15
Sep
It is not clear whether endovascular stent grafting is safe and effective in emergency treatment of acute type b aortic dissection. The morphology of the thoracic aorta, angled or kinked, at the level of the distal portion of the stent graft can promote sine development because of.
One patient had a type a dissecting aortic aneurysm with a primary tear in the ascend.
Stent graft for aortic dissection. The entry tear was located at the ascending aorta in 10 cases (debakey type i), the aortic arch in 14 cases and the distal aortic arch or proximal descending aorta in 21 cases in which the ascending aorta was also involved by the dissection. The indication for surgery was continuous pain or aneurysm development. It is not clear whether endovascular stent grafting is safe and effective in emergency treatment of acute type b aortic dissection.
On the other hand stent grafting for chronic. An optimal deployment with sealing of the graft was achieved in 95.3% (102/107) of the treated patients discharged in good condition within 6 days. Machii m(1), nishimaki h, isobe y, imai h, lin zb, yoshimura h.
Stent grafting for aortic dissection. We report the successful treatment of a patient with stanford type b aortic dissection, thrombosed type with. This maturing procedure is promising in the treatment of thrombosed, aggravated aortic dissection.
From january 2001 to january 2009, we treated 45 cases of stanford type a aortic dissection with endovascular stent grafting. In acute dissection, the aortic wall is more elastic, and it can adapt better to a stent graft than a fibrotic, calcified, and inelastic aortic membrane typical of the chronic dissection. One patient was diagnosed as type a dissection, 23 patients as chronic type b dissection, 1.
Endovascular aortic stent grafting (evar) is a minimally invasive technique, which is increasingly used in the treatment of aortic aneurysm and aortic dissection. As has been previously demonstrated in descending and abdominal aortic disease, stent graft treatment of ascending aortic dissections may evolve as an alternative to conventional surgical repair. Early intervention for primary entry makes excellent aortic remodeling and emergent stent grafting for complicated acute type b aortic dissection is supported as a class i.
The purpose of stent graft for aortic dissection is to terminate antegrade blood flow into the false lumen through primary entry. The other one was a new intima tear at the distal. (1)department of thoracic and cardiovascular surgery, kitasato university school of medicine, kanagawa, japan.
Aortic dissection with proximal stent grafts and distal bare stents thoracic endovascular aortic repair (tevar) has been widely used to treat aortic dissection in recent years. “chimney” parallel grafts are delivered by carotid artery cutdown into. Experimental stent graft placement for ascending aortic dissection is feasible in an in vitro model and achieves complete closure of the false lumen.
Endovascular stent grafting is developing as an alternative treatment mainly for chronic stages of type b aortic dissection. One day after admission, dissection of the left main coronary artery accompanied by severe myocardial ischemia prompted palmaz stent placement. One or more uncovered stents may be added to support and expand the true lumen in order to improve blood flow to your abdominal organs, pelvis and legs.
The false lumen completely disappeared within 1 year after surgery. The morphology of the thoracic aorta, angled or kinked, at the level of the distal portion of the stent graft can promote sine development because of. Watch this video to hear surgeons discuss how they oversize stent grafts to treat dissection patients.
Two device related complications happened in two patients. Tevar or stent grafting is a minimally invasive treatment for an aortic dissection or aneurysm. One patient had a type a dissecting aortic aneurysm with a primary tear in the ascend.
Our study was designed to further verify the feasibility, the efficacy, and safety of this technique.