Does absent middle cerebral artery flow predict the presence and evolution of the ischemic penumbra?
Absent MCA flow on MRA predicts the presence of a presumed penumbral pattern on acute PI and DWI and worse stroke outcome. Combined MRA, PI, and DWI can identify individual patients at risk of ischemic core progression and the potential to respond to thrombolytic therapy beyond 3 hours.
These functional outcome results demonstrate that older patients present for CABG at a significantly lower functional level and remain at a significantly lower functional level 6 months after CABG. However, the functional improvement after CABG is not significantly different across age groups.