老年脑血管病患者由于年龄高、卧床、抵抗力低下等原因 ,合并呼吸系统及泌尿系统感染非常多见 ,为了控制感染 ,常需应用广谱抗生素。喹诺酮类抗生素由于抗菌谱广 ,疗效好 ,使用便捷而得到广泛应用。尽管该类药物的耐受性一般都较好 ,但仍可能发生头痛、意识模糊、幻觉、焦虑、 Elderly patients with cerebrovascular disease due to age, bed rest, low resistance and other reasons, the merger of the respiratory system and urinary tract infections are common, in order to control the infection, often need to apply broad-spectrum antibiotics. Quinolone antibiotics widely used as antibacterial spectrum, good curative effect, easy to use. Although these drugs are generally well tolerated, headaches, confusion, hallucinations, anxiety,