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excessive Basin brain, encephalon infarct
脑大动脉及其分枝的供血区形成该动脉的"流域",累及两个或两个以上动脉系统的脑梗塞,被称之为"多流域梗塞"。由于梗塞范围广,脑水肿严重,对皮层功能区和整个中枢神经系统功能破坏严重,因此临床表现神经功能缺失严重。脑、肺炎、消化道出血及心肾功能不全等并发症。死亡率高,存活者残废严重。一般认为
多流域脑梗塞
,多为栓塞所致,也偶见于脑动脉炎。治疗上对动脉主干梗塞所致,也偶见于脑动脉炎。治疗上对动脉主干梗塞者,应积极降低血粘度,对穿通大梗阻的深部脑梗塞,应重视降低血小板的活性。