Title :
Response of end-tidal CO2 to atrial and ventricular paced tachycardias in a canine model: basis for an automatic physiologically responsive external defibrillator
Author :
Noubani, Hasan ; Cohen, Todd J. ; Quan, Weilun ; Goldner, Bruce ; Trazerra, Salvatore ; Stern, Gary
Author_Institution :
North Shore Univ. Hospital, Manhasset, NY, USA
Abstract :
The purpose of this study was to test the feasibility of end-tidal CO2 (ETCO2) as a parameter for incorporation into an automatic external defibrillator. Relative changes in ETCO2 (ΔETCO2) were compared during atrial and ventricular paced tachycardias at cycle lengths of 350, 300, and 250 milliseconds in nine anesthetized dogs. Decreases in ETCO2 during hemodynamically significant tachycardias were rapid and progressive with a return towards baseline immediately after tachycardia termination. For a given paced cycle length, decreases in ETCO2 , were significantly greater for ventricular pacing as compared to a trial pacing. We conclude that ETCO2 appears to be a suitable parameter for incorporation into an automatic external defibrillator. Further research is necessary to determine the true clinical utility of such a system
Keywords :
cardiology; CO2; atrial paced tachycardias; automatic physiologically responsive external defibrillator; baseline; canine model; cycle lengths; end-tidal CO2; hemodynamically significant tachycardias; nine anesthetized dogs; paced cycle length; tachycardia termination; trial pacing; true clinical utility; ventricular paced tachycardias; Animals; Bars; Biomedical monitoring; Blood pressure; Catheters; Computerized monitoring; Condition monitoring; Instruments; Patient monitoring; Transducers;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415391
