Methods To analyse the relationship between cerebral damage after SAH and clinical findings: CT scans resulte, age, sex, blood pressure, hyponatraemia, therapeutic methods.

• 方法分析SAH在颅内的分布情况、年龄、性别、血压、血钠、脑血管造影及治疗方法的选择等与SAH继发脑损害的关系。