeding among patients undergoing cardiac surgery, but it is unclear whether this leads to improved outcomes. Furthermore, there are concerns that tranexamic acid may have prothrombotic and proconvulsant effects. Methods In a trial with a 2-by-2 factorial design, we randomly assigned patients who were scheduled to undergo coronary-artery surgery and were at risk for perioperative complications to receive aspirin or placebo and tranexamic acid or placebo. The results of the tranexamic acid comparison are reported here...
12, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/27607599/temporal-changes-in-clot-lysis-and-clot-stability-following-tranexamic-acid-in-cardiac-surgery
#10
Mariann Tang, Per Wierup, Catherine J Rea, Jrgen Ingerslev, Vibeke E Hjortdal, Benny Srensen
Cardiac surgery induces a multifactorial coagulopathy. Regular use of tranexamic acid (TXA) is becoming standard of care. Clinical challenges include selecting optimal dosing regimen and balancing the benefit versus risk of additional dosing with antifibrinolytics. The objective was to evaluate the effect of TXA by assessing kinetic properties of plasma clot formation, clot stability, and clot fibrinolysis. The study was a prospective case follow-up of 28 patients undergoing cardiac surgery (mean age 63.9 years, 29% women)...
September 2, 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/27388281/tranexamic-acid-decreases-the-magnitude-of-platelet-dysfunction-in-aspirin-free-patients-undergoing-cardiac-surgery-with-cardiopulmonary-bypass-a-pilot-study
#11
Caroline Van Aelbrouck, Sebastian Jorquera-Vasquez, Ingrid Beukinga, Olivier Pradier, Brigitte Ickx, Luc Barvais, Luc Van Obbergh, David Faraoni
This study sought to compare the effect of tranexamic acid (TXA) administration on cardiopulmonary bypass-induced platelet dysfunction in patients who received preoperative aspirin or not. We performed a prospective, randomized, double-blind pilot study, including patients undergoing elective cardiac surgery with cardiopulmonary bypass (CPB). Patients without aspirin interruption were enrolled in the 'group ASPIRIN' (n = 18) and those who had never been treated with aspirin were included in the 'group NO ASPIRIN' (n = 10)...
December 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/27330150/effectiveness-of-pericardial-lavage-with-or-without-tranexamic-acid-in-cardiac-surgery-patients-receiving-intravenous-tranexamic-acid-a-randomized-controlled-trial
#12
Dorien M Kimenai, Bastiaan M Gerritse, Cees Lucas, Peter M Rosseel, Mohamed Bentala, Paul van Hattum, Nardo J M van der Meer, Thierry V Scohy
OBJECTIVES: Pericardial lavage with saline, with or without tranexamic acid (TA), is still not evidence-based within current clinical practice as a part of a blood conservation strategy in cardiac surgery patients receiving intravenous TA administration. The objective was to determine whether intravenous TA combined with pericardial lavage with saline, with or without TA, reduces blood loss by 25% after cardiac surgery measured in the first 12 h postoperatively. METHODS: In this single-centre, randomized controlled, multiple-armed, parallel study, individual patients were randomly assigned to receive either topical administration of 2 g TA diluted in 200 ml of saline (TA group), 200 ml of saline (placebo group) or no topical administration at all (control group)...
December 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27117753/desmopressin-after-cardiac-surgery-in-bleeding-patients-a-multicenter-randomized-trial
#13
RANDOMIZED CONTROLLED TRIAL
E Bignami, M Cattaneo, G Crescenzi, M Ranucci, F Guarracino, C Cariello, R Baldassarri, G Isgrò, E Baryshnikova, G Fano, A Franco, C Gerli, M Crivellari, A Zangrillo, G Landoni
BACKGROUND: Previous studies showed that desmopressin decreases post-operative blood loss in patients undergoing cardiac surgery. These studies were small and never studied the effect of desmopressin in patients with active bleeding. Objective of the study was to determine whether desmopressin reduces red blood cells transfusion requirements in patients with active bleeding after cardiac surgery who had been pre-treated with tranexamic acid. METHODS: This multicenter, randomized, double-blind, placebo-controlled, parallel-group study randomized elective patients with bleeding after cardiac surgery despite pre-treatment with tranexamic acid, to receive placebo (saline solution) or a single administration of desmopressin (0...
August 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27112920/major-transfusions-remain-frequent-despite-the-generalized-use-of-tranexamic-acid-an-audit-of-3322-patients-undergoing-cardiac-surgery
#14
Louis-Mathieu Stevens, Nicolas Noiseux, Ignacio Prieto, Jean-François Hardy
BACKGROUND: Aprotinin has been reapproved for use in Europe and in Canada. We sought to determine if its reintroduction was still pertinent given the widespread administration of tranexamic acid, another antifibrinolytic shown to reduce bleeding and transfusions. STUDY DESIGN AND METHODS: After institutional review board approval, we examined the cardiac surgery database (2012-2015; 3322 patients). Major transfusion was defined as 4 or more red blood cell units...
July 2016: Transfusion
https://www.readbyqxmd.com/read/26933848/stopping-vs-continuing-aspirin-before-coronary-artery-surgery
#15
RANDOMIZED CONTROLLED TRIAL
Paul S Myles, Julian A Smith, Andrew Forbes, Brendan Silbert, Mohandas Jayarajah, Thomas Painter, D James Cooper, Silvana Marasco, John McNeil, Jean S Bussières, Sophie Wallace
BACKGROUND: Most patients with coronary artery disease receive aspirin for primary or secondary prevention of myocardial infarction, stroke, and death. Aspirin poses a risk of bleeding in patients undergoing surgery, but it is unclear whether aspirin should be stopped before coronary artery surgery. METHODS: We used a 2-by-2 factorial trial design to randomly assign patients who were scheduled to undergo coronary artery surgery and were at risk for perioperative complications to receive aspirin or placebo and tranexamic acid or placebo...
February 25, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/26796915/hemostatic-alterations-during-coronary-artery-bypass-grafting
#16
Chantal L I Gielen, Anneke Brand, Waander L van Heerde, Theo Stijnen, Robert J M Klautz, Jeroen Eikenboom
INTRODUCTION: The origination of blood loss after cardiac surgery is not fully explained, but is related to operation trauma and use of cardiopulmonary bypass (CPB). However, the extent of their contribution is incompletely known and might differ between distinct operation procedures. MATERIALS AND METHODS: Three groups of CABG procedures were studied: 1) off-pump coronary artery bypass surgery (OPCAB, n=11) without CPB, 2) CABG with use of CPB (CABG, n=11) and 3) CABG with use of CPB combined with aortic valve replacement (AVR, n=11)...
April 2016: Thrombosis Research
https://www.readbyqxmd.com/read/26620803/a-systematic-review-and-meta-analysis-of-the-use-of-antifibrinolytic-agents-in-total-hip-arthroplasty
#17
REVIEW
Fei Huang, Yunfeng Wu, Zongsheng Yin, Guangwen Ma, Jun Chang
BACKGROUND: Antifibrinolytic agents such as tranexamic acid (TXA), epsilon aminocaproic acid (EACA), and aprotinin are widely used to reduce bleeding and the need for transfusion in cardiac, orthopaedic, and hepatic surgery. We aimed to assess the efficacy and safety of antifibrinolytic agents in total hip arthroplasty (THA). METHODS: A systematic literature search was performed using MEDLINE, PubMed, EMBASE, and Cochrane databases, as well as the reference lists of relevant articles...
November 2015: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/26569753/92-tranexamic-acid-and-post-operative-seizures-in-patients-who-underwent-cardiac-surgery
#18
Chan Justin, Angela Jerath, Humara Poonawala, Marcin Wasowicz
No abstract text is available yet for this article.
December 2015: Critical Care Medicine
https://www.readbyqxmd.com/read/26523960/left-ventricle-thrombus-after-tranexamic-acid-for-spine-surgery-in-an-hiv-positive-patient
#19
Neal Stuart Gerstein, Janet Kathryn Brierley, Matthew Douglas Culling
BACKGROUND CONTEXT: Our case highlights the underappreciated thrombotic risks of tranexamic acid (TXA) use in non-cardiac surgery and emphasizes the need to elucidate these risks with appropriate clinical trials. PURPOSE: The use of TXA in non-cardiac surgery has significantly expanded in the past 5 years, especially after the 2010 publication of the CRASH-2 Trial. We submit a case with the intent to highlight the thrombotic risk of TXA use during non-cardiac surgery and discuss the need for careful risk stratification before the use of TXA in this context...
February 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/26348901/giant-somatosensory-evoked-potentials-coincident-with-epileptiform-discharges-in-acutely-comatose-patients
#20
David A Houlden, Mark I Boulos, Brian J Murray, Loretta Norton, G Bryan Young
BACKGROUND: The amplitude of the cortically generated somatosensory evoked potential (SSEP) is used to predict outcome in comatose patients. The relationship between epileptiform discharges and SSEP amplitude has not been elucidated in those patients. METHODS: Bilateral median nerve SSEP and electroencephalograph (EEG) studies were performed in a comatose patient (patient 1) 1 day after cardiac surgery and repeated 4 days later. He had tranexamic acid administered before and during surgery...
September 2015: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
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