Neurology
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To systematically review outcomes in comatose survivors after cardiac arrest and cardiopulmonary resuscitation (CPR). ⋯ Pupillary light response, corneal reflexes, motor responses to pain, myoclonus status epilepticus, serum neuron-specific enolase, and somatosensory evoked potential studies can reliably assist in accurately predicting poor outcome in comatose patients after cardiopulmonary resuscitation for cardiac arrest.