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标题: CoreValve Transcatheter Aortic Valve Replacement System [打印本页]
作者: shenxiu2 时间: 2009-12-14 14:20
标题: CoreValve Transcatheter Aortic Valve Replacement System
本帖最后由 shenxiu2 于 2009-12-14 16:00 编辑
Medtronic today presented findings from a European trial testing the effectiveness of the CoreValve ReValving system, a percutaneous aortic stenosis repair device, in a subclavian approach for people who were at risk if the femoral approach would have been used.
The data reported procedural success of 100 percent; 24-hour survival of 100 percent; and 30-day survival of 89 percent. The available 30-day analysis also demonstrated clinical improvement in heart failure symptoms with 76 percent of the patients gaining at least a one-stage NYHA class and one-third improving by at least two stages.
Medtronic’s market-leading CoreValve system was designed to allow the implant of a replacement heart valve in patients with aortic stenosis who are at high or prohibitive surgical risk. The system enables a catheter-based implant via a peripheral blood vessel, traditionally the femoral artery. A significant subset of patients, however, have compromised peripheral arteries, which prevents the use of the femoral approach. Uniquely, the delivery system of the CoreValve device is small enough to allow an alternative approach via the subclavian artery beneath the collar bone.
作者: shenxiu2 时间: 2009-12-14 15:56
1# shenxiu2
Percutaneous Aortic Valve Replacement
The Medtronic CoreValve® System is designed to replace a diseased native aortic heart valve without open heart surgery and without concomitant surgical removal of the failed native valve. The system is comprised of an aortic tissue valve on a self-expanding frame, an 18 French size delivery catheter, and a disposable loading system. Each component of the system has been designed to meet the requirements of a percutaneous implantation approach.
Since the early 1960s, valve replacement surgery has extended the lives of people with failing aortic heart valves. Valve replacement surgery currently requires accessing the chest and opening the heart. Unfortunately, many patients are simply too ill to be considered as candidates for this type of invasive surgery.
Working with leading interventional cardiologists and cardiac surgeons, the Medtronic CoreValve® System was designed to permit aortic valve replacement on a beating heart in a procedure that can be performed in the cardiac catheterization laboratory.
The latest advancements of this beating heart procedure have eliminated the need for special equipment and incisions required to access and support the heart. These advances make heart valve replacement available to patients previously ineligible for this life-saving therapy.
作者: shenxiu2 时间: 2009-12-14 16:08
标题: 经导管换 Aortic valve 心瓣手术
本帖最后由 shenxiu2 于 2009-12-14 16:32 编辑
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