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The long-term efficacy of GDC coils and similar coils in the treatment of cerebral aneurysms is still being studied.
== Mechanism of Function ==
A microcatheter is inserted into an artery in the patients groain and is slid into the bleeding cerebral blood vessel. Once the catheter reaches the aneurysm, the GDC microcoils are released from the main blood vessel into the lumen of the aneurysm. This release is triggered by a small electric current. Coils are released into the aneurysm until, it is full and will not accept any more coils. These platinum coils are fairly soft and adapt to the shape of othe aneurism. <ref>{{Cite web|title = Guglielmi Detachable Coils Aneurysm Embolization|url = http://www.emoryhealthcare.org/stroke/treatments/gdc-treatment.html|website = Emory Healthcare|accessdate = 2015-11-08}}</ref>
==See also==
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