What is the difference between TEVAR and EVAR?
Endovascular aortic aneurysm repair (EVAR) is a surgery used to treat an abdominal aortic aneurysm (AAA). For a patient with a thoracic aortic aneurysm (aneurysm in the chest area), the procedure is termed thoracic endovascular aortic aneurysm repair (TEVAR).
What is a Type B aortic dissection?
Aortic dissections are classified into two types: type B dissection involves a tear in the descending part of the aorta and may extend into the abdomen, whereas type A dissection develops in the ascending part of the aorta just as it branches off the heart.
Is TEVAR major surgery?
TEVAR is a minimally invasive surgery. That means it is done with a small cut (incision). With TEVAR, a device called a stent graft is used to reinforce the aneurysm.
What is TEVAR surgery?
Thoracic Endovascular Aortic Repair (TEVAR) is a minimally invasive procedure to repair the major blood vessel in the body, called the aorta. The aorta exits the heart and carries blood to all the organs and the rest of the body.
How is a TEVAR performed?
During TEVAR, our doctors fit a stent (fabric-covered, metal mesh tube) inside the damaged part of the aorta to provide reinforcement. They place the stent using a thin tube (catheter) inserted through an artery in the groin. Initially, the stent is collapsed. Once the stent is in place, the doctor expands it.
Who performs TEVAR?
Background: Endovascular aneurysm repair (EVAR) and Thoracic endovascular aortic repair (TEVAR) are commonly performed by interventional radiologists, cardiologists, general surgeons, cardiothoracic surgeons, and vascular surgeons, with each specialty having differences in residency structure, operative experience, and …
What is the survival rate for type B aortic dissection?
Short- and long-term prognosis after discharge from the hospital for acute type B dissection remains unclear. Previous studies are inconsistent and have reported survival rates between 56% and 92% at 1 year and 48% to 82% at 5 years.
Does Type B aortic dissection require surgery?
Complicated type B dissection — Endovascular or surgical intervention is required for all patients who develop complications at any time.
Who is a candidate for TEVAR?
Patients with the following conditions are considered candidates for TEVAR: Thoracic aortic aneurysms that are large or growing rapidly. Type B dissections (those in the descending thoracic aorta) that cannot be managed with medication therapy. An aortic tear due to traumatic injury.
How do you do TEVAR?
What is a type B aortic dissection?
Type B Aortic Dissections: Current Guidelines for Treatment Stanford type B aortic dissections (TBADs) involve the descending aorta and can present with complications, including malperfusion syndrome or aortic rupture, which are associated with significant morbidity and mortality if left untreated.
What is the Stanford classification of aortic tear?
The Stanford classification is divided into two groups, A and B, depending on whether the ascending aorta is involved. A – involves the ascending aorta and/or aortic arch, and possibly the descending aorta. The tear can originate in the ascending aorta, the aortic arch, or more rarely, in the descending aorta. It includes DeBakey types I and II.
What is the taxonomy of aortic dissection?
The Dissect taxonomy of aortic dissection not only takes into account the time frame (acute, subacute and chronic) but also the location of the intimal tear, the size of the aorta, the segmental extent of aortic involvement, the presence of complications, and the status of the false lumen (patent, partially or completely thrombosed) (3).
What is DeBakey type 1 aorta?
DeBakey 1 Type I – originates in ascending aorta, and propagates at least to the aortic arch and often beyond it distally. 2 Type II – originates in the ascending aorta and is confined to it. 3 Type III – originates in the descending aorta and rarely extends proximally, but will extend distally.