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| The Closure® Procedure |
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The VNUS Closure procedure is a minimally invasive treatment alternative to traditional vein stripping surgery for venous reflux. Using the Closure system, physicians close diseased, large superficial veins such as the great saphenous vein. This is accomplished by inserting our proprietary catheter into a vein to directly heat the vein wall with temperature-controlled RF energy. Heating the vein wall causes collagen in the wall to shrink and the vein to close. The blood then naturally reroutes to healthy veins. |
Post-Treatment
48 hours 1 |
The Closure procedure provides the following benefits for patients and physicians:
- Minimally Invasive Outpatient Procedure. Closure catheters are inserted into the vein via a needle puncture in the lower leg, eliminating the need for groin surgery and general anesthesia. The Closure procedure can be performed using local anesthesia in a physician’s office, as well as in an outpatient hospital setting or surgicenter.
- Less Post-Operative Pain. The Closure procedure does not involve pulling the diseased vein from the thigh as with vein stripping surgery, or boiling blood to occlude a vein as with EVL. We believe this results in significantly less post-operative pain, faster healing and allows the early resumption of normal activities. Randomized comparative studies have shown that patients receiving the Closure procedure return to normal activity and work significantly faster than those receiving vein stripping. In an independent comparative trial of the Closure procedure versus EVL, patients treated using the Closure system in one leg and EVL in the other leg exhibited less pain and bruising in the leg treated with the Closure system.
- Excellent Clinical Outcomes. In a randomized comparative trial of the Closure procedure and vein stripping, the Closure procedure was found to be as effective as vein stripping at two years following treatment, with fewer side effects and faster recovery. A comparative trial versus EVL showed the Closure procedure exhibited greater efficacy and less post-operative bruising and pain.
- Safe and Controlled Procedure. The safety features of the Closure system are designed to ensure precise, consistent delivery of RF energy. Our system continuously monitors the temperature of the vein wall and adjusts energy delivery throughout the procedure to provide a high level of effectiveness and a low incidence of adverse events during recovery.
- Cosmetically Appealing. We believe that our Closure system results in less bruising and skin discoloration than vein stripping or EVL. Additionally, because the Closure procedure is catheter-based, it results in little or no scarring compared to vein stripping.
As with any medical procedure, you are encouraged to review all safety information associated with the procedure by consulting your physician.
To read what patients have said about the Closure procedure, click here. |
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1. Procedures performed at regional ACP Meeting, June 2001.
2. Data on File - VNUS Medical Technologies, Inc.
3. Lurie, F, et al.Prospective randomized study of endovenous radiofrequency obliteration (Closure procedure) versus ligation and stripping in a selected patient population (EVOLVeS Study), J Vasc Surg 2003; 38(2):207-14.
4. Merchant RF, DePalma RG, Kabnick LS. Endovascular obliteration of saphenous reflux: A multicenter study. J Vasc Surg 2002;35:1190-6
5. Weiss RA, et al. Controlled Radiofrequency Endovenous Occlusion Using a Unique Radiofrequency Catheter Under Duplex Guidance to Eliminate Saphenous Varicose Vein Reflux: A 2-Year Follow-up, Dermatologic Surgery, Jan 2002; 28:1: 38-42
6. Jones L, et al. Neovascularisation is the principal cause of varicose vein recurrence: results of a randomized trial of stripping the long saphenous vein, Eur J Vasc Endovasc Surg, 1996; 12: 442-445
7. Morrison N. Presented at the Union Internationale de Phlebologie, Rome, September 2001.
8. Pichot O, et al. Role of Duplex Imaging in Endovenous Obliteration for Primary Venous Insufficiency. J. Endovasc Ther 2000; 7:451-9.
9. Proebstle TM, et al. Endovenous Treatment of the Greater Saphenous Vein with a 940 nm Diode Laser: Thrombotic Occlusion after Endoluminal Thermal Damage by Laser Generated Steam Bubbles, J Vasc Surg 2002; 35: 729-736.
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