The risk associated with a cerebral infarction primarily depends on the extent and location of the infarction. If the infarction is small and located in less critical areas of brain function such as the frontal or temporal lobes, the symptoms may not be severe and might only include dizziness and sleepiness. If the infarction is extensive and occurs in crucial areas such as the basal ganglia, thalamus, or brainstem, the symptoms can be very severe. This could potentially lead to hemiplegia, aphasia, and even coma or death.