not surprising

This study shows that the presence and active fast response of an anesthesiologist was the key component of improving the survival probability of the patients. According to this study the chance of surviving was more if cardiac arrest occured in OR or PACU vs ICU. I wonder whether in those ICUs an anesthesiologist was in charge according to which it can be implied definitely that even if the other personnels' knowledge about CPR or ACLS might be high enough to support the patients but anesthesiologist can  do CPR more effectively and manage critical patients better. In  Iran we have the experience that anesthesiologist who continue their career as fellowship in Critical Care Medicine are more successful in managing critically ill patients.