脑出血后再发脑梗死与脑白质病变、脑动脉狭窄及血压波动的相关性研究

被引:20
作者
张爱玲 [1 ]
冯来会 [1 ]
张道培 [1 ]
祁佩红 [2 ]
机构
[1] 郑州, 郑州人民医院神经内科
[2] 郑州, 郑州人民医院影像科
关键词
脑出血; 脑梗死; 脑白质病变; 脑动脉狭窄; 血压波动;
D O I
暂无
中图分类号
R743.3 [急性脑血管疾病(中风)]; R743.34 [脑出血];
学科分类号
100204 [神经病学];
摘要
目的探讨脑出血后再发脑梗死与脑白质病变、脑动脉狭窄及血压波动的相关性。方法连续收集自2012年3月至2015年9月于郑州人民医院神经内科住院(发病24 h内)的155例急性脑出血患者, 依据发病4周内磁共振弥散加权成像(DWI)显示远隔血肿部位有无高信号将患者分为再发脑梗死组与未发脑梗死组, 依据脑出血部位分为脑叶出血组和非脑叶出血组, 依据入院1 h平均动脉压(MAP)降低幅度分为强化降压组(MAP降幅≥20%)和非强化降压组(MAP降幅<20%), 对比各组患者的临床特点并分析脑白质病变程度、脑动脉狭窄程度、血压波动在脑出血后再发脑梗死发病中的作用。结果 155例急性脑出血患者中出现再发脑梗死者36例(23.2%), 梗死灶主要分布于脑出血同侧皮质下, 80.6%为无症状性脑梗死, 66.7%为腔隙性脑梗死。脑出血部位和脑白质病变程度在再发脑梗死组和未发脑梗死组间比较差异有统计学意义(P<0.05), 脑动脉狭窄程度组间比较差异无统计学意义(P>0.05)。分层分析显示:脑叶出血组再发脑梗死患者脑白质病变程度显著高于未发脑梗死患者, 差异有统计学意义(P<0.05);非脑叶出血再发脑梗死患者脑动脉狭窄程度显著高于未发脑梗死患者, 差异有统计学意义(P<0.05)。脑动脉狭窄≥50%并强化降压组分别与脑动脉狭窄<50%并强化降压组、脑动脉狭窄≥50%并非强化降压组、脑动脉狭窄<50%并非强化降压组相比, 发生脑出血后再梗死的风险均明显增高, 差异均有统计学意义(P<0.05)。多因素Logistic回归分析显示脑叶出血和中重度脑白质病变是脑出血后再发脑梗死的独立危险因素(OR=2.484 , 95%CI: 1.037~5.953, P=0.041;OR=2.426 , 95%CI: 1.045~5.629, P=0.039)。结论脑出血再发脑梗死主要与脑小血管病相关, 强化降压可显著提高合并大动脉粥样硬化性狭窄脑出血患者再发急性脑梗死的风险, 脑出血急性期个体化平稳控制血压才能最大程度地减少脑损伤。
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