Transient or permanent focal brain injury following acute thromboembolic oc
clusion develops from a complex cascade of pathophysiological events. The p
rocesses of excitotoxicity, peri-infarct depolarisation, inflammation, and
apoptosis within the ischemic penumbra are proposed. While the translation
of therapeutic agents from the animal models to human clinical trials have
been disappointing, there remains an atmosphere of optimism as a result of
the development of new diagnostic and therapeutic approaches, which include
physiological, as opposed to pharmacological, intervention. This article p
rovides an insight into the understanding of cerebral ischemia, together wi
th current and future treatment strategies.