脑血管破裂或阻塞可致突然的知觉丧失，而代谢异常（如糖尿病）或脑肿瘤所引起的昏迷则发病缓慢。
Coma caused by stroke can be sudden, while that caused by metabolic abnormalities (as in diabetes mellitus) or cerebral tumours comes on gradually.
室友把他送进了当地医院，诊断结果很可怕——小飞有先天性脑血管瘤，突然破裂造成他的左侧大脑大面积出血，情况危急。
My roommate send him into the local hospital diagnosis terrible - small fly with congenital brain hemangioma, burst of his left brain hemorrhage, large in critical condition.
结论：头颈部手术围手术期内脑血管意外的发生多与颈部大血管的损伤、破裂有关。
Conclusion: Head and neck surgery patients may undergo cerebrovascular accident of perioperative period during surgery, injury or rupture of blood vessels is the most important reason.
破裂是从脑血管壁的疵点即动脉瘤开始的。
Such ruptures begin with aneurysms, which are weak spots in blood vessels in the brain.
目的为寻求一种防治破裂脑动脉瘤急诊术后脑血管痉挛的效果确切、操作简便的方法。
Objective To find an effective and simple method of preventing cerebral vasospasm after emergency operation of ruptured intracranial aneurisms.
以SAH为死亡原因者，32例，占25%，多见于脑血管畸形与动脉瘤破裂，出血部位多见于脑底及小脑天幕以下。
SAH accounted for only 32 death cases (25%), most often caused by cerebrovascular malformation and ruptured intracranial aneurysm in the basis of brain or under tentorium of cerebellum.
中风是由于脑部的大血管破裂，或更常见的是，脑血管的阻塞引起。
It occurs when a blood vessel in the brain bursts or, more commonly, when a blockage develops.
出血会在虚弱的血管，也就是所谓的大脑血管瘤破裂时发生，可能导致大脑损伤或死亡。
Bleeding can happen when a weakened blood vessel, known as a brain aneurysm, bursts. This can result in brain damage or death.
出血会在虚弱的血管，也就是所谓的大脑血管瘤破裂时发生，可能导致大脑损伤或死亡。
Bleeding can happen when a weakened blood vessel, known as a brain aneurysm, bursts. This can result in brain damage or death.
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