↓, worse outcome; ↑, better outcome; NE, no effect; NA, not assessed or not available; CPR, cardiopulmonary resuscitation; BS, burst suppression; 1duration of RSE >10 days; 2anoxic brain injury etiology excluded; 3duration of coma >10 days; 4effect seen with pneumonia; 5effect seen with GCSE and NCSE; 6effect seen only with hypoxic/anoxic brain injury and intracranial tumor.