Article

The present report is of two patients who, immediately after internal carotid
endarterectomy, presented with unexplained hemiplegia, despite normal findings on
repeated MRI scans, which secondarily evolved into homolateral subacute
corticobasal syndrome (CBS), with asymmetrical hemispheric hypometabolism and
evidence of dopaminergic denervation. This prompted us to propose an hypothesis
of transient cerebral hypoxia arising during the surgical clamping period that
might have provoked a prolonged or permanent functional lesion of the left
hemisphere and basal ganglia, with no visible infarction on MRI but only synaptic
rearrangement of the neural networks, thereby revealing or exacerbating a
potentially preexisting silent impairment.
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Langue : ANGLAIS