Doppler Sonography of Cerebral Blood Flow for Early Prognostication After Out-of-hospital Cardiac Arrest

Objective: To assess neurologic prognostication by early Transcranial Doppler Sonography (TCD) in comatose survivors after cardiac arrest. Design: Prospective study between May 2016 and November 2017 in a medical intensive care unit and cardiac intensive care unit in a university hospital. Patients: all comatose patients older than 18 years successfully resuscitated from an out-of-hospital cardiac arrest (OHCA). Patients for whom OHCA is associated with traumatic brain injury, no window for TCD measurements, or dead before neurological prognostication are excluded.