FDA Approves Medtronic, Inc. Stent Graft for Aortic Transection Repair
Published: Nov 15, 2012
The second leading cause of traumatic death after head injuries, transection of the thoracic aorta represents a dire medical emergency in which the upper area of the body's main artery tears due to extreme force to the chest, usually the result of motor vehicle accidents, elevated falls or other high-impact deceleration episodes.
The Valiant stent graft, a tubular medical device consisting of a specially woven fabric sewn onto a flexible wire-mesh frame, can now be used in U.S. clinical practice to stabilize bleeding from descending thoracic aortic transections as an alternative to invasive surgery.
Previously approved by the FDA for the endovascular repair of aneurysms and penetrating ulcers of the descending thoracic aorta, the Valiant Captivia stent graft system has been widely available in the United States since May 2012.
The device is implanted in a minimally invasive procedure that uses a catheter inserted into the femoral artery, located in the groin. This technique requires only a small incision to access the aorta as opposed to larger incisions required for open surgery.
Compressed inside the delivery system, the device passes through several arteries in the abdomen and up the aorta to the location of the damaged area. By turning a mechanism on the handle of the delivery system, the stent graft flowers open from top to bottom, creating a new path for blood flow and reducing the risk of rupture, a complication that usually results in death.
The new indication for thoracic aortic transections followed the FDA's review of the results of a clinical study called the RESCUE trial, which enrolled 50 patients across 20 U.S. and Canadian sites and met its primary endpoint with a 30-day all-cause mortality rate of 8.0 percent. Six-month results from the RESCUE trial will be presented later this week in New York to attendees of the VEITHsymposium, which begins on Wednesday.
"This new indication of the Valiant Captivia stent graft system reduces the morbidity and mortality rates associated with surgical repair of transected aortas," explained Dr. Rodney White, chief of vascular surgery at Harbor-UCLA Medical Center in Torrance, Calif., and the principal investigator of the RESCUE trial. "When surgery is the only other option for repairing an aortic transection, the Valiant Captivia system can literally be a life-saver."
Medtronic stent grafts have been used to treat approximately 300,000 patients worldwide. Long-standing market leaders in the product category, the company's global portfolio includes the Endurant II AAA and Valiant Captivia stent graft systems.
"Our vision is for endovascular repair to be applicable to more patients," explained Tony Semedo, vice president and general manager of Medtronic's Endovascular Therapies business. "With this new indication for the Valiant Captivia system in the United States, that vision comes into sharper focus."
In collaboration with leading clinicians, researchers and scientists worldwide, Medtronic offers the broadest range of innovative medical technology for the interventional and surgical treatment of cardiovascular disease and cardiac arrhythmias. The company strives to offer products and services that deliver clinical and economic value to healthcare consumers and providers around the world.
Medtronic, Inc. (www.medtronic.com), headquartered in Minneapolis, is the global leader in medical technology -- alleviating pain, restoring health and extending life for millions of people around the world.
Any forward-looking statements are subject to risks and uncertainties such as those described in Medtronic's periodic reports on file with the Securities and Exchange Commission. Actual results may differ materially from anticipated results.