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Risk factors for deep vein thrombosis in inpatients aged 65 and older: a case-control multicenter study
Sébastien Weill-Engerer1, Sylvie Meaume, Amina Lahlou
1Department of Geriatrics, Hôpital Rothschild, Paris, France.
Journal of the American Geriatrics Society
|July 24, 2004
Summary
This study identified key risk factors for deep vein thrombosis (DVT) in elderly hospital patients, including immobility and heart failure. A high-risk score can predict DVT development, guiding preventive treatment decisions.
Area of Science:
- Geriatric Medicine
- Vascular Medicine
- Clinical Risk Assessment
Background:
- Deep vein thrombosis (DVT) is a significant concern in hospitalized geriatric patients.
- Identifying independent risk factors is crucial for effective prevention strategies.
Purpose of the Study:
- To pinpoint independent risk factors for symptomatic DVT in elderly inpatients.
- To develop a tool for identifying high-risk geriatric patients who would benefit from preventive treatments.
Main Methods:
- A multicenter, hospital-based case-control study with prospective data collection.
- Logistic regression analysis was used to compare 310 DVT patients with 310 controls.
- A risk score was developed based on identified independent risk factors.
Main Results:
- Six independent risk factors for DVT were identified: restricted mobility, age 75+, history of DVT/pulmonary embolism, acute heart failure, chronic lower limb edema, and lower limb paresis/paralysis.
- A risk score of 8 or higher indicated an 88.7% probability of symptomatic DVT.
- Odds ratios for identified risk factors ranged from 1.5 to 5.64.
Conclusions:
- The identified risk factors and scoring system can help stratify DVT risk in hospitalized elderly patients.
- Preventive DVT treatments should be considered for geriatric patients presenting with these risk factors.