Interventional treatment of intracranial aneurysms

The population prevalence of intracranial aneurysms is 0.5-1%, which should be considered high; 1 in 100 people may have an intracranial aneurysm. Aneurysms are not usually known, but only the larger size of the aneurysm, which causes damage to peripheral nerve structures, and the rupture and bleeding (subarachnoid hemorrhage) are of clinical concern. The annual rate of aneurysm rupture is 1-2/10,000, meaning that 1-2 out of 100 unruptured aneurysms rupture each year. Depending on the amount of subarachnoid hemorrhage and the severity of its manifestation, it is clinically classified into 5 grades, with grade 5 being the most severe and potentially fatal at any time, and grade 1 being the least severe and can be asymptomatic. Ruptured aneurysms must be treated as early as possible, especially in patients with subarachnoid hemorrhage grade 1-3; grade 4-5 depends on the condition, and there is little clinical significance in treating patients with no hope of survival. Interventional therapy is currently the main method of treating intracranial aneurysms, and is characterized by less trauma and higher costs compared to open surgery.