Date:3/10/2009

possible movement of the graft after treatment or persistent blood flow into the aneurysm, which resumes the risk of its growth or rupture. Also, the graft must be monitored to ensure its continued function, and endoleaks may occur, causing blood to flow outside the endovascular graft. Researchers noted that 13 patients (2.8 percent) needed to be treated for this latter complication. The overall 30-day mortality rate for endovascular aneurysm repair was 3.3 percent, compared to open surgery, which has a high associated mortality rate (ranging from 2-10.6 percent). Additionally, researchers found that most complications were detected within the first three months after repair, and that it was "rare" for CT scans to detect complications after that period of time. "This suggests that CT surveillance protocols are not justified; if a three-month surveillance scan doesn't demonstrate any abnormalities, then patients could be followed with routine ultrasound scanning to monitor for complications," he added. In total, secondary interventions were performed in 33 patients (7.2 percent), of which six (1.3 percent) were CT scan surveillance detected.

"It is remarkable in my eyes that the 'silent killer,' abdominal aortic aneurysm, can be treated successfully by a minimally invasive procedure that eliminates the need to undergo a large abdominal incision from surgery or to clamp the aorta, the main artery from the heart, which can create significant stress to the heart," added Sabharwal. "We have disproved myths about the durability and effectiveness of minimally invasive endovascular aneurysm repair. Our results, following patients over the past eight years, contradict reports of high rates of secondary interventions coupled with the need for prolonged CT scan surveillance," he said. "Endovascular repair reduces the risk of surgery, the amount of pain and the number of complications, getting patients back to normal health more quickly than surgery. Its recove
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SOURCE Society of Interventional Radiology Copyright©2009 PR Newswire. All rights reserved

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