Key result
Among medical patients admitted to the hospital, the prevalence of asymptomatic deep vein thrombosis on admission was 5.5%, reaching 17.8% in patients over 80 years.
Observational (n=234)
No
There is a high prevalence of asymptomatic deep vein thrombosis on admission among elderly medical patients, highlighting the importance of VTE risk assessment in this population.
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May warrant enhanced VTE risk assessment on admission for elderly medical patients; leaves open whether routine screening improves outcomes.
The prevention of venous thromboembolism in medical patients remains questioned. All consecutive outpatients admitted in our medical unit were considered for inclusion in this study which aimed to estimate the prevalence of asymptomatic venous thrombosis on admission and the incidence during hospital stay. Exclusion criteria were: age <18 years, suspicion of venous thromboembolism, stay <4 days, ongoing anticoagulant therapy. Venous compression ultrasonography of the lower limbs was performed within 48 h. 234 patients were included. The prevalence of asymptomatic deep vein thrombosis on admission and the incidence during hospital follow-up were respectively 5.5% (95% confidence interval, 3.1 to 9.5%) and 2.6 per 1,000 person-days (95% confidence interval, 0.0 to 5.2). The prevalence and the incidence reached respectively 17.8% (95% confidence interval, 8.5 to 32.6%) and 6.0 per 1,000 person-days (95% confidence interval, 0.0 to 12.7) among patients over 80 years. A high prevalence of asymptomatic deep vein thrombosis on admission was suggested particularly among elderly medical patients.
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Oger et al. (2002) conducted an observational in Asymptomatic deep vein thrombosis (n=234). Medical hospital admission was evaluated on Prevalence of asymptomatic deep vein thrombosis on admission (95% CI 3.1 to 9.5). Among medical patients admitted to the hospital, the prevalence of asymptomatic deep vein thrombosis on admission was 5.5%, reaching 17.8% in patients over 80 years.
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