Use of Extracorporeal Membrane Oxygenation in Patients with Refractory Cardiac Arrest due to Severe Persistent Hypothermia: About 2 Case Reports and a Review of the Literature

Table 1

Groups of hypothermia according to its severity [6].

	Type	Temperature	Symptoms
Group 1	Mild	35–32°C	Conscious, shivering patient
Group 2	Moderate	32–28°C	Impaired consciousness without shivering
Group 3	Severe	28–24°C	Coma, unconsciousness, present vital signs, possibility of rhythm disturbance, bradycardia, wide QRS, and cardiac arrest
Group 4	Very severe	Below 24°C	Cardiac arrest or low flow state
Group 5	Irreversible	Below 13.7°C	Dead patients due to irreversible hypothermia