Perihemorrhagic hypoperfusion probably is a consequence of reduced metabolic demand (diaschisis) rather than a sign of ischemia. We found no evidence for a perihemorrhagic and potentially salvageable ischemic penumbra in hyperacute ICH. Further studies should address metabolic, toxic, apoptotic, and microvascular aspects.
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Schellinger et al. (2003) studied this question.
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