Technique of Endovascular Therapy

Endovascular coil is now a widely used technique for intrancranial aneurisms. An International Subarachnoid Aneurysm mental test (ISAT), a multicenter, randomized clinical attempt comparing neurosurgical snippet with endovascular coiling in patients with ruptured intracranial aneurysms suitable for either treatment began in 1997 and recruitment stopped in 2002, but followup continues for five years after the procedures were carried out, so the final results atomic number 18 not yet in. However, preliminary results show a heady advantage of endovascular coiling over neurosurgical techniques for treatment of intracranial aneurysms.

Endovascular coiling is a method for treating aneurysms which does not require open process because real time fluoroscopic imaging is used to visualize the vascular system and treat the aneurysm from within the blood watercraft (Brain). Intracranial aneurysms are treated by inserting a catheter into the femoral artery and navigating it through the vascular system to the site of the aneurysm in the head. The procedure is d star either under global anesthesia or under light sedation. Thi

There has so far been no multicenter trial of these two procedures for unruptured intracranial aneurysms, but independent studies from different centers pay shown similar results (Brain).

They have also shown that: clean hospital remain for patients treated with endovascular coiling are half those of patients treated by surgical clipping; after treatment, the patients treated with endovascular coiling story only one quarter the number of new disabilities as reported by surgical patients; and one study showed that the average recovery time for patients treated with endovascular coiling was 27 days, compared to one year for surgically treated patients.

The ISAT study showed that in patients as suited to both methods of treatment for ruptured intracranial aneurysms, endovascular coiling produced significantly better results than surgery when comparing survival without disability after one year (Brain; International 1269). The relative risk of close or disability for patients undergoing endovascular coiling was 22.6 percent less at one year than for patients undergoing surgery.

n, flexible platinum coils are travel through the catheter into the aneurysm
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