TY - JOUR
T1 - Defibrillator electrode-chest wall coupling agents
T2 - Influence on transthoracic impedance and shock success
AU - Aylward, Philip E.
AU - Kieso, Robert
AU - Hite, Pamela
AU - Charbonnier, Francis
AU - Kerber, Richard E.
N1 - Funding Information:
From the Cardiovascular Center. Department of Internal Medicine, University of Iowa Hospital. Iowa City. Iowa and The Hewlett-Packard Corporation. McMinnville, Oregon. This work was supported in part by Grant HL-14388 from the National Heart, Lung, and Blood Institute, Bethesda, Maryland and in part by a grant from the Hewlett-Packard Corporation, McMinnville, Oregon. Philip Aylward is an Overseas Research Fellow of the National Heart Foundation of Australia, Canberra Australian Capital Territory. Manuscript received January 15, 1985; revised manuscript received April 9, 1985, accepted May 3, 1985.
PY - 1985
Y1 - 1985
N2 - The purpose of this study was to determine if the difference in transthoracic impedance produced by different coupling agents affects the success of shocks for defibrillation. Three different coupling agents, Harco pads (Hewlett-Packard), Littman pads (3M) and Redux paste (Hewlett-Packard), were assessed in I0 anesthetized dogs in which ventricular fibrillation was induced by electrical stimulation of the right ventricle. Defibrillation was attempted 15 seconds later, using 50, 100 and 150 joules (selected energy). Actual delivered energy, current, impedance and the percent of the shocks that achieved defibrillation were determined for the three coupling agents. Redux paste gave significantly lower impedance and higher current than the two disposable preformed coupling pads tested. Despite this, there were no significant differences in shock success among the three coupling agents. Thus, in this experimental model, over a threefold energy range, disposable coupling pads were as effective as electrode paste for defibrillation despite the slightly higher impedance of the disposable pads.
AB - The purpose of this study was to determine if the difference in transthoracic impedance produced by different coupling agents affects the success of shocks for defibrillation. Three different coupling agents, Harco pads (Hewlett-Packard), Littman pads (3M) and Redux paste (Hewlett-Packard), were assessed in I0 anesthetized dogs in which ventricular fibrillation was induced by electrical stimulation of the right ventricle. Defibrillation was attempted 15 seconds later, using 50, 100 and 150 joules (selected energy). Actual delivered energy, current, impedance and the percent of the shocks that achieved defibrillation were determined for the three coupling agents. Redux paste gave significantly lower impedance and higher current than the two disposable preformed coupling pads tested. Despite this, there were no significant differences in shock success among the three coupling agents. Thus, in this experimental model, over a threefold energy range, disposable coupling pads were as effective as electrode paste for defibrillation despite the slightly higher impedance of the disposable pads.
UR - http://www.scopus.com/inward/record.url?scp=0022398416&partnerID=8YFLogxK
U2 - 10.1016/S0735-1097(85)80131-5
DO - 10.1016/S0735-1097(85)80131-5
M3 - Article
C2 - 4031281
AN - SCOPUS:0022398416
SN - 0735-1097
VL - 6
SP - 682
EP - 686
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
IS - 3
ER -