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Study Data Shows VNUS ClosureFAST(TM) Catheter More than 96% Effective
Date:2/23/2008

Distinguished Physicians' Panel at American Venous Forum Presents Clinical Trial Results Confirming Efficacy, Greater Patient Comfort Than Laser

SAN JOSE, Calif., Feb. 23 /PRNewswire-FirstCall/ -- VNUS(R) Medical Technologies, Inc. (Nasdaq: VNUS), a worldwide leader in medical devices for the minimally invasive treatment of venous reflux disease, today presented positive clinical performance data for the VNUS ClosureFAST(TM) catheter at the 20th annual meeting of the American Venous Forum in Charleston, South Carolina. An international panel of distinguished physicians presented clinical trial results and perspectives affirming the efficacy and patient comfort levels of endovenous radiofrequency (RF) vein ablation using VNUS ClosureFAST. The ClosureFAST catheter, in a procedure often performed in the physician's office, heats and seals the diseased leg veins that cause the varicose veins afflicting more than 25 million Americans.

Prof. Dr. Thomas M. Proebstle of Heidelberg, Germany presented one-year followup data from a prospective, multi-center study of the efficacy of the ClosureFAST catheter. Raymond G. Makhoul, M.D., of Richmond, Virginia presented results from the RECOVERY trial, a single-blinded, randomized trial comparing the ClosureFAST catheter with endovenous laser ablation in 62 limbs.

"Our study found the ratio of efficacy to side effects of the VNUS ClosureFAST catheter to be superior to any previous endovenous ablation device," said Dr. Proebstle. "In 223 cases where the ClosureFAST device was used, 96.7% of the veins remained sealed after one year using Kaplan-Meier analysis. Of my patients, only one in five experienced postoperative pain due to study treatment. The excellent clinical outcome, the speed of treatment and the very low rate of side effects are certainly contributing to the enthusiastic embrace of this new device by the physician community."

"Our RECOVERY trial data makes it clear that radiofrequency vein ablation with the ClosureFAST device is superior to laser ablation in terms of patient comfort and satisfaction," said Dr. Makhoul. "27% of the ClosureFAST patients reported that the procedure itself was completely pain-free, compared with just 3% of the laser patients, and the need for postoperative analgesics was lower with ClosureFAST patients than with laser patients. We believe that the increased patient satisfaction with ClosureFAST is serving as a strong incentive for vascular physicians to transition to the ClosureFAST catheter from previous devices."

"The ClosureFAST device has significantly improved endothermal ablation with a smooth, deliberate, controlled and much swifter technique," said Robert F. Merchant, M.D., of Reno, Nevada, who has been performing RF vein ablation since 1999. "With some simple but elegant modifications to the technique -- proper positioning of the catheter away from the deep vein system, elevation of the leg -- we've been able to produce an even lower rate of complications and make the procedure even easier for the physician."

"Endovenous ablation of the great saphenous vein has revolutionized the way that we care for the venous patient," said Thomas F. O'Donnell Jr., M.D., of Boston, Massachusetts, who moderated the physicians' panel. "In our own practice I have seen confirmation of the results from Dr. Proebstle's multi- center ClosureFAST trial that this newer generation catheter is faster and easier to use. And the evidence-based results from the randomized, prospectively controlled trial by Dr. Makhoul and his colleagues confirms anecdotal experience that the RF catheter appears to be kinder and gentler without sacrificing effective durable closure rates."

"We believe the findings presented by the physicians paint a compelling picture of the VNUS ClosureFAST catheter as the new treatment of choice for patients who suffer from the pain, swelling and discomfort of varicose veins," said Brian E. Farley, President and CEO of VNUS. "The documented efficacy of the device and the overwhelmingly positive responses of physicians and patients regarding its ease of use, comfort and mild recovery are driving the rapid adoption of the ClosureFAST catheter, resulting in substantial benefits to varicose vein patients in over 40 countries."

ABOUT VNUS MEDICAL TECHNOLOGIES, INC.

Founded in 1995 and headquartered in San Jose, California, VNUS Medical Technologies (Nasdaq: VNUS) is a worldwide leader in medical devices for the minimally invasive treatment of venous reflux disease, a progressive condition that causes the varicose veins afflicting 25 million Americans. The pioneering company in the field, VNUS now offers the ClosureFAST system, which consists of a proprietary radiofrequency (RF) generator and proprietary disposable endovenous catheters and devices to close diseased veins through the application of temperature-controlled RF energy. VNUS devices have been used in more than 200,000 procedures worldwide. For more information, please visit http://www.vnus.com.

FORWARD-LOOKING STATEMENTS

In addition to statements of historical facts or statements of current conditions, VNUS has made forward-looking statements in this press release. Words such as "thinks" or "believes" or variations of such words and similar expressions, are intended to identify such forward-looking statements in this press release. Actual results may differ materially from current expectations based on a number of factors affecting VNUS' business, including, among other things, market acceptance of the ClosureFAST catheter, customer and physician preferences, and the experience of other physicians with our products. The reader is cautioned not to unduly rely on these forward-looking statements. VNUS expressly disclaims any intent or obligation to update these forward- looking statements except as required by law. Additional information concerning these and other risk factors can be found in press releases issued by VNUS and VNUS' periodic public filings with the Securities and Exchange Commission (SEC), including its Annual Report on Form 10-K filed with the SEC on March 30, 2007. Copies of VNUS' press releases and additional information about VNUS are available on the corporate website at http://www.vnus.com.


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SOURCE VNUS Medical Technologies, Inc.
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