脑血管造影阴性的蛛网膜下腔出血病因分析

目的　研究脑血管造影阴性的自发性蛛网膜下腔出血 (SAH)的病因。方法　分析脑血管造影阴性的SAH2 5例。绝大多数均经CT、DSA、MRI检查。结果　 2 5例中 ,脊髓动静脉畸形 1例 ,血液病 1例 ,另 2例可能为破裂出血的隐匿型血管畸形或海绵状血管瘤。结论　初次血管造影阴性的SAH的处理及预后与CT上出血的特征有密切关系 ,对于环中脑池蛛网膜下腔出血 (PNSH)应避免重复造影 ,脑脊髓MRI检查对明确病因有一定帮助。

Spontaneous Nonaneurysmal Subarachoid Hemorrhage

Objective To study the tiology and the treatment of spontaneous nonaneurysmal subarachnoid hemorrhage.Methods Twenty five cases of cerebral vessel angiography negative patients were analysed retrospectively,the majority of them had been undergone CT,DSA,MRI examination in order to define the etiological factor.Results Among them,there was 1 case of spinal ateri-venous malformation,1 case of hemorrhagic blood and 2 cases according to the revealing of MRI could be explained as bleeded vascular-occult malformation or cavernousangioma.Conclusion The management and prognosis of patients in whom nonaneurysm is founded on the intial angiogram depends on the pattern of hemorrhage of the initial CT scanning,repeated angiorgraphy should be avoided for the case of perimesencephalic Nonaneuryomal SAH and MRI examination may be indicated to defining of etiological factors.