背景因脑血管和心血管问题,破裂的颅内囊状动脉瘤病人较一般人群有极高的远期观察病死率。文献报道:破裂的颅内动脉瘤、腹主动脉瘤和冠状动脉斑块中存在慢性炎症,而细菌性感染可能是动脉粥样硬化的病因之一。人们已从腹主动脉和冠状动脉中检测到细菌,但是颅内动脉瘤中这种检测尚未见报道。目的 初 Background Due to cerebrovascular and cardiovascular problems, patients with ruptured intracapsular saccular aneurysms have a significantly higher long-term mortality than the general population. It has been reported in the literature that chronic inflammation is present in ruptured intracranial aneurysms, abdominal aortic aneurysms and coronary plaque, while bacterial infection may be one of the causes of atherosclerosis. Bacteria have been detected in the abdominal aorta and coronary arteries, but this has not been reported in intracranial aneurysms. The beginning of the purpose