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We prospectively tested the hypothesis that early recovery after ischemic stroke depends on the ultimate survival of functionally impaired, critically ischemic (i.e., "penumbral") tissue. From a series of 26 consecutive patients studied with positron emission tomography within 18 hours of first-ever stroke in the middle cerebral artery territory, all 11… (More)
To clarify the relationships between early hyperperfusion (i.e. the hallmark of early, efficient recanalization in animal stroke models) and ultimate infarction, we have compared acute-stage perfusion PET images and chronic-stage CT scans in patients with middle cerebral artery (MCA) stroke. We used PET and the oxygen-15 (15O) equilibrium method to obtain… (More)
OBJECTIVE To assess the impact on stroke outcome of statin use in the acute phase after IV thrombolysis. METHODS Multicenter study on prospectively collected data of 2,072 stroke patients treated with IV thrombolysis. Outcome measures of efficacy were neurologic improvement (NIH Stroke Scale [NIHSS] ≤ 4 points from baseline or NIHSS = 0) and major… (More)
The efficacy of Cyproheptadine, a serotonin antagonist, in preventing the cerebral ischemic damage was tested on experimental model of transient global cerebral ischemia in Mongolian Gerbil. The semi-quantitative histological evaluation of the severity of ischemic damage showed a protective effect of Cyproheptadine, mainly in the anterior cortical areas.