NDLI: Isolated calf deep venous thrombosis: frequency on venous ultrasound and clinical characteristics

Content Provider	Springer Nature : BioMed Central
Author	Heller, Thomas Becher, Mattes Kröger, Jens-Christian Beller, Ebba Heller, Susanne Höft, Raimund Weber, Marc-André Meinel, Felix G.
Abstract	Background It remains controversial whether to include calf veins in the initial ultrasound evaluation of suspected deep venous thrombosis (DVT). We sought to investigate the frequency and clinical characteristics of isolated calf DVT. Materials and methods In this retrospective analysis, we investigated a cohort of 596 patients (median age 69 years, 52.3% women) who had been imaged with complete lower extremity venous duplex ultrasound for suspected acute DVT. Radiology reports were analyzed for the presence and localization of DVT. Clinical information was collected from patients’ electronic charts. Results DVT was found in 157 patients (26.3%), of which 74 patients (47.1%) had isolated calf DVT. Isolated calf DVTs were located in the posterior tibial veins (22 patients, 29.7%), peroneal veins (41 patients, 55.4%) and muscle veins (19 patients, 25.7%). There were no differences in age or sex between patients with isolated calf DVT and patients with proximal DVT. Isolated calf DVT was more commonly associated with leg pain (52.7% vs. 33.7%, p = 0.0234) and less commonly associated with subjective leg swelling (35.1% vs. 55.4%, p = 0.0158) and objectively measured difference in leg circumference (23% vs. 39.8%, p = 0.0268). D-Dimers were significantly lower in patients with isolated lower leg DVT (median 2.3 vs. 6.8 mg/L, p < 0.0001) compared to patients with proximal DVT. Conclusions Isolated calf DVT represents approximately half of DVT cases and has different clinical characteristics than proximal DVT.
Related Links	https://bmcemergmed.biomedcentral.com/counter/pdf/10.1186/s12873-021-00516-1.pdf
Ending Page	6
Page Count	6
Starting Page	1
File Format	HTM / HTML
DOI	10.1186/s12873-021-00516-1
Journal	BMC Emergency Medicine
Issue Number	1
Volume Number	21
Language	English
Publisher	BioMed Central
Publisher Date	2021-10-30
Access Restriction	Open
Subject Keyword	Emergency Medicine Medicine Public Health Deep venous thrombosis Duplex ultrasound Compression ultrasound Medicine/Public Health
Content Type	Text
Resource Type	Article
Subject	Emergency Medicine
Journal Impact Factor	2.3/2023
5-Year Journal Impact Factor	2.5/2023

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