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To date there has been no reliable noninvasive real time monitoring available to determine cerebral perfusion during cardiac arrest.

To investigate the feasibility of using a commercially available cerebral oximeter during in-hospital cardiac arrest, and determine whether this parameter predicts return of spontaneous circulation (ROSC).

Cerebral oximetry was incorporated in cardiac arrest management in 19 in-hospital cardiac arrest cases, five of whom had ROSC. The primary outcome measure was the relationship between rSO₂ and ROSC.

The use of cerebral oximetry was found to be feasible during in hospital cardiac arrest and did not interfere with management. Patients with ROSC had a significantly higher overall mean±SE rSO₂ (35±5 vs. 18±0.4, p<0.001). The difference in mean rSO₂ between survivors and non-survivors was most pronounced in the final 5min of cardiac …