Fig. 1
Serial end-tidal partial pressure of carbon dioxide readings during cardiopulmonary resuscitation and after return of spontaneous circulation. During automated cardiopulmonary resuscitation end-tidal partial pressure of carbon dioxide values of up to 26 mmHg were recorded. After 60 minutes of cardiopulmonary resuscitation end-tidal partial pressure of carbon dioxide rapidly dropped to values of less than 10 mmHg. White arrow head indicates arrival of emergency physician; black arrow head indicates arrival of emergency medicine attending physician. Time of withdrawal of all supportive measures is indicated by the black arrow. Resumption of monitoring is marked by asterisk. The respective electrocardiogram (ECG)-rhythm is specified in the top lane. The duration of cardiopulmonary resuscitation is marked with the black bar. Return of spontaneous circulation is indicated by the white bar. CPR cardiopulmonary resuscitation, EMD electromechanical dissociation, p et CO 2 end-tidal partial pressure of carbon dioxide, ROSC return of spontaneous circulation, SR sinus rhythm, VF ventricular fibrillation