Purpose of the study
The debate on whether mechanical chest compression (CC) devices can be used for cardiopulmonary resuscitation (CPR) remains unresolved. To support this debate and since data on CC quality unbiased by pharmacotherapy is rare we present current hemodynamic data on the fairly new corpuls cpr (GS Elektromedizinische Geraete G. Stemple GmbH) from our animal model.
Materials and methods
After approval, 10 swine were sedated, ventilated and equipped with pressure transducers and a flow probe around the left carotid artery. Following baseline (BL) measurement, ventricular fibrillation was induced by alternating current and ventilation was discontinued. After 5min of untreated cardiac arrest, mechanical CPR was initiated (depth 6.0cm, continuous, 100/min) and ventilation resumed. Defibrillations were performed after 2, 4 and 6min. No cardiovascular pharmacotherapy was applied. Arterial blood pressure (SAP, DAP, MAP), mean carotid blood flow (meanCF) and endtidal carbon dioxide (etCO2) were averaged over 2min intervals (mean ± SD).
Our data support another group's findings (Biomed Res Int. 2017:5470406) that corpuls cpr generates near to normal blood pressure and one third of baseline meanCF. Therefore, we strongly encourage further clinical examination on corpuls cpr in comparison to manual CPR or other chest compression devices.