Natural History of Intracranial Aneurysms / 国际脑血管病杂志

ABSTRACT

Intracranial aneurysms are a severe cerebrovascular disease.Its incidences ranged from 2% to 4% in general population.With the population aging and the development of imaging technique,the prevalence of intracranial aneurysm is increasing year by year.The research of natural course of aneurysm has important significance for neurosurgeons to evaluate the validity of therapeutic measures.There are significant differences between the patients with aneurysm who have had subarachnoid hemorrhage and those who have not.The rates of ruptured intracranial aneurysms per year ranged from 0.066% to 2%.The risk factors that affect ruptured intracranial aneurysms including the size and place of aneurysm,whether it is multiple aneurysms or not,growth rate,and self-factors of patients,such as age,sex,and history of hypertension and smoking,etc.