Treatment Patterns and Clinical Outcomes in Korean Cancer Patients With Venous Thromboembolism: A Retrospective Cohort Study
Authors
Soo-Mee Bang ; Jin-Hyoung Kang ; Min Hee Hong ; Jin-Seok Ahn ; So Yeon Oh ; Jin Ho Baek ; Yoon Ji Choi ; Seong Hoon Shin ; Young-Joo Kim ; Ha-Yeong Gil ; Hyung-Eun Park ; Juneyoung Lee ; Eun-Lyeong Park
Citation
CLINICAL AND APPLIED THROMBOSIS-HEMOSTASIS, Vol.27 : 1076029620979575, 2021-01
cancer ; direct oral anticoagulants ; low-molecular-weight heparin ; venous thromboembolism
Abstract
This study assessed epidemiologic data and clinical outcomes, including venous thromboembolism (VTE) recurrence and bleeding events, in patients with cancer-associated VTE, and assessed factors associated with clinical outcomes. Data were extracted from retrospective medical-chart review of adult patients diagnosed with cancer-associated deep vein thrombosis or pulmonary embolism who received anticoagulation treatment for ≥3 months. Patients were classified by: low-molecular-weight heparin (LMWH), direct oral anticoagulants (DOACs), and other anticoagulants. First VTE recurrence and bleeding events, and factors associated with their occurrence, were assessed during the initial 6 months of treatment. Overall, 623 patients (age: 63.7 ± 11.3 years, 49.3% male) were included (119, 132, and 372 patients in LMWH, DOACs and other anticoagulants groups, respectively). The cumulative 6-month incidence of VTE recurrence was 16.6% (total), 8.3% (LMWH), 16.7% (DOACs), and 20.7% (other); respective bleeding events were 22.5%, 11.0%, 12.3%, and 30.7%). VTE recurrence and bleeding rates differed only between LMWH and other anticoagulants (HR 2.4, 95% CI: 1.2-5.0 and 3.6, 1.9-6.8, respectively). These results highlight the importance of initial VTE treatment choice for preventing VTE recurrence and bleeding events. LMWH or DOACs for ≥3 months can be considered for effective VTE management in cancer patients.