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 Covered Stents Compared to Bare Metal Stents Treat Chronic Atherosclerotic Mesenteric Arterial Disease

Restenosis, recurrence, re-intervention and primary/secondary patency rates examined
June 8, 20120    Contact: Sue Crosson-Knutson    312-334-2311

WASHINGTON, D.C. - Vascular surgeons and researchers from the Mayo Clinic in Rochester, MN, and University of Tennessee at Chattanooga joined hands to compare outcomes of mesenteric angioplasty using percutaneous transluminal angioplasty and stenting (PTAS) with iCAST covered stents (Atrium, Hudson, NH) or bare metal stents in patients with chronic mesenteric ischemia (CMI). Their findings were released today at the 66th Vascular Annual Meeting presented by the Society for Vascular Surgery®. 

“We reviewed the clinical data of non-randomized 225 patients (65 male and 160 female; mean age 72±12 yrs) treated for CMI (2000-2010),” said Gustavo S. Oderich, MD, from the Mayo Clinic. “Outcomes were analyzed in patients who had primary intervention or re-intervention using bare metal stents (164 patients, 197 vessels) or covered stents (61 patients, 67 vessels). End-points were freedom from restenosis, recurrence and re-intervention, and primary and secondary patency rates.”

Patients in both groups had similar demographics, cardiovascular risk factors and extent of disease. Mean follow up was 27±12 months. Patients treated by covered stents had less restenosis, recurrences and reinterventions compared to those treated by bare metal stents, both in the primary intervention and in the re-intervention groups ((P<0.05). Primary patency at two years was significantly higher for covered stents compared to bare metal stents in the primary intervention group (91±6 vs. 60±5; P<0.003).
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