Fig. 2

The second cardiac arrest was followed by an unsuccessful cardiac resuscitation. BIS values initially reached high levels and decreased after 15 min of cardiac decompression. The burst suppression pattern occurred immediately at the beginning of resuscitation and suppression continuously rose until the end of cardiac compression. The last increase of BIS possibly represents improved cerebral activity following a rise of mean arterial pressure caused by a final bolus of 5 mg epinephrine prior to stopping CPR