Overall core temperatures remained the same. Brain temperatures in the cooled subjects were approximately 3 degrees centigrade cooler, however.
"Conclusion: In this model, selective head cooling rapidly reduces brain temperature during CPR. These reductions in brain temperature increase arterial and CPP immediately following ROSC, resulting in greater hemodynamic stability and less recurrence of VF."
Link to the abstract is here: http://www.benechill.com/wp/wp-content/uploads/2010/10/20-abstract-hemodynamics.pdf