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From the Department of Neurology (Drs. van der Worp, Kappelle, Algra, Bär, and van Gijn) and the Julius Center for Patient-Oriented Research (Dr. Algra), University Medical Center, Utrecht, the Netherlands; the Department of Neurology (Dr. Orgogozo), Groupe Hospitalier Pellegrin, Bordeaux, France; the Department of Neurology (Dr. Ringelstein), Westfälische WilhelmsUniversität, Münster, Germany; and the Division of Stroke Medicine (Dr. Bath), University of Nottingham, United Kingdom.
Address correspondence and reprint requests to Dr. H.B. van der Worp, Department of Neurology, HP G 03.228, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, the Netherlands; e-mail: h.b.vandeworp{at}neuro.azu.nl
The authors investigated whether the lack of effect of tirilazad on clinical outcome in patients with acute ischemic stroke is explained by failure of tirilazad to reduce infarct volume. Overall, tirilazad had no significant effect on infarct volume. In the subgroups of male patients and of those with a cortical infarct, tirilazad significantly reduced infarct volume. These effects were reduced to nonsignificant trends after adjustment for imbalances in baseline characteristics. In conclusion, early treatment of patients with tirilazad has no effect on infarct volume.
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