QEEG prognostic value in acute stroke
QEEG prognostic value in acute stroke
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DOI：
10.1177/155005940703800312
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发表时间：
2007-07-01
影响因子：
2
通讯作者：
Avila, Y.
中科院分区：
文献类型：
--
作者：
Cuspineda, E.;Machado, C.;Avila, Y.
本研究的目的是确定QEEG对急性缺血性脑卒中患者的预测价值。研究了28例大脑中动脉供血区缺血性卒中临床进展的前72小时内的患者。获得37个QEEG记录：13个在脑卒中发作后的最初24小时，9个在24 - 48小时之间，15个在48 - 72小时之间。绝对能量（AE）是QEEG选择用于统计分析的变量：首先，使用古巴QEEG规范计算AE Z值，然后在每个频带和总功率内选择最大和最小AE Z值。还选择了五个相邻Z值的中位数。以RANKIN评分为因变量，QEEG为自变量，建立回归模型，计算出院时和3个月后的预后预测值。结果表明，α和θ AE是短期预后的最佳预测因子，δ AE是长期预后的最佳预测因子。我们的结论是，QEEG在缺血性中风的第一个72小时内进行可能是一个强大的工具，预测短期和长期的结果。
The objective of our study is to determine the predictive value of QEEG in patients suffering from an acute schemic cerebral stroke. Twenty-eight patients were studied within the first 72 hours of clinical evolution of middle cerebral artery territory ischemic stroke. Thirty-seven QEEG recordings were obtained: 13 in the first 24 hours after cerebral stroke onset, 9 between 24-48 hours and 15 between 4872 hours. Absolute Energies (AE) were the QEEG selected variables for statistical analysis: first, AE Z values were calculated using the Cuban QEEG norms, then the maximum and minimum AE Z values were selected within each frequency band and total power. The medians of the five neighboring Z values were also chosen. Regression models were estimated using the RANKIN scores as dependent variables and the selected QEEG variables as independent, then outcome predictions at hospital discharge and 3 months later were calculated. Percentages of concordance and errors between the estimated and real outcome scores were obtained.Alpha and theta AE were the best predictor for short-term outcome and delta AE for long-term outcome. We conclude that QEEG performed within the first 72 hours of ischemic stroke might be a powerful tool predicting short- and long-term outcome.