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Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
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Venous popliteal entrapment syndrome.
Christine K Chen1, Marcin Kolber1
1Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Cardiovascular Diagnosis and Therapy
|November 24, 2021
Summary
Popliteal vein entrapment, a rare cause of lower extremity swelling, often goes undiagnosed. Early diagnosis via ultrasound or MRI is crucial for timely management of this popliteal entrapment syndrome variant.
Area of Science:
- Vascular Surgery
- Diagnostic Imaging
- Anatomy
Background:
- Popliteal entrapment syndrome (PES) involves neurovascular bundle compression in the popliteal fossa.
- Popliteal artery entrapment is common, but popliteal vein entrapment is a rare, often missed, variation.
- Etiologies include muscular anomalies, cysts, fibrous bands, or hypertrophy within the popliteal fossa.
Purpose of the Study:
- To highlight the importance of considering popliteal vein entrapment in unexplained lower extremity swelling.
- To review diagnostic modalities and management strategies for popliteal vein entrapment.
Main Methods:
- Literature review of popliteal vein entrapment causes, diagnosis, and treatment.
- Discussion of diagnostic tools including ultrasound, venography, and MRI.
- Overview of management options from conservative to surgical interventions.
Main Results:
- Popliteal vein entrapment can mimic deep vein thrombosis, necessitating specific diagnostic considerations.
- Ultrasound with dynamic maneuvers is the initial diagnostic test.
- MRI provides noninvasive diagnosis and etiological evaluation, while venography remains the gold standard.
Conclusions:
- Increased awareness of popliteal vein entrapment is needed for patients with unexplained lower extremity symptoms.
- A multi-modal diagnostic approach including advanced imaging is essential.
- Management strategies should be tailored to symptom severity and etiological factors, with endovascular options available.
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