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Updated: Jun 20, 2026
10:26
A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
A validation study of a retrospective venous thromboembolism risk scoring method
Vinita Bahl1, Hsou Mei Hu, Peter K Henke
1Department of Clinical Information & Decision Support Services, Office of Clinical Affairs, University of Michigan, Ann Arbor, MI 48109-5485, USA. vbahl@umich.edu
Annals of Surgery
|September 26, 2009
Summary
A validated retrospective scoring method accurately assesses venous thromboembolism (VTE) risk in surgical patients. This tool supports individualized VTE risk assessment for improved prophylaxis strategies.
Area of Science:
- Medical research
- Clinical epidemiology
- Surgical outcomes
Background:
- Venous thromboembolism (VTE) risk assessment is crucial for effective prophylaxis.
- Deep vein thrombosis and pulmonary embolism contribute to significant mortality and morbidity.
Purpose of the Study:
- To validate a retrospective VTE risk scoring method based on the Caprini risk assessment model.
- To evaluate the impact of VTE prophylaxis on risk prediction.
Main Methods:
- Retrospective analysis of 8216 inpatients from the National Surgical Quality Improvement Program.
- Logistic regression and bivariate probit models were used to identify VTE risk factors and assess prophylaxis adherence.
Main Results:
- The highest risk category comprised 52.1% of the study population, with a VTE incidence of 1.94%.
- Pregnancy/postpartum, recent sepsis, malignancy, VTE history, and central venous access were significant VTE predictors.
- A significant correlation was found between VTE probability and non-adherence to prophylaxis guidelines (rho = 0.299, P = 0.013).
Conclusions:
- The retrospective VTE risk scoring method is validated and reliable.
- Individualized patient risk assessment for VTE within 30 days post-surgery is supported.
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