PO28 | Long term effectiveness and safety of venous thromboembolism with fondaparinux: data from the start registry: I.M. Palumbo1, E. Valeriani1,2, A. Pannunzio1, S. Marucci3, D. Menichelli1, D. Pastori3,4, P. Pignatelli3 | 1Department of General Surgery and Surgical Specialty, Sapienza University of Roma; 2Department of Infectious Disease, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Roma; 3Department of Clinical Internal, Anaesthesiologic and Cardiovascular Sciences, Sapienza University of Roma, Roma; 4IRCCS NeuRomad, Pozzilli, Italy. Bleeding Thromb Vasc Biol [Internet]. 2025 Oct. 22 [cited 2026 Apr. 24];4(s1). Available from: https://www.btvb.org/btvb/article/view/289