Wednesday, October 29, 2008

Watershed syndromes


types
Between MCA and ACA-- crural paresis with noncortical sensory loss matching; mutism followed by TMA or if nondominant, mood disturbance (apathy or euphoria)

Between MCA and PCA-- Hemisanopsia with macular sparing always noncongruent was most common, in lower quadrant, followed by cortical hemihypesthesia (2 pt discrim and sterognosis) but rarely limb weakness; anoma, YSA, and rarely Wernicke's aphasia. Mutism never occurred and half of patients were severely depressed.

Between superfical and deep territories of the MCA (subcortical watersheds) had hemiparesis, hemisensory loss (usually noncortical), aphasia and neglect.

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