脑室出血
　脑室出血(intraventricularhemorrhage,IVH) 分为原发性脑室出血(primaryintraventricularhemorrhage,PIVH) 和继发性脑室出血(secondumintraventricularhemorrhage,SIVH) 。PIVH指完全局限于脑室系统内的出血或局限于