• Resuscitation · Oct 2017

    Evaluation of the Boussignac Cardiac arrest device (B-card) during cardiopulmonary resuscitation in an animal model.

    • Johanna C Moore, Lionel Lamhaut, Alice Hutin, Kenneth W Dodd, Aaron E Robinson, Michael C Lick, Bayert J Salverda, Mason B Hinke, José Labarere, Guillaume Debaty, and Nicolas Segal.
    • Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN, United States; Department of Emergency Medicine, University of Minnesota, Minneapolis, MN, United States; Minneapolis Medical Research Foundation, Hennepin County Medical Center, Minneapolis, MN, United States. Electronic address: Johanna.Moore@hcmed.org.
    • Resuscitation. 2017 Oct 1; 119: 81-88.

    Aim Of The StudyThe purpose of this study was to examine continuous oxygen insufflation (COI) in a swine model of cardiac arrest. The primary hypothesis was COI during standard CPR (S-CPR) should result in higher intrathoracic pressure (ITP) during chest compression and lower ITP during decompression versus S-CPR alone. These changes with COI were hypothesized to improve hemodynamics. The second hypothesis was that changes in ITP with S-CPR+COI would result in superior hemodynamics compared with active compression decompression (ACD) + impedance threshold device (ITD) CPR, as this method primarily lowers ITP during chest decompression.MethodsAfter 6min of untreated ventricular fibrillation, S-CPR was initiated in 8 female swine for 4min, then 3min of S-CPR+COI, then 3min of ACD+ITD CPR, then 3min of S-CPR+COI. ITP and hemodynamics were continuously monitored.ResultsDuring S-CPR+COI, ITP was always positive during the CPR compression and decompression phases. ITP compression values with S-CPR+COI versus S-CPR alone were 5.5±3 versus 0.2±2 (p<0.001) and decompression values were 2.8±2 versus -1.3±2 (p<0.001), respectively. With S-CPR+COI versus ACD+ITD the ITP compression values were 5.5±3 versus 1.5±2 (p<0.01) and decompression values were 2.8±2 versus -4.7±3 (p<0.001), respectively.ConclusionCOI during S-CPR created a continuous positive pressure in the airway during both the compression and decompression phase of CPR. At no point in time did COI generate a negative intrathoracic pressures during CPR in this swine model of cardiac arrest.Copyright © 2017 Elsevier B.V. All rights reserved.

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