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Technical Note The Journal for Vascular Ultrasound 39(2):81–82, 2015 Preoperative Lower Extremity Duplex Exam for Varicose Veins: A Technologist’s Perspective Tricia Duffi cy Cary, RT-R, RDMS, RVT Introduction vary according to the source. The values used in our lab are as follows: Until recently, varicose vein surgery was primarily limited to an invasive surgical procedure called “ligation Mild refl ux: 0.5–4 s and stripping” of the great saphenous vein (GSV), and Moderate refl ux: 5–9 s its tributaries. However, over the past 15 years, the Severe refl ux: greater than 10 s fi eld of phlebology has witnessed tremendous growth For many reasons, it is helpful to use the longest due to new technologies that are minimally invasive sweep speed possible when testing for venous refl ux and can be performed in an outpatient setting. We see (Figure 1). First, this allows one image to show aug- such a wide variety of patients from having no visible mentation, valsalva, and normal respiration. veins at all to the very tortuous and raised veins covering Second, the severity of the refl ux is obtained much much of the lower extremity. Both groups usually easier even though the refl ux may exceed
Journal for Vascular Ultrasound – SAGE
Published: Jun 1, 2015
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