1
|
Rajsic S, Breitkopf R, Treml B, Jadzic D, Innerhofer N, Eckhardt C, Oberleitner C, Nawabi F, Bukumiric Z. Anti-Xa-guided Anticoagulation With Unfractionated Heparin and Thrombosis During Extracorporeal Membrane Oxygenation Support: A Systematic Review and Meta-analysis. J Cardiothorac Vasc Anesth 2024; 38:1662-1672. [PMID: 38839489 DOI: 10.1053/j.jvca.2024.03.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 06/07/2024]
Abstract
OBJECTIVE The initiation of extracorporeal membrane oxygenation (ECMO) triggers complex coagulation processes necessitating systemic anticoagulation. Therefore, anticoagulation monitoring is crucial to avoid adverse events such as thrombosis and hemorrhage. The main aim of this work was to analyze the association between anti-Xa levels and thrombosis occurrence during ECMO support. DESIGN Systematic literature review and meta-analysis (Scopus and PubMed, up to July 29, 2023). SETTING All retrospective and prospective studies. PARTICIPANTS Patients receiving ECMO support. INTERVENTION Anticoagulation monitoring during ECMO support. MEASUREMENTS AND MAIN RESULTS A total of 16 articles with 1,968 patients were included in the review and 7 studies in the meta-analysis (n = 374). Patients with thrombosis had significantly lower mean anti-Xa values (standardized mean difference -0.36, 95% confidence interval [CI] -0.62 to -0.11, p < 0.01). Furthermore, a positive correlation was observed between unfractionated heparin infusion and anti-Xa levels (pooled estimate of correlation coefficients 0.31, 95% CI 0.19 to 0.43, p < 0.001). The most common adverse events were major bleeding (42%) and any kind of hemorrhage (36%), followed by thromboembolic events (30%) and circuit or oxygenator membrane thrombosis (19%). More than half of the patients did not survive to discharge (52%). CONCLUSIONS This work revealed significantly lower levels of anti-Xa in patients experiencing thromboembolic events and a positive correlation between anti-Xa and unfractionated heparin infusion. Considering the contemplative limitations of conventional monitoring tools, further research on the role of anti-Xa is warranted. New trials should be encouraged to confirm these findings and determine the most suitable monitoring strategy for patients receiving ECMO support.
Collapse
Affiliation(s)
- Sasa Rajsic
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria.
| | - Robert Breitkopf
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Benedikt Treml
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Dragana Jadzic
- Anesthesia and Intensive Care Department, Pain Therapy Service, Cagliari University, Cagliari, Italy
| | - Nicole Innerhofer
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Christine Eckhardt
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Christoph Oberleitner
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Fariha Nawabi
- Department of Anesthesiology and Intensive Care Medicine, Medical University Innsbruck, 6020, Innsbruck, Austria
| | - Zoran Bukumiric
- Institute of Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, 11000, Belgrade, Serbia
| |
Collapse
|
2
|
Tinchon A, Brait J, Klee S, Graichen U, Baumgartner C, Friedrich O, Freydl E, Oberndorfer S, Struhal W, Hain B, Waiß C, Stoiber D. How enoxaparin underdosing and sex contribute to achieving therapeutic anti-Xa levels. Front Pharmacol 2024; 15:1377232. [PMID: 39070792 PMCID: PMC11272590 DOI: 10.3389/fphar.2024.1377232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 06/17/2024] [Indexed: 07/30/2024] Open
Abstract
Introduction Anti-Xa serves as a clinical surrogate for assessing the efficacy and bleeding risk in patients treated with enoxaparin for thromboembolic events. Evidence from the literature and empirical observations suggest that patients are underdosed in clinical practice to avoid bleeding complications. This study aimed to investigate such underdosing of enoxaparin and its potential impact on achieving therapeutic anti-Xa levels. Methods This multicentric, retrospective, observational study included patients with acute ischemic stroke due to atrial fibrillation. All patients received enoxaparin in the therapeutic setting with subsequent anti-Xa measurements. The one-sample, one-tailed Wilcoxon signed-rank test was used to identify a significant difference between the doses administered and the recommended daily dose. Logistic regression model analysis was performed to identify additional predictors affecting achievement of the therapeutic anti-Xa target range. Stepwise forward-backward selection with Akaike's information criterion as metric was applied to refine the logistic regression model. Results A total of 145 patients from the university hospitals of St. Pölten and Tulln in Lower Austria were included. The median daily enoxaparin dose administered was 1.23 mg/kg, resulting in an overall target range achievement rate of 66%. As compared to recommended therapeutic doses, significant underdosing of enoxaparin was evident in both participating centers (p < 0.001). The calculated threshold dose to achieve the therapeutic target range with a 90% probability was 1.5 mg/kg enoxaparin daily. Female sex was found to be a strong independent predictor of achieving a therapeutic target range (OR 9.44; 95% CI 3.40-30.05, p < 0.001). Conclusion Despite the underdosing observed in both centers, therapeutic anti-Xa levels were achieved with lower than recommended doses of enoxaparin, and women required even lower doses than men. These findings warrant further confirmation by prospective studies.
Collapse
Affiliation(s)
- Alexander Tinchon
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner Institute of Clinical Neurology and Neuropsychology, University Hospital St. Pölten, St. Pölten, Austria
| | - Joana Brait
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital St. Pölten, St. Pölten, Austria
| | - Sascha Klee
- Karl Landsteiner University of Health Sciences, Department of General Health Studies, Division of Biostatistics and Data Science, Krems, Austria
| | - Uwe Graichen
- Karl Landsteiner University of Health Sciences, Department of General Health Studies, Division of Biostatistics and Data Science, Krems, Austria
| | - Christian Baumgartner
- Karl Landsteiner University of Health Sciences, Institute of Laboratory Medicine (Central Laboratory), University Hospital St. Pölten, St. Pölten, Austria
| | | | - Elisabeth Freydl
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner Institute of Clinical Neurology and Neuropsychology, University Hospital St. Pölten, St. Pölten, Austria
| | - Stefan Oberndorfer
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner Institute of Clinical Neurology and Neuropsychology, University Hospital St. Pölten, St. Pölten, Austria
| | - Walter Struhal
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital Tulln, Tulln, Austria
| | - Barbara Hain
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital Tulln, Tulln, Austria
| | - Christoph Waiß
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Neurology, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner Institute of Clinical Neurology and Neuropsychology, University Hospital St. Pölten, St. Pölten, Austria
| | - Dagmar Stoiber
- Karl Landsteiner University of Health Sciences, Department of Pharmacology, Physiology and Microbiology, Division of Pharmacology, Krems, Austria
| |
Collapse
|
3
|
Du Z, Zhu T, Peng P, Liu X, Fu L, Sun Z. A retrospective study of the management and outcomes of pregnancies with inherited antithrombin deficiency. J Obstet Gynaecol Res 2024. [PMID: 38960394 DOI: 10.1111/jog.16005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/10/2024] [Indexed: 07/05/2024]
Abstract
INTRODUCTION Antithrombin (AT) deficiency is a rare but highly thrombogenic inherited thrombophilia. Its association with adverse pregnancy outcomes (APO) is undefined. There is limited guidance on managing AT deficiency in pregnancy. Some significant issues remain controversial, including risk assessment for prophylactic anticoagulation, anticoagulant therapy, and monitoring. Our goal was to examine if the antepartum management of patients with AT deficiency affected their pregnancy outcomes. MATERIALS AND METHODS This retrospective, single-center observational study included pregnant women with inherited AT deficiency in Peking Union Medical College Hospital between 2013 and 2024. RESULTS Seventeen pregnancies in 6 women with AT deficiency were identified. A total of 7 pregnancies received adjusted-dose low-molecular-weight heparin (LMWH) and were monitored by anti-Xa level, AT activity, and D-dimer. There were 5 live births (all received LMWH), 7 second-trimester abortions (1 received LMWH), and 5 early pregnancy losses (1 received LMWH). There were 5 abruptio placentae events (3 received LMWH) and 7 thrombotic events (2 received LMWH). CONCLUSIONS AT deficiency is at least an important partial factor contributing to APO. It is suggested to make a full assessment of AT patients both for venous thrombus embolism and APO risk. We observed a high prevalence of heparin resistance and a positive correlation between adequate anticoagulation and pregnancy outcome based on tight monitoring with anti-Xa level and timely adjustment of the LMWH dosage.
Collapse
Affiliation(s)
- Zhe Du
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Tienan Zhu
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Ping Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Xinyan Liu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Linru Fu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Zhijing Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| |
Collapse
|
4
|
Papazachariou A, Papadakis JA, Malikides V, Nikiforou A, Alexiadou D, Malikides O, Ioannou P, Ximeri M, Kofteridis DP. Monitoring anti-Xa levels in elderly medical patients undergoing thromboprophylaxis: A prospective cohort study. Geriatr Gerontol Int 2024; 24:587-594. [PMID: 38705573 DOI: 10.1111/ggi.14891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/07/2024]
Abstract
INTRODUCTION Given the rising incidence of venous thromboembolism (VTE) and insufficient thromboprophylaxis dosing evidence in certain patients, the precise monitoring of anti-Xa (aFXa) levels is crucial. The aim of this study is to investigate the achievement of prophylactic aFXa levels in medical inpatients who were receiving parenteral anticoagulant and to evaluate the impact of various factors on aFXa levels. METHODS This is a single-center observational cohort study conducted on patients admitted to the Department of Internal Medicine at the University Hospital of Heraklion, Greece, from March to August 2023. These individuals received low-molecular-weight heparins thromboprophylaxis owing to an increased risk of VTE. Data regarding demographics, past medical history, and somatometric and laboratory findings were recorded. The established range for peak prophylactic aFXa levels was defined as 0.2-0.5 IU/mL. RESULTS In this study, we enrolled 150 individuals [91 (60.7%) women] with a mean age of 80.0 ± 14.1 years. Sixty-two (41.4%) patients exhibited non-prophylactic peak aFXa levels. Supratherapeutic levels were observed in all underweight patients and subtherapeutic levels in 12 of 13 obese patients in class II and III. A multivariate linear regression analysis revealed that body weight, cancer, and the Charlson Comorbidity Index (CCI) were independent factors influencing aFXa levels. CONCLUSIONS Our study reveals a substantial portion of medical elderly inpatients on thromboprophylaxis with non-prophylactic aFXa levels, with a notable prevalence among underweight and severely obese patients. Body weight, cancer, and CCI were identified as independent factors influencing aFXa levels, advocating for tailored thromboprophylaxis strategies. Further research is warranted to validate personalized dosing approaches and to enhance clinical decision-making. Geriatr Gerontol Int 2024; 24: 587-594.
Collapse
Affiliation(s)
- Andria Papazachariou
- Department of Internal Medicine, University Hospital of Heraklion, Heraklion, Greece
| | - John A Papadakis
- Department of Internal Medicine, University Hospital of Heraklion, Heraklion, Greece
| | - Vironas Malikides
- Department of Internal Medicine, University Hospital of Heraklion, Heraklion, Greece
| | - Antigoni Nikiforou
- Department of Internal Medicine, University Hospital of Heraklion, Heraklion, Greece
| | - Dimitra Alexiadou
- Department of Hematology, University Hospital of Heraklion, Heraklion, Greece
| | - Onoufrios Malikides
- Department of Cardiology, University Hospital of Heraklion, Heraklion, Greece
| | - Petros Ioannou
- Department of Internal Medicine, University Hospital of Heraklion, Heraklion, Greece
| | - Maria Ximeri
- Department of Hematology, University Hospital of Heraklion, Heraklion, Greece
| | | |
Collapse
|
5
|
Bösch J, Bachler M, Fries D. Thrombosis prophylaxis following trauma. Curr Opin Anaesthesiol 2024; 37:139-143. [PMID: 38390905 DOI: 10.1097/aco.0000000000001351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
PURPOSE OF REVIEW This review explores the persistent occurrence of venous thromboembolic events (VTE) in major trauma patients despite standard thrombosis prophylaxis with low-molecular-weight heparin (LMWH) or unfractionated heparin (UFH). It investigates the inadequacies of standard pharmacologic prophylaxis and proposes alternative approaches not covered in current trauma guidelines. RECENT FINDINGS Recent studies highlight the effectiveness of monitoring and adjusting subcutaneous LMWH doses based on anti-Xa levels for the purpose of reducing VTE in trauma patients. The need for dose adaptation arises due to factors like fluctuating organ function, varying antithrombin levels, interaction with plasma proteins, and altered bioavailability influenced by oedema or vasopressor use. Additionally, promising alternatives such as intravenous LMWH, UFH, and argatroban have shown success in intensive care settings. SUMMARY The standard dosing of subcutaneous LMWH is often insufficient for effective thrombosis prophylaxis in trauma patients. A more personalised approach, adjusting doses based on specific effect levels like anti-Xa or choosing an alternative mode of anticoagulation, could reduce the risk of insufficient prophylaxis and subsequent VTE.
Collapse
Affiliation(s)
- Johannes Bösch
- Department for Anaesthesiology and Intensive Care Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Mirjam Bachler
- Institute for Sports Medicine, Alpine Medicine and Health Tourism, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
| | - Dietmar Fries
- Department for Anaesthesiology and Intensive Care Medicine, Medical University of Innsbruck, Innsbruck, Austria
| |
Collapse
|
6
|
Saunders JA, Vazquez SR, Hill JA, Witt DM. Clinical outcomes associated with anti-Xa-monitored enoxaparin for venous thromboembolism prophylaxis. Pharmacotherapy 2024; 44:224-230. [PMID: 38088033 DOI: 10.1002/phar.2900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 12/27/2023]
Abstract
STUDY OBJECTIVE The objective of the study was to assess clinical outcomes (composite of any venous thromboembolism [VTE], any bleeding, and mortality) associated with anti-Xa monitoring in the 30 days following enoxaparin initiation for VTE prophylaxis. DESIGN Retrospective cohort study. SETTING Hospital within an academic healthcare system. PATIENTS Propensity score-matched hospitalized adults receiving enoxaparin for VTE prophylaxis. INTERVENTION Low-molecular-weight heparin anti-Xa monitoring. MEASUREMENTS AND MAIN RESULTS During the 13-month study period, a total of 6611 patients received enoxaparin for VTE prophylaxis, 301 in the anti-Xa monitored group and 6310 in the unmonitored group (4.6% received monitoring). The mean age was 52.9 years and 52% of patients were male. The mean body mass index was 31 kg/m2 and the mean creatinine clearance was 109 mL/min. Twenty percent of patients had active cancer. The most common indication for enoxaparin prophylaxis was hospitalization for medical illness (52%) followed by nonorthopedic surgery (37%). The adjusted odds ratio for the primary outcome comparing monitored to unmonitored patients was 1.26 (95% confidence interval, 0.75-2.11). None of the between-group differences in the individual components of the composite outcome were statistically significant. CONCLUSIONS Thirty-day clinical outcomes in patients receiving enoxaparin for VTE prophylaxis were not improved by anti-Xa monitoring. Our results support current evidence-based guideline recommendations against anti-Xa monitoring for patients receiving enoxaparin for VTE prophylaxis.
Collapse
Affiliation(s)
- John A Saunders
- Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City, Utah, USA
- Division of Epidemiology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Sara R Vazquez
- Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City, Utah, USA
- University of Utah Health Thrombosis Service, Murray, Utah, USA
| | - Joseph A Hill
- Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City, Utah, USA
| | - Daniel M Witt
- Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City, Utah, USA
- University of Utah Health Thrombosis Service, Murray, Utah, USA
| |
Collapse
|
7
|
Chanas T, Gibson G, Langenstroer E, Herrmann DJ, Carver TW, Alexander K, Chui SHJ, Rein L, Ha M, Maynard KM, Bamberg K, O'Keefe M, O'Brien M, Gonzalez MC, Hobbs B, Pajoumand M, Peppard WJ. Multicenter study evaluating target attainment of anti-Factor Xa levels using various enoxaparin prophylactic dosing practices in adult trauma patients. Pharmacotherapy 2024; 44:258-267. [PMID: 38148134 DOI: 10.1002/phar.2904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/08/2023] [Accepted: 12/05/2023] [Indexed: 12/28/2023]
Abstract
STUDY OBJECTIVE Enoxaparin is standard of care for venous thromboembolism (VTE) prophylaxis in adult trauma patients, but fixed-dose protocols are suboptimal. Dosing based on body mass index (BMI) or total body weight (TBW) improves target prophylactic anti-Xa level attainment and reduces VTE rates. A novel strategy using estimated blood volume (EBV) may be more effective based on results of a single-center study. This study compared BMI-, TBW-, EBV-based, and hybrid enoxaparin dosing strategies at achieving target prophylactic anti-Factor Xa (anti-Xa) levels in trauma patients. DESIGN Multicenter, retrospective review. DATA SOURCE Electronic health records from participating institutions. PATIENTS Adult trauma patients who received enoxaparin twice daily for VTE prophylaxis and had at least one appropriately timed anti-Xa level (collected 3 to 6 hours after the previous dose after three consecutive doses) from January 2017 through December 2020. Patients were excluded if the hospital-specific dosing protocol was not followed or if they had thermal burns with > 20% body surface area involvement. INTERVENTION Dosing strategy used to determine initial prophylactic dose of enoxaparin. MEASUREMENTS The primary end point was percentage of patients with peak anti-Xa levels within the target prophylactic range (0.2-0.4 units/mL). MAIN RESULTS Nine hospitals enrolled 742 unique patients. The most common dosing strategy was based on BMI (43.0%), followed by EBV (29.0%). Patients dosed using EBV had the highest percentage of target anti-Xa levels (72.1%). Multiple logistic regression demonstrated EBV-based dosing was significantly more likely to yield anti-Xa levels at or above target compared to BMI-based dosing (adjusted odds ratio (aOR) 3.59, 95% confidence interval (CI) 2.29-5.62, p < 0.001). EBV-based dosing was also more likely than hybrid dosing to yield an anti-Xa level at or above target (aOR 2.30, 95% CI 1.33-3.98, p = 0.003). Other pairwise comparisons between dosing strategy groups were nonsignificant. CONCLUSIONS An EBV-based dosing strategy was associated with higher odds of achieving anti-Xa level within target range for enoxaparin VTE prophylaxis compared to BMI-based dosing and may be a preferred method for VTE prophylaxis in adult trauma patients.
Collapse
Affiliation(s)
- Tyler Chanas
- ECU Health Medical Center, Greenville, North Carolina, USA
| | | | | | - David J Herrmann
- Froedtert & The Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Thomas W Carver
- Froedtert & The Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Kaitlin Alexander
- University of Florida College of Pharmacy, Gainesville, Florida, USA
| | | | - Lisa Rein
- Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Michael Ha
- UMass Memorial Medical Center, Worcester, Massachusetts, USA
| | - Kaylee M Maynard
- University of Rochester Medical Center, Rochester, New York, USA
| | | | - Mary O'Keefe
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Marisa O'Brien
- UMass Memorial Medical Center, Worcester, Massachusetts, USA
| | | | - Brandon Hobbs
- Orlando Regional Medical Center, Orlando, Florida, USA
| | | | - William J Peppard
- Froedtert & The Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| |
Collapse
|
8
|
de Maat MMR, van Leeuwen HJ, Roovers L, Ahlers SJGM, Lambers J, Hovens MMC. Large variation in anti-factor Xa levels with nadroparin as thromboprophylaxis in COVID-19 and non-COVID-19 critically ill patients. BMC Pharmacol Toxicol 2024; 25:16. [PMID: 38321487 PMCID: PMC10848501 DOI: 10.1186/s40360-024-00733-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 01/12/2024] [Indexed: 02/08/2024] Open
Abstract
PURPOSE Critically ill COVID-19 and non-COVID-19 patients receive thromboprophylaxis with the LMWH nadroparin. Whether a standard dosage is adequate in attaining the target anti-FXa levels (0.20-0.50 IU/ml) in these groups is unknown. METHODS This study was a prospective, observational study in the ICU of a large general teaching hospital in the Netherlands. COVID-19 and non-COVID-19 patients admitted to the ICU who received LMWH in a prophylactic dosage of 2850 IU, 5700 IU or 11400 IU subcutaneously were eligible for the study. Anti-FXa levels were determined 4 h after administration. Relevant laboratory parameters, prespecified co-variates and clinical data were extracted from the electronic health record system. The primary goal was to evaluate anti-FXa levels in critically ill patients on a prophylactic dosage of nadroparin. The second goal was to investigate whether covariates had an influence on anti-FXa levels. RESULTS A total of 62 patients were included in the analysis. In the COVID-19 group and non-COVID-19 group, 29 (96%) and 12 patients (38%) reached anti-FXa levels above 0.20 IU/ml, respectively. In the non-COVID-19 group, 63% of the patients had anti-FXA levels below the target range. When adjusted for nadroparin dosage a significant relation was found between body weight and the anti-FXa level (p = 0.013). CONCLUSION A standard nadroparin dosage of 2850 IU sc in the critically ill patient is not sufficient to attain target anti-FXa levels in the majority of the studied patient group. We suggest a standard higher dosage in combination with body-weight dependent dosing as it leads to better exposure to nadroparin. CLINICAL TRIALS REGISTRATION Retrospectively registered, ClinicalTrials.gov ID NTC 05926518 g, date of registration 06/01/23, unique ID 2020/1725.
Collapse
Affiliation(s)
- Monique M R de Maat
- Department of Clinical Pharmacy, Rijnstate Hospital, Arnhem, The Netherlands.
| | - Henk J van Leeuwen
- Department of Internal Medicine and Intensive Care, Rijnstate Hospital, Arnhem, The Netherlands
| | - Lian Roovers
- Department of Epidemiology, Rijnstate Hospital, Arnhem, The Netherlands
| | - Sabine J G M Ahlers
- Department of Clinical Pharmacy, Rijnstate Hospital, Arnhem, The Netherlands
| | - Jolanda Lambers
- Department of Clinical Chemistry and Hematology Laboratory, Rijnstate Hospital, Arnhem, The Netherlands
| | - Marcel M C Hovens
- Department of Internal Medicine, Rijnstate Hospital, Arnhem, The Netherlands
| |
Collapse
|
9
|
Awan AR, Ahmad A, Daniyal M, Khan MMH, Saeed SJ, Siddiqui MB, Hakeem S, Shahab A, Ali SH, Siddiqi AK. Efficacy and Safety of Rivaroxaban Versus Enoxaparin in Prevention of Recurrence of Venous Thrombo-Embolism Events in Cancer Patients: A Meta-Analysis. Clin Appl Thromb Hemost 2024; 30:10760296241261364. [PMID: 38870350 PMCID: PMC11179539 DOI: 10.1177/10760296241261364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/07/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
OBJECTIVE To examine the effectiveness of rivaroxaban compared to enoxaparin in patients diagnosed with cancer and venous thromboembolism. METHODS A search of Pub Med, Scopus, and Google Scholar, from inception through April 2023 was conducted. Articles comparing rivaroxaban with enoxaparin in patients with cancer and VTE/PE/DVT were included. Review Manager Version 5.2 was utilised for the analysis of the following outcomes; VTE, PE, DVT, major bleeding, and mortality. RESULTS A total of 8 articles and 2276 patients were included in the final analysis. Pooled analysis showed that rivaroxaban had a statistically insignificant reduced association with VTE occurrence (RR:0.83, 95% CI:0.58-1.18, P:0.3) as well as a statically insignificant reduction in major bleeding (RR:0.79, 95% CI:0.53-1.18, P:0.25). Analysis showcased that there was an insignificant reduction of mortality rivaroxaban as compared to enoxaparin (RR:0.74, 95% CI: 0.46-1.20, P:0.23). CONCLUSION Rivaroxaban can serve as a viable alternative to enoxaparin, with no appreciable drawbacks, for preventing and managing VTE in patients with malignancy.
Collapse
Affiliation(s)
- Abdul Rafeh Awan
- Department of Medicine, Nishtar Medical University, Multan, Pakistan
| | - Abdullah Ahmad
- Combined Military Hospital (CMH) Medical College, Lahore, Punjab
| | - Muhammad Daniyal
- Combined Military Hospital (CMH) Medical College, Lahore, Punjab
| | | | | | | | - Sheraz Hakeem
- Department of Medicine, Aga Khan University, Karachi, Pakistan
| | - Azka Shahab
- Department of Medicine, Bahria University Medical and Dental College, Karachi, Pakistan
| | - Syed Hasham Ali
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Ahmed Kamal Siddiqi
- Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA
| |
Collapse
|
10
|
Xu L, Sun Y, Wang S, Li C, Mao Y. Anti-Xa level monitoring of low-molecular-weight heparin during intermittent venovenous hemofiltration. Ann Hematol 2023:10.1007/s00277-023-05290-7. [PMID: 37395763 DOI: 10.1007/s00277-023-05290-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/20/2023] [Indexed: 07/04/2023]
Abstract
Low-molecular-weight heparin (LMWH) is an anticoagulant used to prevent clotting during blood purification treatments. This study aimed to evaluate the clinical use of the anti-factor Xa level (anti-Xa) for monitoring LMWH anticoagulant levels during intermittent venovenous hemofiltration (IVVHF). This prospective observational study enrolled patients who required IVVHF for renal failure in Beijing Hospital between May 2019 and February 2021. The LMWH anticoagulation was assessed by the coagulation grade of the filter and line. One hundred and ten participants were included. There were 90 patients with a filter and line coagulation grade of ≤ 1 and 20 patients with grade > 1. The anti-Xa level of 0.2 IU/mL was a critical value. The multivariable logistic regression analysis showed that anti-Xa level > 0.2 IU/mL (odd ratio [OR] = 2.263; 95% CI: 1.290-4.871, P = 0.034) and cardiovascular disease (OR = 10.028; 95% CI: 1.204-83.488; P = 0.033) were independently associated with the coagulation grade of the filter and line. Anti-Xa level could monitor LMWH anticoagulation during IVVHF.
Collapse
Affiliation(s)
- Lengnan Xu
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chineses Academy of Medical Sciences, Beijing, People's Republic of China
| | - Ying Sun
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chineses Academy of Medical Sciences, Beijing, People's Republic of China
| | - Songlan Wang
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chineses Academy of Medical Sciences, Beijing, People's Republic of China
| | - Chuanbao Li
- Department of Laboratory Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO. 1 DaHua Road, Dong Dan, Beijing, 100730, People's Republic of China.
| | - Yonghui Mao
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chineses Academy of Medical Sciences, Beijing, People's Republic of China.
| |
Collapse
|
11
|
Lobastov K, Urbanek T, Stepanov E, Lal BK, Marangoni J, Krauss ES, Cronin M, Dengler N, Segal A, Welch HJ, Gianesini S, Chen X, Caprini JA. The Thresholds of Caprini Score Associated With Increased Risk of Venous Thromboembolism Across Different Specialties: A Systematic Review. Ann Surg 2023; 277:929-937. [PMID: 36912040 DOI: 10.1097/sla.0000000000005843] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/18/2023] [Indexed: 03/14/2023]
Abstract
OBJECTIVE Estimation of the specific thresholds of the Caprini risk score (CRS) that are associated with the increased incidence of venous thromboembolism (VTE) across different specialties, including identifying the highest level of risk. BACKGROUND Accurate risk assessment remains an important but often challenging aspect of VTE prophylaxis. One well-established risk assessment model is CRS, which has been validated in thousands of patients from many different medical and surgical specialties. METHODS A search of MEDLINE and the Cochrane Library was performed in March 2022. Manuscripts that reported on (1) patients admitted to medical or surgical departments and (2) had their VTE risk assessed by CRS and (3) reported on the correlation between the score and VTE incidence, were included in the analysis. RESULTS A total of 4562 references were identified, and the full text of 202 papers was assessed for eligibility. The correlation between CRS and VTE incidence was reported in 68 studies that enrolled 4,207,895 patients. In all specialties, a significant increase in VTE incidence was observed in patients with a CRS of ≥5. In most specialties thresholds of ≥7, ≥9, and ≥11 to 12 were associated with dramatically increased incidences of VTE. In COVID-19, cancer, trauma, vascular, general, head and neck, and thoracic surgery patients with ≥9 and ≥11 to 12 scores the VTE incidence was extremely high (ranging from 13% to 47%). CONCLUSION The Caprini score is being used increasingly to predict VTE in many medical and surgical specialties. In most cases, the VTE risk for individual patients increases dramatically at a threshold CRS of 7 to 11.
Collapse
Affiliation(s)
- Kirill Lobastov
- Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - Eugeniy Stepanov
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Brajesh K Lal
- University of Maryland School of Medicine, Baltimore, MD
| | | | - Eugene S Krauss
- Department of Orthopaedic Surgery, Syosset Hospital, Northwell Health, Syosset, NY
| | - MaryAnne Cronin
- Department of Orthopaedic Surgery, Syosset Hospital, Northwell Health, Syosset, NY
| | - Nancy Dengler
- Department of Orthopaedic Surgery, Syosset Hospital, Northwell Health, Syosset, NY
| | - Ayal Segal
- Department of Orthopaedic Surgery, Syosset Hospital, Northwell Health, Syosset, NY
| | - Harold J Welch
- Division of Vascular Surgery, Lahey Hospital and Medical Center, Burlington, MA
| | | | - Xiaolan Chen
- Department of Respiratory and Critical Care Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | | |
Collapse
|
12
|
Tran A, Fernando SM, Gates RS, Gillen JR, Droege ME, Carrier M, Inaba K, Haut ER, Cotton B, Teichman A, Engels PT, Patel RV, Lampron J, Rochwerg B. Efficacy and Safety of Anti-Xa-Guided Versus Fixed Dosing of Low Molecular Weight Heparin for Prevention of Venous Thromboembolism in Trauma Patients: A Systematic Review and Meta-Analysis. Ann Surg 2023; 277:734-741. [PMID: 36413031 DOI: 10.1097/sla.0000000000005754] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE Trauma patients are at high risk of venous thromboembolism (VTE). We summarize the comparative efficacy and safety of anti-Xa-guided versus fixed dosing for low molecular weight heparin (LMWH) for the prevention of VTE in adult trauma patients. METHODS We searched Medline and Embase from inception through June 1, 2022. We included randomized controlled trials or observational studies comparing anti-Xa-guided versus fixed dosing of LMWH for thromboprophylaxis in adult trauma patients. We incorporated primary data from 2 large observational cohorts. We pooled effect estimates using a random-effects model. We assessed risk of bias using the ROBINS-I tool for observational studies and assessed certainty of findings using GRADE methodology. RESULTS We included 15 observational studies involving 10,348 patients. No randomized controlled trials were identified. determined that, compared to fixed LMWH dosing, anti-Xa-guided dosing may reduce deep vein thrombosis [adjusted odds ratio (aOR); 0.52, 95% CI: 0.40-0.69], pulmonary embolism (aOR: 0.48, 95% CI: 0.30-0.78) or any VTE (aOR: 0.54, 95% CI: 0.42-0.69), though all estimates are based on low certainty evidence. There was an uncertain effect on mortality (aOR: 1.06, 95% CI: 0.85-1.32) and bleeding events (aOR: 0.84, 95% CI: 0.50-1.39), limited by serious imprecision. We used several sensitivity and subgroup analyses to confirm the validity of our assumptions. CONCLUSION Anti-Xa-guided dosing may be more effective than fixed dosing for prevention of deep vein thrombosis, pulmonary embolism, and VTE for adult trauma patients. These promising findings justify the need for a high-quality randomized study with the potential to deliver practice changing results.
Collapse
Affiliation(s)
- Alexandre Tran
- Division of General Surgery, Department of Surgery, University of Ottawa, Ottawa, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
- Division of Critical Care, University of Ottawa, Ottawa, Canada
| | - Shannon M Fernando
- Division of Critical Care, University of Ottawa, Ottawa, Canada
- Department of Critical Care, Lakeridge Health Corporation, Oshawa, Ontario, Canada
| | - Rebecca S Gates
- Carilion Clinic, Virginia Tech Carilion School of Medicine, Roanoke, VA
| | - Jacob R Gillen
- Carilion Clinic, Virginia Tech Carilion School of Medicine, Roanoke, VA
| | - Molly E Droege
- Department of Pharmacy Services, UC Health - University of Cincinnati Medical Center, Cincinnati, OH
| | - Marc Carrier
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
- Division of Hematology, Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Kenji Inaba
- Division of Acute Care Surgery, Department of Surgery, University of Southern California, Los Angeles, CA, USA
| | - Elliott R Haut
- Division of Acute Care Surgery, Departments of Surgery, Anesthesiology and Critical Care, Emergency Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Health Policy and Management, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Bryan Cotton
- Red Duke Trauma Institute, Memorial Hermann Hospital, Houston, TX
| | - Amanda Teichman
- Department of Surgery, Robert Wood Johnson University Hospital, New Brunswick, NJ
| | - Paul T Engels
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Division of Critical Care, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Rakesh V Patel
- Division of Critical Care, University of Ottawa, Ottawa, Canada
| | - Jacinthe Lampron
- Division of General Surgery, Department of Surgery, University of Ottawa, Ottawa, Canada
| | - Bram Rochwerg
- Division of General Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
- Division of Critical Care, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
13
|
Sytema JG, Loef BG, Loovers HM, Boer M, Touw DJ, van Hulst M. The right time to measure anti-Xa activity in critical illness: pharmacokinetics of therapeutic dose nadroparin. Res Pract Thromb Haemost 2023; 7:100185. [PMID: 37449055 PMCID: PMC10336191 DOI: 10.1016/j.rpth.2023.100185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 07/18/2023] Open
Abstract
Background Peak anti-Xa activity of low-molecular-weight heparin nadroparin is measured 3 to 5 hours after subcutaneous injection. In critically ill patients, physiological changes and medical therapies may result in peak activities before or after this interval, possibly impacting dosing. Objectives The primary objective was to determine the percentage of critically ill patients with adequately estimated peak activities drawn 3 to 5 hours after subcutaneous administration of a therapeutic dose of nadroparin. Adequate was defined as a peak activity of ≥80% of the actual peak anti-Xa activity. If ≥80% of patients had adequately estimated peak activities in the 3- to 5-hour interval, measurement in this interval was regarded as acceptable. The secondary objective was to determine the pharmacokinetic profile of nadroparin. Methods In this single-center, prospective study, we evaluated anti-Xa activities in patients admitted to a general intensive care unit. After ≥4 equal doses of nadroparin, anti-Xa activity was measured according to a 12- to 24-hour sampling scheme. Results In 25 patients, anti-Xa activities drawn between 3 and 5 hours after administration ranged 80% to 100% of the actual peak activity. Compared to the threshold level of an adequate estimation in at least 20 patients (≥80%), measuring anti-Xa activities in the 3- to 5-hour interval is an acceptable method (1-tailed binomial test; P < .02). We found a large interindividual variability for nadroparin exposure (mean ± SD area-under-the-curve0-12h, 10.3 ± 4.8 IU·h/mL) and delayed elimination (t1/2 range, 4.0-120.9 hours) despite adequate renal function. Conclusion In critically ill patients, measuring anti-Xa activity in a 3- to 5-hour interval after subcutaneous injection of therapeutic nadroparin is an acceptable method to estimate the actual peak anti-Xa activity.
Collapse
Affiliation(s)
- Jelmer G. Sytema
- Department of Clinical Pharmacy, Martini Hospital, Groningen, the Netherlands
- Department of Clinical Pharmacy, Hospital Nij Smellinghe, Drachten, the Netherlands
| | - Bert G. Loef
- Intensive Care Unit, Martini Hospital, Groningen, the Netherlands
| | | | - Marijn Boer
- Intensive Care Unit, Martini Hospital, Groningen, the Netherlands
| | - Daniël J. Touw
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Marinus van Hulst
- Department of Clinical Pharmacy, Martini Hospital, Groningen, the Netherlands
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| |
Collapse
|
14
|
Twine CP, Kakkos SK, Aboyans V, Baumgartner I, Behrendt CA, Bellmunt-Montoya S, Jilma B, Nordanstig J, Saratzis A, Reekers JA, Zlatanovic P, Antoniou GA, de Borst GJ, Bastos Gonçalves F, Chakfé N, Coscas R, Dias NV, Hinchliffe RJ, Kolh P, Lindholt JS, Mees BME, Resch TA, Trimarchi S, Tulamo R, Vermassen FEG, Wanhainen A, Koncar I, Fitridge R, Matsagkas M, Valgimigli M. Editor's Choice - European Society for Vascular Surgery (ESVS) 2023 Clinical Practice Guidelines on Antithrombotic Therapy for Vascular Diseases. Eur J Vasc Endovasc Surg 2023; 65:627-689. [PMID: 37019274 DOI: 10.1016/j.ejvs.2023.03.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 04/05/2023]
|
15
|
Rajsic S, Breitkopf R, Treml B, Jadzic D, Oberleitner C, Oezpeker UC, Innerhofer N, Bukumiric Z. Association of aPTT-Guided Anticoagulation Monitoring with Thromboembolic Events in Patients Receiving V-A ECMO Support: A Systematic Review and Meta-Analysis. J Clin Med 2023; 12:jcm12093224. [PMID: 37176673 PMCID: PMC10179156 DOI: 10.3390/jcm12093224] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND The initiation of extracorporeal membrane oxygenation (ECMO) is associated with complex inflammatory and coagulatory processes, raising the need for systemic anticoagulation. The balance of anticoagulatory and procoagulant factors is essential, as therapeutic anticoagulation confers a further risk of potentially life-threatening bleeding. Therefore, our study aims to systematize and analyze the most recent evidence regarding anticoagulation monitoring and the thromboembolic events in patients receiving veno-arterial ECMO support. METHODS Using the PRISMA guidelines, we systematically searched the Scopus and PubMed databases up to October 2022. A weighted effects model was employed for the meta-analytic portion of the study. RESULTS Six studies comprising 1728 patients were included in the final analysis. Unfractionated heparin was used for anticoagulation, with an activated partial thromboplastin time (aPTT) monitoring goal set between 45 and 80 s. The majority of studies aimed to investigate the incidence of adverse events and potential risk factors for thromboembolic and bleeding events. None of the authors found any association of aPTT levels with the occurrence of thromboembolic events. Finally, the most frequent adverse events were hemorrhage (pooled 43%, 95% CI 28.4; 59.5) and any kind of thrombosis (pooled 36%, 95% CI 21.7; 53.7), and more than one-half of patients did not survive to discharge (pooled 54%). CONCLUSIONS Despite the tremendous development of critical care, aPTT-guided systemic anticoagulation is still the standard monitoring tool. We did not find any association of aPTT levels with thrombosis. Further evidence and new trials should clarify the true incidence of thromboembolic events, along with the best anticoagulation and monitoring strategy in veno-arterial ECMO patients.
Collapse
Affiliation(s)
- Sasa Rajsic
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Robert Breitkopf
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Benedikt Treml
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Dragana Jadzic
- Anesthesia and Intensive Care Department, Pain Therapy Service, Cagliari University, 09042 Cagliari, Italy
| | - Christoph Oberleitner
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Ulvi Cenk Oezpeker
- Department of Cardiac Surgery, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Nicole Innerhofer
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Zoran Bukumiric
- Institute of Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| |
Collapse
|
16
|
Lester W, Walker N, Bhatia K, Ciantar E, Banerjee A, Trinder J, Anderson J, Hodson K, Swan L, Bradbury C, Webster J, Tower C. British Society for Haematology guideline for anticoagulant management of pregnant individuals with mechanical heart valves. Br J Haematol 2023. [PMID: 37487690 DOI: 10.1111/bjh.18781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Affiliation(s)
- Will Lester
- Centre for Clinical Haematology, University Hospitals Birmingham NHS Foundation Trust Birmingham UK
| | - Niki Walker
- Department of Cardiology Golden Jubilee National Hospital West of Scotland Regional Heart and Lung Centre Clydebank UK
| | - Kailash Bhatia
- Department of Anaesthetics Manchester University NHS Foundation Trust Manchester UK
| | - Etienne Ciantar
- Department of Obstetrics & Gynaecology Leeds Teaching Hospitals NHS Trust Leeds UK
| | - Anita Banerjee
- Guy's and Saint Thomas' NHS Foundation Trust, Women's Services London UK
| | - Joanna Trinder
- Department of Obstetrics University Hospitals Bristol NHS Foundation Trust Bristol UK
| | | | - Kenneth Hodson
- Department of Maternity Newcastle Upon Tyne Hospitals NHS Foundation Trust Newcastle Upon Tyne UK
| | - Lorna Swan
- Department of Cardiology Golden Jubilee National Hospital West of Scotland Regional Heart and Lung Centre Clydebank UK
| | - Charlotte Bradbury
- Cellular and Molecular Medicine, University of Bristol Bristol UK
- Bristol Haematology and Oncology Centre Bristol UK
| | - Juliette Webster
- Department of Maternity Birmingham Women's and Children's NHS Foundation Trust Birmingham UK
| | - Clare Tower
- Department of Obstetric and Maternal and Fetal Medicine Manchester University NHS Foundation Trust Manchester UK
| |
Collapse
|
17
|
van den Broek MPH, Verschueren MV, Knibbe CAJ. Critical appraisal of evidence for anti-Xa monitoring and dosing of low-molecular-weight heparin in renal insufficiency. Expert Rev Clin Pharmacol 2022; 15:1155-1163. [PMID: 36189469 DOI: 10.1080/17512433.2022.2132228] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Several guidelines advise to monitor therapeutic LMWH therapy with peak anti-Xa concentrations in renal insufficiency with subsequent dose adjustments. A better understanding of the clinical association between peak anti-Xa concentrations and clinical outcomes is mandatory, because misunderstanding this association could lead to erroneous, and potentially even harmful, LMWH dose adjustments. AREAS COVERED We reviewed the evidence of the widely applied therapeutic window for anti-Xa peak concentrations and report on the evidence for pharmacokinetic dose reduction in renal insufficiency, limitations of peak and trough anti-Xa concentration monitoring. EXPERT OPINION The added value of peak anti-Xa monitoring in patients with renal insufficiency, receiving a dose reduced for pharmacokinetic changes, is not supported by data. Enoxaparin and nadroparin should be adjusted to 50-65% and 75-85% of the original dose for patients with a creatinine clearance (CrCL) of <30 ml/min and 30-60 ml/min, respectively. Tinzaparin should be adjusted to around 50% of the original dose for patients with a CrCL of <30 ml/min. In case anti-Xa monitoring is applied, trough concentration anti-Xa monitoring is preferred over peak monitoring, aiming at a maximum concentration of 0.4 IU/mL for once-daily dosed tinzaparin and 0.5 IU/mL for twice-daily dosed enoxaparin and nadroparin.
Collapse
Affiliation(s)
- M P H van den Broek
- Department of Clinical Pharmacy, St. Antonius Hospital, Utrecht, the Netherlands.,Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Marjon V Verschueren
- Department of Clinical Pharmacy, St. Antonius Hospital, Utrecht, the Netherlands
| | - C A J Knibbe
- Department of Clinical Pharmacy, St. Antonius Hospital, Utrecht, the Netherlands.,Division of Systems Pharmacology & Pharmacy, LACDR, Leiden University, Leiden, the Netherlands
| |
Collapse
|
18
|
Bösch J, Rugg C, Schäfer V, Lichtenberger P, Staier N, Treichl B, Rajsic S, Peer A, Schobersberger W, Fries D, Bachler M. Low-Molecular-Weight Heparin Resistance and Its Viscoelastic Assessment in Critically Ill COVID-19 Patients. Semin Thromb Hemost 2022; 48:850-857. [PMID: 36174602 DOI: 10.1055/s-0042-1756304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Critically ill COVID-19 patients present an inflammatory and procoagulant status with a high rate of relevant macro- and microvascular thrombosis. Furthermore, high rates of heparin resistance have been described; yet, individualized anticoagulation by drug monitoring has not been sufficiently researched. We analyzed data from critically ill COVID-19 patients treated at Innsbruck Medical University Hospital with routinely adapted low-molecular-weight heparin (LMWH) doses according to anti-Xa peak levels, and regularly performed ClotPro analyses (a viscoelastic hemostatic whole blood test). A total of 509 anti-Xa peak measurements in 91 patients were categorized as below (<0.008 IU/mL/mg), within (0.008-0-012 IU/mL/mg) or above (> 0.012 IU/mL/mg) expected ranges with respect to the administered LMWH doses. Besides intergroup comparisons, correlations between anti-Xa levels and ClotPro clotting times (CTs) were performed (226 time points in 84 patients). Anti-Xa peak levels remained below the expected range in the majority of performed measurements (63.7%). Corresponding patients presented with higher C-reactive protein and D-dimer but lower antithrombin levels when compared with patients achieving or exceeding the expected range. Consequently, higher enoxaparin doses were applied in the sub-expected anti-Xa range group. Importantly, 47 (51.6%) patients switched between groups during their intensive care unit (ICU) stay. Anti-Xa levels correlated weakly with IN test CT and moderately with Russell's viper venom (RVV) test CT. Critically ill COVID-19 patients present with a high rate of LMWH resistance but with a variable LMWH response during their ICU stay. Therefore, LMWH-anti-Xa monitoring seems inevitable to achieve adequate target ranges. Furthermore, we propose the use of ClotPro's RVV test to assess the coagulation status during LMWH administration, as it correlates well with anti-Xa levels but more holistically reflects the coagulation cascade than anti-Xa activity alone.
Collapse
Affiliation(s)
- Johannes Bösch
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Christopher Rugg
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Volker Schäfer
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Philipp Lichtenberger
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Nikolai Staier
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Benjamin Treichl
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Sasa Rajsic
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Andreas Peer
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Wolfgang Schobersberger
- Institute for Sports Medicine, Alpine Medicine and Health Tourism (ISAG), UMIT - Private University for Health Sciences and Health Technology, Hall i.T., Austria
| | - Dietmar Fries
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Mirjam Bachler
- Department of Anesthesia and Intensive Care Medicine, Medical University Innsbruck, Innsbruck, Austria.,Institute for Sports Medicine, Alpine Medicine and Health Tourism (ISAG), UMIT - Private University for Health Sciences and Health Technology, Hall i.T., Austria
| |
Collapse
|
19
|
Wiegele M, Adelmann D, Dibiasi C, Pausch A, Baierl A, Schaden E. Monitoring of Enoxaparin during Hemodialysis Covered by Regional Citrate Anticoagulation in Acute Kidney Injury: A Prospective Cohort Study. J Clin Med 2021; 10:jcm10194491. [PMID: 34640507 PMCID: PMC8509597 DOI: 10.3390/jcm10194491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 12/31/2022] Open
Abstract
Background: Current guidelines recommend the monitoring of anti-factor Xa (anti-Xa) levels to avoid an accumulation of low-molecular-weight heparins in patients with acute kidney injury, but there is no evidence on how to proceed with such monitoring during continuous renal replacement therapy. Against this background, we investigated the potential accumulation of enoxaparin administered subcutaneously for venous thromboembolism prophylaxis in critically ill patients during continuous renal replacement therapy covered by regional citrate anticoagulation. Methods: Anti-Xa levels were measured at baseline (≤12 h before renal replacement therapy) and on three consecutive days (A to C) when enoxaparin had reached trough levels. Supplementary testing included modified assays of rotational thromboelastometry known to be highly sensitive for low-molecular-weight heparins. Results: The 16 men and 13 women included were adults comparable in age, body mass index, thromboembolism risk assessment, and clinical severity of the disease. Throughout the four examinations, the median trough levels of anti-Xa remained below the detection limit of the test (<0.1 IU mL−1), with interquartile ranges of <0.1 to 0.14 IU mL−1 at baseline and <0.1 to 0.16 IU mL−1 on days A/B/C. All rotational thromboelastometry parameters of clot initiation and clot formation dynamics did not significantly change from baseline to day C. Conclusions: Neither anti-Xa levels nor modified assays of rotational thromboelastometry revealed any accumulation of enoxaparin administered for thromboprophylaxis during continuous renal replacement therapy covered by regional citrate anticoagulation. Although generally recommended in patients with acute kidney injury, monitoring of anti-Xa levels should be questioned in this defined setting.
Collapse
Affiliation(s)
- Marion Wiegele
- Department of Anesthesia, Critical Care and Pain Medicine, Division of General Anesthesia and Intensive Care Medicine, Medical University of Vienna, 1090 Vienna, Austria; (M.W.); (C.D.); (A.P.)
| | - Dieter Adelmann
- Department of Anesthesia & Perioperative Care, University of California, San Francisco, CA 94143, USA;
| | - Christoph Dibiasi
- Department of Anesthesia, Critical Care and Pain Medicine, Division of General Anesthesia and Intensive Care Medicine, Medical University of Vienna, 1090 Vienna, Austria; (M.W.); (C.D.); (A.P.)
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Andrè Pausch
- Department of Anesthesia, Critical Care and Pain Medicine, Division of General Anesthesia and Intensive Care Medicine, Medical University of Vienna, 1090 Vienna, Austria; (M.W.); (C.D.); (A.P.)
| | - Andreas Baierl
- Department of Statistic and Operations Research, University of Vienna, 1090 Vienna, Austria;
| | - Eva Schaden
- Department of Anesthesia, Critical Care and Pain Medicine, Division of General Anesthesia and Intensive Care Medicine, Medical University of Vienna, 1090 Vienna, Austria; (M.W.); (C.D.); (A.P.)
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: ; Tel.: +43-1-40400-41020
| |
Collapse
|
20
|
Kjaergaard AB, Fuglsang J, Hvas AM. Anti-Xa Monitoring of Low-Molecular-Weight Heparin during Pregnancy: A Systematic Review. Semin Thromb Hemost 2021; 47:824-842. [PMID: 34130342 DOI: 10.1055/s-0041-1726374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Low-molecular-weight heparin (LMWH) is commonly used for preventing or treating venous thromboembolic disease (VTE) during pregnancy. The physiological changes in maternal metabolism have led to discussions on optimal LMWH dosing strategy and possible need for monitoring. The aim of this systematic review is to summarize and discuss whether LMWH dose adjustment according to anti-Xa provides superior effectiveness and safety compared with weight adjusted or fixed dosed LMWH in pregnant women. A systematic literature search was performed in PubMed, Embase, and Scopus on September 26, 2020. The study is reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Effectiveness was defined as episodes of thrombosis and safety as bleeding episodes. In total, 33 studies were included: 4 randomized controlled studies and 29 cohort studies. Prophylactic dosing strategies employing weight dosed, fixed dosed, or anti-Xa adjusted LMWH dosing performed equal in effectiveness and safety. In pregnant women with VTE or high thromboembolic risk, therapeutic weight-adjusted LMWH and weight plus anti-Xa-adjusted LMWH provided equal results in terms of effectiveness and safety. Pregnant women with mechanical heart valves (MHVs) received therapeutic anti-Xa-adjusted LMWH with four out of seven studies presenting mean peak anti-Xa within target ranges. Still, pregnant women with MHV experienced both thrombosis and bleeding with anti-Xa in target. Based on the results of this systematic review, current evidence does not support the need for anti-Xa monitoring when using LMWH as thromboprophylaxis or treatment during pregnancy. Nonetheless, the need for anti-Xa monitoring in pregnant women with MHV may need further scrutiny.
Collapse
Affiliation(s)
| | - Jens Fuglsang
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Anne-Mette Hvas
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| |
Collapse
|