Epcacy of Continuous Insumtion of Oxygen Combined with Active Cardiac Compression4ecompression during Out-of-hospital Cardiorespiratory Arrest

Background: During experimental cardiac arrest, continuous insufflation of air or oxygen (CIO) through microcannulas inserted into the inner wall of a modified intubation tube and generating a permanent positive intrathoracic pressure, combined with external cardiac massage, has previously been shown to be as effective as intermittent positive pressure ventilation (IPPV). Methods: After basic cardiorespiratory resuscitation, the adult patients who experienced nontraumatic, out-of-hospital cardiac arrest with asystole, were randomized to two groups: an Ipw group tracheally intubated with a standard tube and ventilated with standard IPW and a CIO group for whom a modified tube was inserted, and in which CIO at a flow rate of 15 Vmin replaced IPPV (the tube was left open to atmosphere).