Neurology. 2013 Jan 29;80(5):e56-9. doi: 10.1212/WNL.0b013e3182834b22.
Subarachnoid hemorrhage (SAH) can result from the rupture of an intracranial aneurysm-a weakened, dilated area of a blood vessel in the brain that is prone to burst. SAH can be devastating. Approximately 1 in 6 patients dies at the time of the bleeding. Those who initially survive can die after early rebleeding or have major complications. The complications of SAH include strokes from delayed spasm of blood vessels in the brain even after the aneurysm that caused the hemorrhage is treated. Most of the research on SAH has been focused on this early phase. Less is known about what happens longer term to those patients who survive SAH.
蛛网膜下腔出血 (SAH) 可由颅内动脉瘤破裂引起——这是大脑中血管的薄弱、扩张区域，容易破裂。SAH 可能是毁灭性的。大约每 6 名患者中就有 1 人在出血时死亡。那些最初存活下来的患者可能会在早期再出血后死亡，或出现重大并发症。SAH 的并发症包括脑出血后血管延迟痉挛引起的中风，即使引起出血的动脉瘤已得到治疗。大多数关于 SAH 的研究都集中在早期阶段。对于那些幸存下来的 SAH 患者，人们对长期会发生什么了解较少。
