有些颅内动脉瘤患者在大出血前可出现先兆症状,先兆发生率为15％～58％。Leblance报告有先兆者的死亡率为60％,而无先兆者仅25％。但目前尚无专题报告。作者报告619例蛛网膜下腔出血(SAH),364例经血管造影和临床病史证实存在动脉瘤,309例经手术治疗。出现先兆症状的有74例(20.3％),先兆症状包括头痛(98.6％)、呕吐(51.4％)、头晕(20.3％)、意识障碍(12.2％)和短暂性运动障碍(2.7％)。71.6％的患者症状持续少于 Some patients with intracranial aneurysm before bleeding may appear aura symptoms, the incidence of aura 15% to 58%. Leblance reported a premonitory mortality rate of 60%, while only 25% of those without a priori. However, there is no special report yet. The authors reported 619 cases of subarachnoid hemorrhage (SAH), 364 cases of aneurysms confirmed by angiography and clinical history, and 309 were surgically treated. 74 (20.3%) patients had aura symptoms, including a headache (98.6%), vomiting (51.4%), dizziness (20.3%), disturbance of consciousness (12.2%) and transient dyskinesia (2.7%). 71.6% of patients continued to have less than symptoms