Endangered Cerebral Blood Supply After Closure of Left Subclavian Artery: Postmortem and Clinical Imaging Studies

When the LSA is closed, insufficient posterior cerebral circulation due to anatomic reasons occurs relatively infrequently, but in order to avoid the debilitating complications in these cases, careful imaging of the right vertebral artery up to the basilar artery is mandatory, and if proven hypoplastic, imaging of PComAs is necessary.