Pokorski R J
Swiss Re, Fairfield, CT 06430, USA. Robert
J Insur Med. 1997;29(1):11-8.
Subarachnoid hemorrhage (SAH) is bleeding into the subarachnoid space. It may result from a rupture of an intracranial aneurysm, bleeding from an arteriovenous malformation, hypertensive intracerebral hemorrhage with extension into the subarachnoid space, hemorrhage from an intracranial tumor, trauma, and hematologic disorders. If trauma is eliminated as a cause of SAH, more than 80% of SAHs are due to rupture of an intracranial aneurysm. This paper will focus on morbidity and mortality associated with ruptured and unruptured intracranial aneurysms.
蛛网膜下腔出血（SAH）是指血液流入蛛网膜下腔。其可能由颅内动脉瘤破裂、动静脉畸形出血、高血压性脑出血破入蛛网膜下腔、颅内肿瘤出血、外伤以及血液系统疾病引起。如果排除外伤是SAH的病因，那么超过80%的SAH是由颅内动脉瘤破裂所致。本文将聚焦于与破裂和未破裂颅内动脉瘤相关的发病率和死亡率。
