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QEEG prognostic value in acute stroke.
- Source :
-
Clinical EEG and neuroscience [Clin EEG Neurosci] 2007 Jul; Vol. 38 (3), pp. 155-60. - Publication Year :
- 2007
-
Abstract
- The objective of our study is to determine the predictive value of QEEG in patients suffering from an acute ischemic 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 48-72 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.
Details
- Language :
- English
- ISSN :
- 1550-0594
- Volume :
- 38
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Clinical EEG and neuroscience
- Publication Type :
- Academic Journal
- Accession number :
- 17844945
- Full Text :
- https://doi.org/10.1177/155005940703800312