A number of VTE patients are often excluded from randomized clinical trials (pregnancy, renal insufficiency or high risk of bleeding). Thus, there is few evidence on what would be the best therapeutic approach for these patients.
The Registro Informatizado de Enfermedad TromboEmbólica (RIETE Registry) is an ongoing, international, prospective registry of consecutive patients with acute VTE designed to gather and analyze data on treatment patterns and outcomes in patients with acute VTE. Strengths of the registry include that a large number of consecutive unselected patients are enrolled, and a large number of variables are considered.
Registry data provide information on the epidemiology of VTE in different countries, and might be useful to monitor the efficacy and safety of the new anticoagulants in a near future.