- A tiny platinum coil is inserted through the tube and positioned into the aneurysm.
- An electric charge is passed through the coil to form blood clots.
- In this case, blood clots benefit the patient by using the coil as a scaffold and sealing off the aneurysm.
A 2002 study suggested it could be attempted safely in over 95% of patients with unruptured aneurysms. In the study, the procedure eliminated the aneurysm in nearly 90% of the patients. In small trials using the coil with a ruptured aneurysm, only 3.7% of patients suffered a second stroke after 7 months compared to the usual re-rupture rate of 30 - 40%.
Emergency Surgery for Hemorrhagic Strokes. Emergency surgery for a hemorrhagic stroke involves locating and removing large blood clots. In the past, such procedures had little effect on survival. Advances, however, are improving outcomes when surgery is performed very early.
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