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颅内动脉瘤神经症状的发病涉及多种机理。最常见的可能是出血进入蛛网膜下腔、脑室系统或脑实质,动脉瘤的大小、部位也叮造成邻近神经结构受压或移位。近儿年更多地注竞列伴随须内动脉瘤破提而出现的脑缺血与脑梗死,脑血管痉孪被认为是一主要发病因素,虽然临床上井无一致的症状群出现。某些病例可能是动脉瘤中的血块脱落引起栓塞。作背报告了2例。例1,女,64岁,入院前两年曾有一次完全性右上睑下垂,以小时内消失;入
The pathogenesis of intracranial aneurysmal neuropathy involves a variety of mechanisms. The most common may be bleeding into the subarachnoid space, ventricular system or brain parenchyma, aneurysm size, site also caused by compression or displacement of adjacent nerve structures. In recent years, more attention is being drawn to the occurrence of cerebral ischemia and cerebral infarction associated with intracranial aneurysmal rupture. Cerebral vasospasm is considered as a major causative factor, although clinically well-matched symptomatic groups emerge. Some cases may be embolism caused by the shedding of blood clots in the aneurysm. Two cases were reported back. Example 1, female, 64 years old, had a complete right upper eyelid ptosis in the first two years before admission and disappeared within an hour.