Risk assessment of venous thromboembolism in hospitalized medical patients

Alex C. Spyropoulos

Research output: Contribution to journalReview articlepeer-review

18 Scopus citations


Purpose of review: The aim is to provide a concise review of risk assessment models that stratify hospitalized acutely ill medical patients at risk of venous thromboembolism (VTE). Recent findings: Risk-assessment models (RAMs) for hospitalized medical patients at risk for VTE prior to 2005 attempted to identify at-risk patients using a point system or binary yes/no approach as to the existence of exposing (acute medical illness) or predisposing (genetic or clinical characteristic) risk factors for VTE. These RAMs were derived from data predominately from patient subgroups within randomized controlled trials and were cumbersome, not subject to rigorous validation, and were based on limited evidence of how these risk factors interacted in a quantitative manner. Recently, simplified RAMs have been proposed that have included this patient group. The RAMs are composed of various point systems and a threshold, which then would identify at-risk patient groups that would benefit from thromboprophylaxis. Although some of the point systems have been derived intuitively, they have been validated in large patient cohorts either prospectively or retrospectively and have shown good sensitivity. The presence of malignancy, prior VTE, hypercoagulability, advanced age and immobility all conferred increased risk of VTE during hospitalization or in the posthospital discharge period in the various models. Summary: Simple RAMs based on point systems to predict risk of VTE for the hospitalized medical patient have been validated that include either exposing or predisposing risk factors for VTE. It is hoped that these RAMs may identify acutely ill medical patients with additional characteristics that do not easily fit into group-specific thromboembolic risk assessment categories as currently proposed by international clinical guidelines.

Original languageEnglish
Pages (from-to)419-425
Number of pages7
JournalCurrent Opinion in Pulmonary Medicine
Issue number5
StatePublished - Sep 2010
Externally publishedYes


  • hospitalized
  • medical patient
  • risk assessment models
  • venous thromboembolism


Dive into the research topics of 'Risk assessment of venous thromboembolism in hospitalized medical patients'. Together they form a unique fingerprint.

Cite this