TY - JOUR A1 - Langer, Florian A1 - Gerlach, Horst E. A1 - Schimke, Alexandra A1 - Heinken, Andreas A1 - Hoffmann, Ulrich A1 - Noppeney, Thomas A1 - Pittrow, David A1 - Klotsche, Jens A1 - Rabe, Eberhard A1 - Bauersachs, Rupert T1 - Clinical outcomes of cancer-associated isolated superficial vein thrombosis in daily practice T2 - Thrombosis research N2 - Highlights • In acute isolated SVT, the prevalence of cancer is almost 7 %. • Cancer increases the SVT-associated VTE risk at 3 and 12 months. • Cancer patients with isolated SVT may benefit from prolonged anticoagulation. Abstract Background: Despite significant progress in the understanding of paraneoplastic deep vein thrombosis (DVT) and pulmonary embolism (PE), little is known about the outcomes of cancer-associated superficial vein thrombosis (SVT) in daily practice. Methods: INSIGHTS-SVT was a prospective observational study on patients with acute isolated SVT. Primary outcome measure was symptomatic venous thromboembolism (VTE), a composite of DVT, PE, and SVT extension/recurrence, at 3 months. Clinically relevant bleeding was also assessed. Results: Of 1151 patients included, 6.7 % either had active cancer at baseline or were diagnosed with cancer during 12 months of follow-up. At 3 months, symptomatic VTE had occurred in 13.0 % and 5.4 % of cancer and non-cancer patients, respectively (HR 2.6, 95 % CI 1.3–5.0). Regarding secondary outcomes, cancer patients had increased risks of DVT and PE (HR 3.9, 95 % CI 1.3–11.8) and hospitalization due to VTE (HR 11.0, 95 % CI 2.5–49.0). The rate of clinically relevant bleeding was numerically higher in the cancer cohort (3.9 % vs 1.3 %, HR 3.1, 95 % CI 0.9–10.7). At 12 months, the primary composite outcome had occurred in 15.6 % and 11.9 % of cancer and non-cancer patients, respectively (HR 1.9, 95 % CI 1.0–3.5). After adjusting for additional risk factors, including age, history of DVT/PE and cardiovascular risk factors/diseases, the association of cancer with the primary outcome remained statistically significant. Conclusion: Cancer patients with isolated SVT are at significant risk of symptomatic VTE. While most events occur within 3 months, the VTE risk remains elevated up to one year of follow-up. ClinicalTrials.gov identifier: NCT02699151. KW - Superficial vein thrombosis KW - Malignancy KW - Cancer KW - Risk assessment KW - Observational KW - Venous thrombosis KW - Low-molecular-weight heparin KW - Fondaparinux KW - Treatment Y1 - 2022 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/78620 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-786201 SN - 0049-3848 VL - 220 SP - 145 EP - 152 PB - Elsevier CY - Amsterdam [u.a.] ER -