About the Procedure
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An abnormal dilatation of a blood vessel is termed aneurysm . One of the common locations for aneurysm development is the aorta. The aorta is the main blood vessel of the body and exits out of the heart to supply all the organs of the body through several branches . Its like a big tree trunk which gives rise to branches.
An abnormal dilatation of a blood vessel is termed aneurysm . One of the common locations for aneurysm development is the aorta.
The aorta is the main blood vessel of the body and exits out of the heart to supply all the organs of the body through several branches . Its like a big tree trunk which gives rise to branches.
Aneurysms can arise not only from the aorta but also from the several branches that arise from it.
Aneurysms can be further divided into Arch when it arises frown the initial 10 cms. Thoracic when it arises from the segment beyond the arch but within the thoracic cavity and Abdominal which is further classified as supra and infra-renal.
Aneurysms disease is dangerous since they can rupture leading to sudden death.
Another form of dilatation of the aorta is dissecting aneurysm where there is a tear in the inner layer and blood leaks between the layers of the aorta resulting in dilatation and rupture.
Aneurysms of the aorta may require no surgical treatment when it measures less than 5 cms and are usually managed by keeping the blood pressure under control and surveillance but when they cross the 5 cm mark they are carry a very high risk of rupture and must be treated at the earliest.
Surgery continues to be the gold standard for aneurysm where the aneurysm is by -passed with a graft or in certain location the whole segment is replaced . However when the patient is above 70 years and has associated co morbid conditions like hypertension , diabetes and coronary artery disease the risk of surgery increases significantly.
Endovascular therapy is mminimally invasive however a small incision has to be made in the groin on one side to allow access to a blood vessel. Its shown to be an excellent alternative for infra-renal aneurysms and is the treatment of choice for thoracic aneurysms.
The technique involves taking a tube loaded with a graft which is specially designed for the size and location of the aneurysm .Once the target site is reached under imaging guidance the stent graft is released to exclude the aneurysm . At times a second or third device may be deployed to complete the procedure.Following the procedure the patient may have to be in the hospital for three to four days and will require regular monitoring including CT scans to ensure that the device is functioning well.
Like most endovascular procedure the complications are less than open surgery . However the patient can have an arterial tear during the procedure , the graft can occlude , stoke specially of the spinal cord can occur leading to paralysis . Late complication include a leak in the graft and recurrence of aneurysm.
Aortic Stent graft