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Table 1 Cerebral Performance Categories Score

From: Time-differentiated target temperature management after out-of-hospital cardiac arrest: a multicentre, randomised, parallel-group, assessor-blinded clinical trial (the TTH48 trial): study protocol for a randomised controlled trial

CPC1. Good cerebral performance
Conscious. Alert, able to work and lead a normal life. May have minor psychological or neurological deficits (mild dysphasia, non-incapacitating hemiparesis, or minor cranial nerve abnormalities)
CPC 2. Moderate cerebral disability
Conscious. Sufficient cerebral function for part-time work in a sheltered environment or independent activities of daily life (dressing, traveling by public transportation, and preparing food). May have hemiplegia, seizures, ataxia, dysarthria, dysphasia, or permanent memory or mental changes
CPC 3. Severe cerebral disability
Conscious. Dependent on others for daily support because of impaired brain function (in an institution or at home with exceptional family effort). At least limited cognition. Includes a wide range of cerebral abnormalities from ambulatory with severe memory disturbance or dementia precluding independent existence to paralytic and able to communicate only with eyes, as in the locked-in syndrome
CPC 4. Coma, Vegetative state
Not conscious. Unaware of surroundings, no cognition. No verbal or psychological interactions with environment
CPC 5. Death
Certified brain dead or dead by traditional criteria