Skip to Main content Skip to Navigation
Journal articles

Is it useful to also image the asymptomatic leg in patients with suspected deep vein thrombosis?

Abstract : Venous ultrasonography is the cornerstone of the diagnostic work-up in patients with suspected deep vein thrombosis (DVT). Significant variations exist in clinical practice between centers and/or countries, e.g. proximal vs. whole-leg ultrasound, serial tests vs. single test, and combination with clinical probability and D-dimer testing. Fewer data exist on the need for bilateral leg imaging. To assess the yield of bilateral leg ultrasonography in patients with suspected DVT. This was a retrospective cohort study of consecutive patients with clinically suspected DVT. A single whole-leg ultrasound scan was performed in all patients. We extracted information on demographics, risk factors, clinical signs, pretest probability, side of clinical suspicion, and ultrasound results. Among the 2804 included patients, 609 (21.8%) patients had a positive ultrasound finding. A total of 20 patients (0.8%; 95% confidence interval [CI] 0.5-1.2%) had a thrombus diagnosed in both the symptomatic leg and asymptomatic leg. Moreover, five patients (0.2%; 95% CI 0.1-0.5%) did not have a thrombus in the symptomatic leg but had a thrombus in the asymptomatic leg. Two of 2540 patients with unilateral symptoms had no proximal DVT in the symptomatic leg and a proximal DVT in the asymptomatic leg (0.08%; 95% CI 0.0-0.3%). In summary, systematic imaging of both legs in patients with suspected DVT has a very low yield, and therefore does not appear to be justified.
Document type :
Journal articles
Complete list of metadatas

https://hal.univ-brest.fr/hal-01275067
Contributor : Ghislaine Calvez <>
Submitted on : Tuesday, February 16, 2016 - 4:32:16 PM
Last modification on : Monday, September 23, 2019 - 3:52:04 PM

Identifiers

Collections

Citation

Grégoire Le Gal, Helia Robert-Ebadi, Marc Carrier, Clive Kearon, Henri Bounameaux, et al.. Is it useful to also image the asymptomatic leg in patients with suspected deep vein thrombosis?. Journal of Thrombosis and Haemostasis, Wiley, 2015, 13 (4), pp.563-6. ⟨10.1111/jth.12851⟩. ⟨hal-01275067⟩

Share

Metrics

Record views

128