Pulmonary embolism: Epidemiology and registries.

Real-life data is important in understanding the needs of patients in routine clinical practice, particularly owing to the fact that almost a quarter of patients with venous thromoboembolism (VTE) have at least one exclusion criterion preventing their recruitment into randomized clinical trials. The Registro Informatizado de Enfermedad Trombo Embólica (RIETE) registry is an ongoing, international, multicentre, prospective registry of consecutive patients presenting with acute VTE. In this chapter, we summarized some of the most relevant data concerning the epidemiology of VTE in the RIETE registry.