The expanded size matrix enables physicians to treat thoracic pathologies in tapered aortas, increasing the configuration possibilities by 30 percent to allow for effective treatment of a wider range of patient anatomies.
This allows optimal graft sizing that can lead to better procedural outcomes for patients with dissected aortas.
On March 23, the Food and Drug Administration approved the Gore TAG endoprosthesis for repair of aneurysms in the descending thoracic aorta
01 to 1 mM showed dose-dependent relaxation of the aorta contracted by treatment with prostaglandin [F.
An aldehyde component in Chinese medicine, Cinnamomi cortex, was reported to cause vasodilatation in the aorta isolated from spontaneously hypertensive rat (Kasahara et al.
Briefly, after Nembutal over-dose of the cockerels, aortas
were excised, fixed in buffered formalin, cut into 5-mm segments, embedded, sectioned, and stained with hematoxylin and eosin.
The size of lesions in the arch and abdominal aorta
increased in a linear fashion with age in both groups, indicating that formation of these lesions was a continuous process.
hardens naturally with age, but a more elastic aorta
is beneficial because it conducts blood smoothly from the heart and puts less stress on other organs.
Acute aortic dissections occur when the wall of the aorta
Croft of the University of Western Australia in Perth monitored the concentrations of three markers of oxidized fat in blood and tissue of the aorta
, the large artery leaving the heart.
The AneuRx AAA Stent Graft System, approved for use in the United States in 1999, is used in the treatment of abdominal aortic aneurysms (AAAs), a bulge or ballooning that forms in the wall of the aorta
that can be fatal if left untreated.
Hearts with a single aorta
tend to be more efficient at delivering oxygen to the body, says Michael K.
They transplanted aortas
in 12 primates: six received sirolimus throughout the trial while six received a placebo.
Several of the dogs have lived four or five years since their transplants and have aortas
indistinguishable from those of nongrafted dogs, Badylak says.
If that study similarly turns up mutations responsible for weak aortas
, clinicians might one day find it useful to screen relatives of aneurysm victims for signs of a genetic predisposition to this life-threatening condition, Prockop says.