after 3 hours of ischemia , infarct zone segment length had increased significantly more than normal zone length ( 116 +/- 11 [ sd ] versus 103 +/- 4 % of control length , p less than 0.05 ) , whereas 2 minutes after cardiac arrest , both the infarct and normal zones returned to preischemic segment length , demonstrating apparent reversibility of early infarct expansion .
C0022116
ischemia
C0021308
infarct