2026-06-01T01:19:43Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1292712025-12-19T00:59:39Zcom_20.500.14352_14col_20.500.14352_15

COVID-19-associated venous thromboembolism: risk of recurrence and major bleeding. Demelo Rodríguez, Pablo Alonso Beato, Rubén Jara Palomares, Luis Galeano Valle, Francisco BuraR iviere, Alessandra Visonà, Adriana Iria, Francisco Vidal, Gemma López Ruiz, Antonio Monreal, Manuel Anticoagulants COVID-19 Hemorrhage Pulmonary embolism Venous thromboembolism Ciencias Biomédicas 32 Ciencias Médicas Background Complications under anticoagulant treatment in patients with COVID-19-associated venous thromboembolism (VTE) have not been consistently reported. Objectives This study aimed to compare the 90-day rates of VTE recurrences and major bleeding in patients with COVID-19-associated VTE versus those with VTE without COVID-19. Methods We used the RIETE registry to compare the 3-month outcomes in patients with COVID-19-associated VTE versus those with VTE without COVID-19. Results The study included 1,747 patients with COVID-19-associated VTE and 8,711 with VTE without COVID-19. Patients with COVID-19-associated VTE were more likely to be hospitalized at baseline and to present with pulmonary embolism. During the first 90 days, 123 patients (1.17%) developed VTE recurrences, and 266 (2.54%) experienced major bleeding. Patients with COVID-19-associated VTE had a similar rate of VTE recurrences (0.9% vs 1.2%) but a higher rate of major bleeding (4.6% vs 2.1%; P < .001) than those without COVID-19. Multivariable analysis adjusted for competing risks showed that patients with COVID-19-associated VTE had an increased risk of major bleeding (subhazard ratio, 1.395; 95% confidence interval, 1.037-1.877). The 30-day mortality after major bleeding was 26.3% in patients with COVID-19-associated VTE and 17.7% in those without COVID-19. Conclusion Patients with COVID-19-associated VTE had a 5-fold higher rate of major bleeding than VTE recurrences during the first 90 days of anticoagulation. In VTE patients without COVID-19, both rates were similar. These findings highlight the importance of carefully monitoring and optimizing anticoagulation in these patients. Depto. de Medicina Fac. de Medicina TRUE pub 2025-12-18T08:21:33Z 2025-12-18T08:21:33Z 2023-09-20 journal article VoR https://hdl.handle.net/20.500.14352/129271 2475-0379 10.1016/j.rpth.2023.102206 eng Demelo-Rodríguez P, Alonso-Beato R, Jara-Palomares L, Galeano-Valle F, Bura-Riviere A, Visonà A, Francisco I, Vidal G, López-Ruiz A, Monreal M; RIETE Investigators. COVID-19-associated venous thromboembolism: risk of recurrence and major bleeding. Res Pract Thromb Haemost. 2023;7(7):102206. doi: 10.1016/j.rpth.2023.102206. PMID: 37840687; PMCID: PMC10569976. Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ open access application/pdf Elsevier