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Cohen O, Santagata D, Ageno W. Novel horizons in anticoagulation: the emerging role of factor XI inhibitors across different settings. Haematologica 2024; 109:3110-3124. [PMID: 38779744 PMCID: PMC11443408 DOI: 10.3324/haematol.2023.283682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Indexed: 05/25/2024] Open
Abstract
Anticoagulants have long been fundamental in preventing and treating thromboembolic disorders, with a recent shift of focus towards direct oral anticoagulants, thanks to their ease of use, efficacy, and safety. Despite these advancements, bleeding complications remain a major concern with any anticoagulant, highlighting the need for safer drugs. Factor XI (FXI) inhibitors have emerged as promising agents in this regard, offering a novel approach by targeting upstream factors in the coagulation system. Phase II trials have shown encouraging outcomes, indicating a reduced bleeding risk compared to that associated with traditional anticoagulants, particularly in the context of cardiovascular disease management when combined with antiplatelet therapy. However, the variability in findings and limited efficacy data call for a cautious interpretation pending insights from phase III trials. These trials are essential for validating the potential of FXI inhibitors to balance bleeding risk reduction and maintain anticoagulant efficacy. This review explores the pharmacology, potential indications, clinical data, and future directions of FXI inhibitors, providing a perspective on their evolving role in anticoagulant therapy. It also provides a detailed analysis of data from published clinical trials on FXI inhibitors in various indications. Preliminary data from ongoing trials are also outlined. As the field moves forward, a cautiously optimistic outlook can be expected, focusing on comprehensive data from phase III trials to define the role of FXI inhibitors in various clinical scenarios.
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Affiliation(s)
- Omri Cohen
- Department of Medicine and Surgery, University of Insubria, Varese, Italy; National Hemophilia Center and Institute of Thrombosis and Hemostasis, Sheba Medical Center, Tel-Hashomer, Israel; The Amalia Biron Institute of thrombosis research, Aviv University
| | - Davide Santagata
- Department of Medicine and Surgery, University of Insubria, Varese
| | - Walter Ageno
- Department of Medicine and Surgery, University of Insubria, Varese.
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Khodadadiyan A, Jazi K, Bazrafshan Drissi H, Bazroodi H, Mashayekh M, Sadeghi E, Gholamabbas G, Bazrafshan M, Rahmanian M. Direct oral anticoagulants versus vitamin K antagonists: Which one is more effective in atrial fibrillation. Perfusion 2024; 39:1286-1294. [PMID: 37697799 DOI: 10.1177/02676591231202383] [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] [Indexed: 09/13/2023]
Abstract
BACKGROUND The optimal approach for anticoagulation in patients with bioprosthetic valves and atrial fibrillation (AF) remains a subject of debate. A meta-analysis using updated evidence to evaluate the efficacy and safety of direct oral anticoagulants (DOACs) compared to vitamin K antagonists (VKAs) in patients with AF and bioprosthetic valves to address this controversy. METHODS A comprehensive search was conducted in multiple databases, including PubMed, Scopus, Web of Science, ProQuest, and the Cochrane Central Register of Controlled Trials, up until March 2023. The search aimed to identify relevant randomized controlled trials (RCTs) that examined the efficacy and safety outcomes of both direct oral anticoagulants (DOACs) and vitamin K antagonists (VKAs) in patients with bioprosthetic valves and atrial fibrillation. The primary outcomes of interest were major bleeding and all-cause mortality. RESULTS Our study demonstrated that despite the difference was not significant, the hazard of all-cause mortality was 2.5% higher in the DOAC group (HR = 1.03, 95% CI = [0.88, 1.19], p-value = .75). Similarly, the hazard of stroke (HR = 1.03, 95% CI = [0.87, 1.32], p-value = .71) and major bleeding (HR = 1.11, 95% CI = [0.89, 1.38], p-value = .36) were found to be respectively 3.2 and 10.7% higher in the DOAC group, although the difference was not significant. However, the hazard of intracranial hemorrhage was found to be 28.8 lower in the DOAC treatment group (HR = 0.71, 95% CI = [0.39, 1.31], p-value = .27), which again was not statistically significant. CONCLUSIONS Our meta-analysis demonstrates that in patients undergoing bioprosthetic valve surgery and presenting with AF afterward, DOAC and VKA are similar regarding life-threatening and all-cause mortality outcomes, including major bleeding, stroke, and intracranial hemorrhage.
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Affiliation(s)
| | - Kimia Jazi
- Student Research Committee, Faculty of Medicine, Medical University of Qom, Qom, Iran
| | | | - Helia Bazroodi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mina Mashayekh
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Erfan Sadeghi
- Research Consultation Center (RCC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ghazal Gholamabbas
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Bazrafshan
- Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Rahmanian
- Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Ouatu A, Buliga-Finiș ON, Tanase DM, Badescu MC, Dima N, Floria M, Popescu D, Richter P, Rezus C. Optimizing Anticoagulation in Valvular Heart Disease: Navigating NOACs and VKAs. J Pers Med 2024; 14:1002. [PMID: 39338256 PMCID: PMC11433501 DOI: 10.3390/jpm14091002] [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: 07/29/2024] [Revised: 09/11/2024] [Accepted: 09/18/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND/OBJECTIVES Non-vitamin K antagonist oral anticoagulants (NOACs) have demonstrated similar effectiveness and safety profiles to vitamin K antagonists (VKAs) in treating nonvalvular atrial fibrillation (AF). Given their favorable pharmacological profile, including the rapid onset and offset of action, fixed dosing, and predictable pharmacokinetics with a consistent dose-response relationship, reducing the need for frequent blood tests, researchers have investigated the potential of NOACs in patients with AF and valvular heart disease (VHD). METHODS Clinical trials, excluding patients with mechanical prosthetic valves or moderate/severe mitral stenosis, have shown the benefits of NOACs over VKAs in this population. However, there is a need for further research to determine if these findings apply to mechanical valve prostheses and NOACs. RESULTS Several ongoing randomized controlled trials are underway to provide more definitive evidence regarding NOAC treatment in moderate to severe rheumatic mitral stenosis. Importantly, recent trials that included patients with atrial fibrillation and bioprosthetic valves (also transcatheter heart valves) have provided evidence supporting the safety of NOACs in this specific patient population. Ongoing research aims to clearly define the specific scenarios where NOACs can be safely and effectively prescribed for various types of VHD, including moderate/severe mitral stenosis and mechanical valves. CONCLUSIONS The aim of this review is to accurately identify the specific situations in which NOACs can be prescribed in patients with VHD, with a focus centered on each type of valvulopathy.
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Affiliation(s)
- Anca Ouatu
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Oana Nicoleta Buliga-Finiș
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Daniela Maria Tanase
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Minerva Codruta Badescu
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Nicoleta Dima
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Mariana Floria
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Diana Popescu
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
| | - Patricia Richter
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
| | - Ciprian Rezus
- Faculty of General Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania
- Department of Internal Medicine, IIIrd Medical Clinic, "Sf. Spiridon" Emergency Hospital, 1 Independentei Street, 700111 Iasi, Romania
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Furman K, Giustini A, Branstetter J, Woods G, Downey LA. A review of the perioperative management of direct oral anticoagulants for pediatric anesthesiologists. Paediatr Anaesth 2024. [PMID: 39244715 DOI: 10.1111/pan.14983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/29/2024] [Accepted: 08/13/2024] [Indexed: 09/10/2024]
Abstract
BACKGROUND Although direct oral anticoagulants (DOACs) have been used in the adult population for over a decade, DOACs use has begun to rise in pediatric populations since FDA approval of rivaroxaban and dabigatran, DOACs offer several advantages for pediatric patients, to other anticoagulants, including a similar safety profile, minimal lab monitoring, and ease of administration. The rise in DOAC use has led to an increasing number of pediatric patients managed on DOACs presenting for elective and urgent procedures. Perioperative management of anticoagulation is often challenging for providers due to the lack of expert consensus guidelines and the difficulty in balancing a patient's thrombotic risk with bleeding risk for a given procedure. AIMS Using the most up to date literature, we provide a focused review on the perioperative management of DOACs in pediatric patients. CONCLUSIONS This work presents a focused review for pediatric anesthesiologists on clinically available DOACs, perioperative monitoring and management of DOACs, as well as options and indications for reversal. While consensus expert practice guidelines are still needed, we hope this work will familiarize perioperative physicians with these agents, recommended uses, and potential perioperative management.
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Affiliation(s)
- Kara Furman
- Stanford Medicine Children's Health, Stanford University, Stanford, California, USA
| | | | | | - Gary Woods
- Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Laura A Downey
- Children's Healthcare of Atlanta, Emory University Medical School, Atlanta, Georgia, USA
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5
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Ioannou M, Leonidou E, Chaziri I, Mouzarou A. Direct Oral Anticoagulants: Navigating Through Clinical Challenges. Cardiovasc Drugs Ther 2024; 38:637-650. [PMID: 37552381 DOI: 10.1007/s10557-023-07499-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 08/09/2023]
Abstract
PURPOSE Direct oral anticoagulants (DOACs) have been approved, for over a decade, by both European and American medicine agencies, for treatment and prevention of several cardiovascular conditions. Since then, an increasing amount of data has been added to the medical literature day by day, resulting in a dichotomy in selection of the appropriate agent, dosage, and duration of treatment for special populations with multiple comorbidities. Considering these issues, we have prepared a comprehensive review for the clinical practitioner, to optimize the DOAC utilization in clinical practice. METHODS A thorough literature search and review was conducted, concerning mainly the last decade. Our review focused on the current guidelines and the most recently published studies in PubMed, Science Direct Scopus, and Google Scholar to date. CONCLUSION The purpose of this study is to provide guidance for healthcare professionals for making proper decisions when confronted with clinical challenges. Nevertheless, further research is required to establish DOAC superiority in complicated cases, where there is clinical uncertainty.
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Affiliation(s)
- Maria Ioannou
- Department of Cardiology, General Hospital Limassol, State Health Organization Services, 4131, Limassol, Cyprus.
| | - Elena Leonidou
- Department of Cardiology, General Hospital Limassol, State Health Organization Services, 4131, Limassol, Cyprus
| | - Ioanna Chaziri
- Department of Pneumonology, Northern Älvborg County Hospital, Trollhättan, Sweden
| | - Angeliki Mouzarou
- Department of Cardiology, General Hospital Paphos, State Health Organization Services, Paphos, Cyprus
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Alshihab S, Mohamed Ibrahim MI, Hadi MA, Syed A, Arabi A, Al-Qahtani A, Almujalli H, Rafie I, Al-Kuwari MG, Kandy M, Al-Zaidan M. Evaluation of warfarin management in primary health care centers in Qatar: A retrospective cross-sectional analysis of the national dataset. Curr Probl Cardiol 2024; 49:102427. [PMID: 38301919 DOI: 10.1016/j.cpcardiol.2024.102427] [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: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND Warfarin management is associated with severe complications, highlighting the critical need to evaluate the quality of its administration. OBJECTIVES To evaluate the quality of warfarin management for patients managed in primary healthcare centers by measuring the percentage of Time in Therapeutic Range (TTR) and the proportion of extreme out-of-range international normalized ratio (INR) values. METHODS This is a cross-sectional study. Data was extracted from a national dataset retrieved from the largest primary healthcare provider in Qatar. TTR was calculated using the traditional method. Inferential and descriptive analyses were performed as appropriate. RESULTS Four hundred ninety-four patients met the inclusion criteria. The mean (SD) TTR was 45.3 % (17.5). This was significantly lower than the recommended cutoff value (P<0.001). Extreme out-of-range INR accounted for 24.7 % of total INR readings. CONCLUSIONS The management of patients taking warfarin in Qatar is inadequate. More effective strategies are warranted to ensure safe and effective therapy.
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Affiliation(s)
- Safaa Alshihab
- Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | | | - Muhammad Abdul Hadi
- Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Abdullah Syed
- Primary Health Care Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Abdulrahman Arabi
- Heart Hospital, Hamad Medical Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar, Doha, Qatar
| | - Awad Al-Qahtani
- Heart Hospital, Hamad Medical Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar, Doha, Qatar
| | - Hanan Almujalli
- Primary Health Care Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Ihsan Rafie
- Heart Hospital, Hamad Medical Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar, Doha, Qatar
| | - Mohamed Gaith Al-Kuwari
- Primary Health Care Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Mujeeb Kandy
- Primary Health Care Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Manal Al-Zaidan
- Primary Health Care Corporation, Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar.
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7
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Cross B, Turner RM, Zhang JE, Pirmohamed M. Being precise with anticoagulation to reduce adverse drug reactions: are we there yet? THE PHARMACOGENOMICS JOURNAL 2024; 24:7. [PMID: 38443337 PMCID: PMC10914631 DOI: 10.1038/s41397-024-00329-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 02/11/2024] [Accepted: 02/15/2024] [Indexed: 03/07/2024]
Abstract
Anticoagulants are potent therapeutics widely used in medical and surgical settings, and the amount spent on anticoagulation is rising. Although warfarin remains a widely prescribed oral anticoagulant, prescriptions of direct oral anticoagulants (DOACs) have increased rapidly. Heparin-based parenteral anticoagulants include both unfractionated and low molecular weight heparins (LMWHs). In clinical practice, anticoagulants are generally well tolerated, although interindividual variability in response is apparent. This variability in anticoagulant response can lead to serious incident thrombosis, haemorrhage and off-target adverse reactions such as heparin-induced thrombocytopaenia (HIT). This review seeks to highlight the genetic, environmental and clinical factors associated with variability in anticoagulant response, and review the current evidence base for tailoring the drug, dose, and/or monitoring decisions to identified patient subgroups to improve anticoagulant safety. Areas that would benefit from further research are also identified. Validated variants in VKORC1, CYP2C9 and CYP4F2 constitute biomarkers for differential warfarin response and genotype-informed warfarin dosing has been shown to reduce adverse clinical events. Polymorphisms in CES1 appear relevant to dabigatran exposure but the genetic studies focusing on clinical outcomes such as bleeding are sparse. The influence of body weight on LMWH response merits further attention, as does the relationship between anti-Xa levels and clinical outcomes. Ultimately, safe and effective anticoagulation requires both a deeper parsing of factors contributing to variable response, and further prospective studies to determine optimal therapeutic strategies in identified higher risk subgroups.
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Affiliation(s)
- Benjamin Cross
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
| | - Richard M Turner
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
- GSK, Stevenage, Hertfordshire, SG1 2NY, UK
| | - J Eunice Zhang
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK
| | - Munir Pirmohamed
- Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology, The University of Liverpool, 1-5 Brownlow Street, Liverpool, L69 3GL, UK.
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Kazma H, Fakih M, Saleh AA, Tarhini Y, Mohammed M. Reversing the Tide: A Case of a Mechanical Aortic Valve Recipient Lost to Follow-up, Education on Rivaroxaban Contraindications, and the Vital Role of Acenocoumarol in Preventing Valve Thrombosis. Cureus 2024; 16:e57059. [PMID: 38681325 PMCID: PMC11052516 DOI: 10.7759/cureus.57059] [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] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Aortic stenosis is the most common heart valve disease, especially among the elderly. Symptomatic aortic valve stenosis is linked to a poor prognosis and a high mortality rate if left untreated. The only effective treatment for severe symptomatic aortic stenosis is aortic valve replacement using either a mechanical or a biological prosthesis. Mechanical valve prostheses, while highly durable, are thrombogenic, necessitating lifelong anticoagulation with oral anti-vitamin K agents, such as acenocoumarol. Conversely, bioprosthetic valves, though less durable, carry a minimal thrombogenic risk and do not require anticoagulation. Currently, there is no proven role for direct-acting oral anticoagulants (DOACs) in patients with mechanical heart valves due to insufficient clinical trial data regarding their safety in this patient population. Herein, we present the case of a 59-year-old female known to have aortic stenosis, who underwent surgical treatment with mechanical aortic valve replacement eight years ago. Post-surgery, acenocoumarol was initiated. However, 18 months prior to presenting at our institution, the patient started taking rivaroxaban (a DOAC) instead of acenocoumarol due to the unavailability of acenocoumarol during the ongoing economic crisis in Lebanon, without consulting her cardiologist. Although she was followed up by her general practitioner and reported having a mechanical valve, her son contradicted this, claiming she had a biological valve. After thorough investigations, including chest X-ray, echocardiography, and fluoroscopy, it was confirmed that the patient indeed had a normally functioning mechanical aortic valve. Immediate corrective measures were taken, starting with IV unfractionated heparin and acenocoumarol, targeting an International Normalized Ratio (INR) between 2.5 and 3, while educating the patient about her condition and the importance of adhering to acenocoumarol therapy.
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Affiliation(s)
- Hasan Kazma
- Cardiology, Bahman Hospital, Beirut, LBN
- Medicine, Faculty of Medicine, Lebanese University, Beirut, LBN
| | - Malak Fakih
- Cardiology, Bahman Hospital, Beirut, LBN
- Cardiology, Faculty of Medicine, Lebanese University, Beirut, LBN
| | - Aalaa A Saleh
- General Medicine, Faculty of Medicine, Lebanese University, Beirut, LBN
| | - Yara Tarhini
- General Medicine, Faculty of Medicine, Lebanese University, Beirut, LBN
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9
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Prakash S, Mares AC, Porres-Aguilar M, Mukherjee D, Barnes GD. Factor XI/XIa inhibitors for the prevention and treatment of venous and arterial thromboembolism: A narrative review. Vasc Med 2024; 29:85-92. [PMID: 37947131 DOI: 10.1177/1358863x231206778] [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] [Indexed: 11/12/2023]
Abstract
During the past decade, direct oral anticoagulants (DOACs) have advanced and simplified the prevention and treatment of venous thromboembolism (VTE). However, there remains a high incidence of bleeds, which calls for agents that have a reduced risk of bleeding. Factor XI (FXI) deficiency is associated with lower rates of venous thrombosis and stroke compared to the general population with a lower risk of bleeding. In conjunction with this, phase 2 studies have demonstrated safety and the potential for reduced thrombotic events with FXI inhibitors as compared to currently available medications. The aim of this review is to summarize key data on the clinical pharmacology of FXI, the latest developments in clinical trials of FXI inhibitors, and to describe the efficacy and safety profiles of FXI inhibitors for the prevention of venous and arterial thromboembolism.
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Affiliation(s)
- Swathi Prakash
- Department of Internal Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
| | - Adriana C Mares
- Department of Internal Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA
- Yale University School of Medicine, New Haven, CT, USA
| | - Mateo Porres-Aguilar
- Department of Internal Medicine, Divisions of Hospital and Adult Thrombosis Medicine, Texas Tech University Health Sciences Center and Paul L Foster School of Medicine, El Paso, TX, USA
| | - Debabrata Mukherjee
- Division of Cardiovascular Diseases, Texas Tech University Health Sciences Center and Paul L Foster School of Medicine, El Paso, TX, USA
| | - Geoffrey D Barnes
- Department of Internal Medicine, Division of Cardiovascular Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
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10
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Abstract
Direct oral anticoagulants (DOACs) have largely replaced vitamin K antagonists, mostly warfarin, for the main indications for oral anticoagulation, prevention and treatment of venous thromboembolism, and prevention of embolic stroke in atrial fibrillation. While DOACs offer practical, fixed-dose anticoagulation in many patients, specific restrictions or contraindications may apply. DOACs are not sufficiently effective in high-thrombotic risk conditions such as antiphospholipid syndrome and mechanical heart valves. Patients with cancer-associated thrombosis may benefit from DOACs, but the bleeding risk, particularly in those with gastrointestinal or urogenital tumors, must be carefully weighed. In patients with frailty, excess body weight, and/or moderate-to-severe chronic kidney disease, DOACs must be cautiously administered and may require laboratory monitoring. Reversal agents have been developed and approved for life-threatening bleeding. In addition, the clinical testing of potentially safer anticoagulants such as factor XI(a) inhibitors is important to further optimize anticoagulant therapy in an increasingly elderly and frail population worldwide.
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Affiliation(s)
- Renske H Olie
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
| | - Kristien Winckers
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
| | - Bianca Rocca
- Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Hugo Ten Cate
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
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11
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Chakraborty D. Prosthetic Heart Valve and Novel Oral Anticoagulant: Is it Not Yet Time to Think Over Seriously? Neurol India 2023; 71:1286-1287. [PMID: 38174484 DOI: 10.4103/0028-3886.391345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
- Debabrata Chakraborty
- Department of Neurology, Apollo Multispeciality Hospitals, Kolkata, West Bengal, India
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12
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Liang S, Guan M, Liu Z, Ruan X, Huang H, Zhong H. Sailing between scylla and charybdis-anticoagulation dilemma in a patient with calciphylaxis and mechanical cardiac valve replacement: a case report and literature review. Ren Fail 2023; 45:2264401. [PMID: 37799073 PMCID: PMC10561572 DOI: 10.1080/0886022x.2023.2264401] [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: 08/22/2023] [Accepted: 09/23/2023] [Indexed: 10/07/2023] Open
Abstract
Calciphylaxis is a rare and life-threatening condition in patients with end-stage kidney disease (ESKD). In this case report, we reported a 72-year-old female who had undergone aortic and mitral mechanical valve replacement 22 years ago due to rheumatic aortic and mitral stenosis. Following the valve replacement, she initiated warfarin treatment. Five years ago, she received a diagnosis of uremia and has since been undergoing regular hemodialysis. Ten months prior to her current admission, she experienced excruciating pain and was diagnosed with calciphylaxis. Additionally, an electrocardiogram revealed atrial fibrillation, while echocardiography indicated that the aortic and mitral mechanical valves were appropriately positioned, with normal perivalvular surroundings and good valve leaflet activity. No noticeable thrombosis was observed in the left atrium or left atrial appendage. Color Doppler imaging showed moderate stenosis in the lower extremity arteries, with no venous thromboembolism present. Extensive eggshell-like calcification within the arterial media was detected. The patient was managed with regular hemodialysis, symptomatic treatments (including anticoagulation and analgesia), and sodium thiosulfate. Unfortunately, symptomatic management provided limited relief, and during the one-month follow-up period, the patient passed away due to septic shock. Currently, there is insufficient conclusive evidence regarding alternative influential anticoagulants or appropriate prosthetic valve selection. For individuals with ESKD receiving maintenance hemodialysis, early identification, diagnosis, and treatment of calciphylaxis are of paramount importance.
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Affiliation(s)
- Shichu Liang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Mingjing Guan
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhiyue Liu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaomiao Ruan
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, China
| | - He Huang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Hui Zhong
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, China
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Ng AP, Verma A, Sanaiha Y, Williamson CG, Afshar Y, Benharash P. Maternal and Fetal Outcomes in Pregnant Patients With Mechanical and Bioprosthetic Heart Valves. J Am Heart Assoc 2023; 12:e028653. [PMID: 37183876 DOI: 10.1161/jaha.122.028653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Background Guidelines for choice of prosthetic heart valve in people of reproductive age are not well established. Although biologic heart valves (BHVs) have risk of deterioration, mechanical heart valves (MHVs) require lifelong anticoagulation. This study aimed to characterize the association of prosthetic valve type with maternal and fetal outcomes in pregnant patients. Methods and Results Using the 2008 to 2019 National Inpatient Sample, we identified all adult patients hospitalized for delivery with prior heart valve implantation. Multivariable regressions were used to analyze the primary outcome, major adverse cardiovascular events, and secondary outcomes, including maternal and fetal complications, length of stay, and costs. Among 39 871 862 birth hospitalizations, 4152 had MHVs and 874 had BHVs. Age, comorbidities, and cesarean birth rates were similar between patients with MHVs and BHVs. The presence of a prosthetic valve was associated with over 22-fold increase in likelihood of major adverse cardiovascular events (MHV: adjusted odds ratio, 22.1 [95% CI, 17.3-28.2]; BHV: adjusted odds ratio, 22.5 [95% CI, 13.9-36.5]) as well as increased duration of stay and hospitalization costs. However, patients with MHVs and BHVs had no significant difference in the odds of any maternal outcome, including major adverse cardiovascular events, hypertensive disease of pregnancy, and ante/postpartum hemorrhage. Similarly, fetal complications were more likely in patients with valve prostheses, including a 4-fold increase in odds of stillbirth, but remained comparable between MHVs and BHVs. Conclusions Patients hospitalized for delivery with prior valve replacement carry substantial risk of adverse maternal and fetal events, regardless of valve type. Our findings reveal comparable outcomes between MHVs and BHVs.
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Affiliation(s)
- Ayesha P Ng
- Cardiovascular Outcomes Research Laboratories (CORELAB), Division of Cardiac Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA
| | - Arjun Verma
- Cardiovascular Outcomes Research Laboratories (CORELAB), Division of Cardiac Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA
| | - Yas Sanaiha
- Cardiovascular Outcomes Research Laboratories (CORELAB), Division of Cardiac Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA
| | - Catherine G Williamson
- Cardiovascular Outcomes Research Laboratories (CORELAB), Division of Cardiac Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA
| | - Yalda Afshar
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology David Geffen School of Medicine at UCLA Los Angeles CA USA
- Molecular Biology Insitute University of California Los Angeles CA USA
| | - Peyman Benharash
- Cardiovascular Outcomes Research Laboratories (CORELAB), Division of Cardiac Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA
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Ryu R, Bahjri K, Tran H. Potential Association of Holidays on Internationalized Normalized Ratio in Warfarin-Users at a Multidisciplinary Clinic. Cardiol Res 2023; 14:38-44. [PMID: 36896230 PMCID: PMC9990547 DOI: 10.14740/cr1448] [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: 11/08/2022] [Accepted: 01/06/2023] [Indexed: 02/27/2023] Open
Abstract
Background Warfarin is approved by the United States Food and Drug Administration for numerous clinical indications. The effectiveness of warfarin is highly dependent on the time-in-therapeutic range based on the international normalized ratio (INR) goal, which may be altered by changes in diet, alcohol intake, concomitant drugs, and travel, all of which are prevalent during the holidays. At this time, there are no published studies assessing the impact of holidays on INR in warfarin-users. Methods A retrospective chart review was conducted on all adult patients taking warfarin and managed at a multidisciplinary clinic. Patients were included if they were taking warfarin at home regardless of indication for anticoagulation. The INR pre- and post-holiday was assessed. Results Of a total of 92 patients, the mean age was 71.5 ± 14.3 years, and most patients were on warfarin with an INR goal of 2 - 3 (89%). There were significant differences in INR before and after Independence Day (2.55 vs. 2.81, P = 0.043) and Columbus Day (2.39 vs. 2.82, P < 0.001). The remaining holidays showed no significant differences in INR before and after each respective holiday. Conclusions There may be factors related to Independence and Columbus Day that are increasing the level of anticoagulation in warfarin-users. Although the mean post-holiday INR values, in essence, maintained within the typical target of 2 - 3, our study underscores the specialized care that is warranted in higher risk patients to prevent a continued increase in INR and subsequent toxicities. We hope our results would be hypothesis-generating and aid in the development of larger, prospective evaluations to validate the findings of our present study.
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Affiliation(s)
- Rachel Ryu
- Western University of Health Sciences College of Pharmacy, Pomona, CA 91766, USA
| | - Khaled Bahjri
- Loma Linda University School of Pharmacy, Loma Linda, CA 92350, USA
| | - Huyentran Tran
- Loma Linda University School of Pharmacy, Loma Linda, CA 92350, USA
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Sagris M, Theofilis P, Papanikolaou A, Antonopoulos AS, Tsioufis C, Tousoulis D. Direct Oral Anticoagulants use in Patients with Stable Coronary Artery Disease, Acute Coronary Syndrome or Undergoing Percutaneous Coronary Intervention. Curr Pharm Des 2023; 29:2787-2794. [PMID: 38038010 DOI: 10.2174/0113816128259508231118141831] [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: 05/22/2023] [Revised: 10/27/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023]
Abstract
The investigation for the optimal anticoagulation strategy for patients with stable coronary artery disease, acute coronary syndromes, and undergoing percutaneous coronary intervention constitutes a great challenge for physicians and is a field of extensive research. Although aspirin is commonly recommended as a protective measure for all patients with coronary artery disease and dual antiplatelet therapy for those undergoing procedures, such as percutaneous coronary intervention or coronary artery bypass graft surgery, the risk of recurrent cardiovascular events remains significant. In this context, the shortcomings associated with the use of vitamin K antagonists have led to the assessment of direct oral anticoagulants as promising alternatives. This review will explore and provide a comprehensive analysis of the existing data regarding the use of direct oral anticoagulants in patients with stable coronary artery disease or acute coronary syndrome, as well as their effectiveness in those undergoing percutaneous coronary intervention or coronary artery bypass graft surgery.
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Affiliation(s)
- Marios Sagris
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
| | - Panagiotis Theofilis
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
| | - Angelos Papanikolaou
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
| | - Alexios S Antonopoulos
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
| | - Constantinos Tsioufis
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
| | - Dimitris Tousoulis
- 1st Cardiology Department, "Hippokration" General Hospital, University of Athens Medical School, Athens, Greece
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Ryu R. DOACs in Valvular Heart Disease: Latest Key Updates on PROACT Xa (Apixaban) and INVICTUS (Rivaroxaban). Clin Appl Thromb Hemost 2022; 28:10760296221144044. [PMID: 36474349 PMCID: PMC9732789 DOI: 10.1177/10760296221144044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Rachel Ryu
- College of Pharmacy, Western University of Health
Sciences, Pomona, CA, USA,Rachel Ryu, College of Pharmacy, Western
University of Health Sciences, 09 East Second St, Pomona, CA 91766, USA.
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Abstract
Rheumatic heart disease (RHD) is the underlying cause of a significant proportion of atrial fibrillation (AF) in the low- and middle-income countries, while nonvalvular AF is the most common cause of AF in high-income countries. RHD is also common among African Americans, migrants, and the indigenous population of high-income countries. The onset of AF in RHD patients is a clinical marker of worse outcomes and is associated with significant morbidity and mortality. Despite RHD being a major cause of morbidity and mortality in the young in many parts of the world, it is often neglected by policymakers, the media, and even the medical fraternity. Stroke risk assessment using various risk scores has not been systematically evaluated in rheumatic AF patients. Rate control may not be ideal for symptom control in rheumatic AF patients considering the young age and an active lifestyle. There is limited information regarding the nonpharmacological management of rheumatic AF. The current management guidelines based on nonvalvular AF do not apply to rheumatic AF patients who are often younger, are women, and have fewer comorbidities. This review critically looks at specific areas such as stroke prevention with reference to direct oral anticoagulants, cardioversion, rate and rhythm control strategies, and the role of nonpharmacological methods in rheumatic AF management. Future recommendations must be cognizant of local health care systems and resourcing considering the geographic distribution of the disease.
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Affiliation(s)
- Jayaprakash Shenthar
- Electrophysiology Unit, Department of Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bangalore, India
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Vitamin-K Antagonists vs. Direct Oral Anticoagulants on Severity of Upper Gastrointestinal Bleeding: A Retrospective Analysis of Italian and UK Data. J Clin Med 2022; 11:jcm11216382. [PMID: 36362611 PMCID: PMC9656833 DOI: 10.3390/jcm11216382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Gastrointestinal bleeding (GIB) is one of most frequent and significant challenges for emergency physicians and gastroenterologists. Mortality for upper (U) GIB is high, especially in the elderly and comorbid patients. However, there is scant evidence in the literature concerning an assessment of warfarin (VKA) and direct oral anticoagulants (DOACs) in terms of upper gastrointestinal bleeding (UGIB) severity. Aims: Using data from two different settings (Italy and the UK), we aimed to compare the impact of VKA and DOACs on the severity of UGIB. Methods: Retrospective bicentric study on adult patients under VKA or DOACs admitted either to the emergency department at the Gemelli Hospital in Rome, Italy or University College Hospital in London, UK, with suspected UGIB from 01/01/2017 to 31/12/2018. Univariate analysis with Fisher’s exact test, and analysis of variance (ANOVA) were used. Results: 106 patients (62 M/44 F; mean age 71.2 ± 16.9 yrs) were enrolled and divided into the VKA group (N = 57; M: 56%, mean age: 64.9 ± 21.3 yrs) and the DOAC group (N = 49; M: 61%; mean age: 77.6 ± 12.5 yrs). At univariate analysis, the VKA group presented two endoscopic diagnoses more frequently than the DOAC group (26% vs. 8%, p < 0.05), were more frequently endoscopically treated (44% vs. 22%, p < 0.05), rescoped (12% vs. 2%, p = 0.048) and hospitalized (79% vs. 53%, p = 0.01) with a longer length of stay, LOS (VKA: 58% > 5 days vs. DOAC: 68% < 5 days, p = 0.01). There was no difference in terms of hemoglobin level on admission, however the requirement of blood transfusions was higher in the VKA group (60% vs. 41%, p = 0.041). One third of the VKA group showed a lower platelet count than the DOAC group (33% vs. 8%, p = 0.01). No statistically significant differences for in-hospital mortality were observed. For the ANOVA, the type of anticoagulant used was the only significant predictor of need to rescope (p = 0.041) and a significant co-predictor for a LOS > 5 days (p = 0.009; as well as cirrhosis, p = 0.013 and age, p = 0.005). Conclusions: Our outcomes revealed a more severe UGIB in patients on VKA, but the impact of comorbidities (i.e., more cirrhotic patients in the VKA group) cannot be disregarded. DOAC subgroup descriptive analysis, even though on a little cohort, showed higher bleeding severity for rivaroxaban.
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