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硬膜外血肿术后顽固性脑水肿的机制研究 被引量:8

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摘要 目的 :阐明硬膜外血肿术后顽固性脑水肿的主要机制。方法 :监测硬膜外血肿新西兰大白兔的局部脑皮质血流量、游离 [Ca2 +]i、 [p H]i与脑含水量的动态变化并分析其相关性。结果 :硬膜外血肿急性减压后 ,脑皮质先后经历了局部脑血流双期变化—急性超灌注和持续的低灌流。 [Ca2 +]i于压迫后明显升高 ;减压后短暂降低 ,继之缓渐增加 ,2 4h达到高峰。减压后 [Ca2 +]i与脑组织含水量呈显著正相关关系 (v=38,r=0 .46 9,P<0 .0 1)。结论 :硬膜外血肿急性减压后脑组织存在再灌注损伤 ,这是术后发生顽固性脑水肿的关键所在。
出处 《脑与神经疾病杂志》 2002年第5期297-299,共3页 Journal of Brain and Nervous Diseases
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