Figure 1
From: Feasibility of absolute cerebral tissue oxygen saturation during cardiopulmonary resuscitation
Cerebral tissue oxygen saturation (SctO2 (%)) (monitored with FORE-SIGHT™ technology) during out-of-hospital cardiac arrest (patient 1). After 15 minutes of BLS, first measured SctO2 values were 31% and 38% over the left (grey line) and right (black line) fontal region, respectively. Defibrillation (dotted arrow) resulted in ROSC and an immediate increase in SctO2 to 60% (left) and 69% (right). During preparation for transport, ventricular fibrillation (arrow) reoccurred and was accompanied with an immediate decrease in SctO2. Again, defibrillation (dotted arrow) resulted in sinus rhythm and SctO2 values above 65%. BLS, basic life support; CPR, cardiopulmonary resuscitation; Defib, defibrillation; VF, ventricular fibrillation.