脑动脉瘤怎样治疗

脑动脉瘤如何治疗配图，仅供参考

How are aneurysms treated?
With important medical advances throughout the neurosurgical,neurological and endovascular fields,treatment for brain aneurysms is more promising than it was several years ago.
There are more effective and less invasive treatment options for patients,who in years past,would have been told they had inoperable aneurysms. Doctors consider several factors when deciding which treatment option is best for a particular patient. These include size,location,and type of aneurysm; ruptured versus unruptured; condition of the patient; and medical history.
Two surgical and one endovascular (within the blood vessel) options are available for treating brain aneurysms,all of which carry some risk to the patient (such as possible damage to other blood vessels,the potential for aneurysm recurrence and re-bleeding,and the risk of post-procedure stroke). Options are described below:
Microvascular clipping involves cutting off the flow of blood to the aneurysm. Under anesthesia,a section of the skull is removed and the aneurysm is located. The neurosurgeon uses a microscope to isolate the blood vessel that feeds the aneurysm and places a small,metal,clothespin-like clip on the aneurysm’s neck,halting its blood supply. The clip remains in the patient and prevents the risk of future bleeding. The piece of the skull is then replaced and the scalp is closed. Clipping has been shown to be highly effective,depending on the location,shape,and size of the aneurysm. In general,aneurysms that are completely clipped surgically do not return.
A related procedure is parent vessel occlusion,in which the surgeon clamps off (occludes) the entire artery that leads to the aneurysm. This procedure is often performed when the aneurysm has damaged the artery. An occlusion is sometimes accompanied by a bypass,in which a small blood vessel is surgically grafted to the brain artery,rerouting the flow of blood away from the section of the damaged artery.
Endovascular embolization is an alternative to surgery. Once the patient has been anesthetized,the doctor inserts a hollow plastic tube (a catheter) into an artery (usually in the groin) and threads it,using angiography,through the body to the site of the aneurysm. Using a guide wire,detachable coils (spirals of platinum wire) or small latex balloons are passed through the catheter and released into the aneurysm. The coils or balloons fill the aneurysm,block it from circulation,and cause the blood to clot,which effectively obliterates the aneurysm. The procedure may need to be performed more than once during the patient’s lifetime.","department":"