Is tissue at risk overestimated in perfusion-weighted imaging : MR imaging in acute stroke patients without vessel recanalization?
Even when vessel occlusion persists, hypoperfused tissue on MR imaging does not necessarily progress toward infarction. The most conclusive inferences can be drawn from CBV images. The site of arterial occlusion also determines progression to infarction.
Atenolol use was related to increased mortality in community-dwelling hypertensive Older adults. This increase in mortality risk seems to be related to an increase of pulse arterial pressure.