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Drozdinsky G, Arad N, Spectre G, Livneh N, Poran I, Raanani P, Falanga A, Ten Cate H, Gafter-Gvili A, Leader A. Anticoagulation in cancer patients with atrial fibrillation and grade 3-4 thrombocytopenia. Thromb Res 2024; 235:92-97. [PMID: 38308884 DOI: 10.1016/j.thromres.2024.01.012] [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: 09/25/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/05/2024]
Abstract
INTRODUCTION Atrial fibrillation or flutter (AF) is prevalent in cancer patients. Many of these patients have an indication for anticoagulation (AC) but are also at risk for developing chemotherapy-induced thrombocytopenia. There are scarce data regarding management of AC and risk of bleeding and thrombosis in cancer patients with AF and thrombocytopenia. AIM To assess anticoagulation management and incidence of bleeding and arterial thromboembolism (ATE) in cancer patients with AF and grade 3-4 thrombocytopenia (platelets <50 × 109/L). METHODS A retrospective cohort study included adults with active cancer, grade 3-4 thrombocytopenia and AF with CHA2DS2-VASc score ≥ 1. Patients were stratified according to AC discontinuation (No-AC) or continuation (Continue-AC) when platelets dropped below 50 × 109/L and followed for 30 days. The study outcomes were ATE (ischemic stroke, transient ischemic attack or systemic emboli) and major bleeding. Cox proportional hazards model was used to calculate hazard ratios (HR) with death as a competing risk (Fine and Gray model). RESULTS The cohort included 131 patients; 90 in the No-AC group and 41 in the Continue-AC group. Patient characteristics were balanced between the groups. The 30-day cumulative incidence of ATE was 2 % [95 % CI 0.4 %-7 %] in the No-AC group and 2 % [0.2 %-11 %] in the Continue-AC group (HR 0.92 [95 % CI 0.09-9.88]). The 30-day cumulative incidence of major bleeding was 7.8 % [95 % CI 3.40 %-14.52 %] and 2.44 % [95 % CI 0.18 %-11.22 %] in the No-AC and Continue-AC groups, respectively (HR 3.29 [95 % CI 0.42-26.04]). CONCLUSIONS The high rate of bleeding and low rate of ATE in thrombocytopenic cancer patients with AF suggests that holding AC during time-limited periods may be a reasonable approach.
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Affiliation(s)
- Genady Drozdinsky
- Department of Medicine E, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Noam Arad
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galia Spectre
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
| | - Nir Livneh
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Otolaryngology Head and Neck Surgery, Sheba Medical Center, Tel Hashomer, Israel
| | - Itamar Poran
- Department of Medicine E, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Pia Raanani
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
| | - Anna Falanga
- University of Milano-Bicocca, Department of Medicine, Milan, Italy; Immunohematology and Transfusion Medicine Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Hugo Ten Cate
- Thrombosis Expert Center, Maastricht University Medical Center, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands; Center for Thrombosis and Hemostasis, Gutenberg University Medical Center, Mainz, Germany
| | - Anat Gafter-Gvili
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel; Department of Medicine A, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Avi Leader
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel; Hematology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, US; Weill Cornell Medical College, New York, NY, USA.
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EHA Guidelines on Management of Antithrombotic Treatments in Thrombocytopenic Patients With Cancer. Hemasphere 2022; 6:e750. [PMID: 35924068 PMCID: PMC9281983 DOI: 10.1097/hs9.0000000000000750] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/01/2022] [Indexed: 01/19/2023] Open
Abstract
In cancer patients, thrombocytopenia can result from bone marrow infiltration or from anticancer medications and represents an important limitation for the use of antithrombotic treatments, including anticoagulant, antiplatelet, and fibrinolytic agents. These drugs are often required for prevention or treatment of cancer-associated thrombosis or for cardioembolic prevention in atrial fibrillation in an increasingly older cancer population. Data indicate that cancer remains an independent risk factor for thrombosis even in case of thrombocytopenia, since mild-to-moderate thrombocytopenia does not protect against arterial or venous thrombosis. In addition, cancer patients are at increased risk of antithrombotic drug-associated bleeding, further complicated by thrombocytopenia and acquired hemostatic defects. Furthermore, some anticancer treatments are associated with increased thrombotic risk and may generate interactions affecting the effectiveness or safety of antithrombotic drugs. In this complex scenario, the European Hematology Association in collaboration with the European Society of Cardiology has produced this scientific document to provide a clinical practice guideline to help clinicians in the management of patients with cancer and thrombocytopenia. The Guidelines focus on adult patients with active cancer and a clear indication for anticoagulation, single or dual antiplatelet therapy, their combination, or reperfusion therapy, who have concurrent thrombocytopenia because of either malignancy or anticancer medications. The level of evidence and the strength of the recommendations were discussed according to a Delphi procedure and graded according to the Oxford Centre for Evidence-Based Medicine.
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Khan MS, Ahmad M. Anticoagulation Challenges in Cancer Patients. JACC CardioOncol 2021; 3:339-340. [PMID: 34396347 PMCID: PMC8352118 DOI: 10.1016/j.jaccao.2021.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Muhammad S.Y. Khan
- Royal Surrey County Hospital, Egerton Road, Guildford GU2 7XX, United Kingdom
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