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Endovascular coiling is an endovascular treatment for intracranial aneurysms and bleeding throughout the body. The procedure reduces blood circulation to an aneurysm or blood vessel through the implantation of detachable platinum wires, with the clinician inserting one or more into the blood vessel or aneurysm until it is determined that blood flow is no longer occurring within the space.
Clipping is a surgical procedure performed to treat an aneurysm. If the aneurysm is intracranial, a craniotomy is performed, and afterwards an Elgiloy (Phynox) or titanium Sugita clip is affixed around the aneurysm's neck. Surgical clipping was introduced by Walter Dandy of the Johns Hopkins Hospital in 1937.
The coil induces clotting within the aneurysm, which reduces the risk of rupture. Multiple coils may be used depending on the size. [ 33 ] Imaging studies ( DSA , CTA , or MRA ) help characterize the aneurysm to decide the best course of treatment, whether endovascular coiling or surgical clipping.
An endoleak is a leak into the aneurysm sac after endovascular repair. Five types of endoleaks exist: [14] Type I - Perigraft leakage at proximal or distal graft attachment sites (near the renal and iliac arteries) Type II - Retrograde flow to the aneurysm sac from branches such as the lumbar and inferior mesenteric arteries. Type II endoleaks ...
Clipping requires a craniotomy (opening of the skull) to locate the aneurysm, followed by the placement of clips around the neck of the aneurysm. Coiling is performed through the large blood vessels (endovascularly): a catheter is inserted into the femoral artery in the groin and advanced through the aorta to the arteries (both carotid arteries ...
Flow diverters are treatment for intracranial aneurysms alternative to endosaccular coil embolization, although the techniques can be combined, especially in large/giant aneurysms. It is mainly effective in wide neck unerupted saccular aneurysms , that are difficult to coil because of the tendency of the coils to fill the parent artery ...
Aortic valve repair or aortic valve reconstruction is the reconstruction of both form and function of a dysfunctional aortic valve. Most frequently it is used for the treatment of aortic regurgitation. [1] It can also become necessary for the treatment of aortic aneurysm, less frequently for congenital aortic stenosis.
Mitral valve repair is mainly used to treat stenosis (narrowing) or regurgitation (leakage) of the mitral valve. [citation needed] A mitral balloon valvuloplasty enlarges the valve opening to allow greater oxygenated blood flow into the left ventricle, and since severe mitral regurgitation can be a major complication, degrees of stenosis, regurgitation, and valve anatomical features are taken ...
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