Is there any danger in cerebral aneurysm interventional surgery?

The cause of cerebral aneurysm is not clear yet, which may be caused by long-term hypertension, smoking, diabetes and other factors. Cerebral aneurysm is not a real tumor, but caused by abnormal dilation of arterial blood vessels. Any operation is risky. Interventional operation has small wound, intraoperative bleeding is less than ordinary operation bleeding, and patients recover quickly.