Fig. 2
From: Laryngeal mask versus facemask in the respiratory management during catheter ablation
Representative results of chronological analyses of end-tidal CO2 (ETCO2) and respiratory intervals in a patient using a laryngeal mask. A. A patients with laryngeal mask. a and d: chronological changes of ETCO2 and respiratory intervals. b and e: moving averages of ETCO2 and respiratory intervals. c and f: chronological changes of standard deviations of ETCO2 and respiratory intervals. B. A patients with facemask. Representative results of chronological analyses of end-tidal CO2 (ETCO2) and respiratory intervals in a patient using a facemask. a and d: chronological changes of ETCO2 and respiratory intervals. b and e: moving averages of ETCO2 and respiratory intervals. c and f: chronological changes of standard deviations of ETCO2 and respiratory intervals