Persistence of cortical neuronal activity in the dying brain
We report the presence of cortical electrical activity persisting for
about 120 min after cardiac arrest. The general consensus is that interruption
of brain blood flow triggers a chain of electrophysiological
phenomena: oscillatory activity rises in the first tens of seconds [1],
followed by a depression of both oscillatory and spiking activities, and
then by a slow spreading depolarization due to the beginning of irreversible
degenerative processes at the cellular level [2–4]. The