To explore whether the patient's neurological function recovery period is sufficient after successful emergency resuscitation recommended by the current guidelines

The research team will collect patient data after successful emergency resuscitation after cardiac arrest in the emergency room of National Taiwan University Hospital, and will collect and analyze the relationship between the time for patients to regain consciousness and drug use, hemodynamic changes, and neurological examination results after resuscitation. To explore whether the patient population needs to extend the observation time of neurological function after a certain CPR emergency treatment, and allow the patient to have a longer observation period to regain consciousness.

Inclusion Criteria:

• Patients with non-traumatic cardiac arrest in the emergency room of National Taiwan University Hospital (including pre-hospital cardiac arrest and in-hospital cardiac arrest) after successful emergency resuscitation

Exclusion Criteria:

• Under 20 years old
• Pregnant women
• Those who have not been admitted to the intensive care unit
• Unconsciousness before the heartbeat stops
• A clear consciousness after successful first aid resuscitation

Patients with non-traumatic cardiac arrest who have been successfully resuscitated by first aid and admitted to the intensive care unit