What is optimal cardiopulmonary resuscitation technique for children?

We present optimal cardiopulmonary resuscitation (CPR) technique based on body weight using optimal control theory. The validated blood circulation model of CPR has been modified for various body weights by the scaling law. The external chest and abdomen pressures are chosen as controls and the goal is to maximize the mean systemic perfusion pressure (SPP). The numerical results show that four phases CPR method, such as Lifestick CPR, gives the optimal CPR technique. The most interesting result is that more weighted person needs longer compression duration on the abdomen and less weighted person, like children, needs longer compression duration on the chest.