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Effect of the AutoPulse automated band chest compression device on hemodynamics in out-of-hospital cardiac arrest resuscitation Duchateau FX; Gueye P; Curac S; Tubach F; Broche C; Plaisance P; Payen D; Mantz J; Ricard-Hibon AIntensive Care Med 2010[Jul]; 36 (7): 1256-60PURPOSE: Guidelines for advanced life support of cardiac arrest (CA) emphasize continuous and effective chest compressions as one of the main factors of cardiopulmonary resuscitation (CPR) success. The use of an automated load distributing chest compression device for CPR is promising but initial studies on survival show contradictory results. The aim of this study was to evaluate the effects of AutoPulse on blood pressure (BP) in out-of-hospital CA patients. METHODS: This prospective study included adult patients presenting with in refractory out-of-hospital CA. Invasive arterial BP produced by AutoPulse was compared to BP generated by manual CPR (Active Compression Decompression). Systolic, diastolic and mean BP and end-tidal carbon dioxide were recorded before and after initiating the automated band device for each patient. The comparison of diastolic BP produced by manual CPR versus automated chest compressions was the primary end point. RESULTS: Hemodynamics in 29 patients are reported and analyzed. Median diastolic BP increased after starting AutoPulse from 17[11-25] mmHg to 23[18-28] mmHg (P < 0.001). Median systolic BP increased from 72[55-105] mmHg to 106[78-135] mmHg (P = 0.02). Mean BP increased from 29[25-38] mmHg to 36[30-15] mmHg (P = 0.002). On the other hand, End-Tidal CO(2) did not increase significantly with AutoPulse (21[13-36] vs. 22[12-35] mmHg, P = 0.80). CONCLUSIONS: In patients with out-of-hospital CA, the use of AutoPulse is associated with an increased diastolic BP compared to manual chest compressions. While its benefit to survival has yet to be demonstrated, the increase in diastolic and mean BP is a promising outcome for AutoPulse use.|Adult[MESH]|Cardiopulmonary Resuscitation/*instrumentation/methods[MESH]|Emergency Medical Services/*methods[MESH]|Heart Arrest/*therapy[MESH]|Humans[MESH]|Prospective Studies[MESH] |
