Objective: The aim of the study was to assess the ease-of-use, safety, and usefulness of an automated external chest compression device for cardiopulmonary resuscitation.
Methods: Adults with out-of-hospital cardiac arrest (OHCA) were included prospectively. The emergency medical services (EMS) in a large suburb northeast of Paris (France) recorded data for standard criteria for EMS care for CA and specific criteria on device use-application time, ease of application and use (visual analog scale score: 0, impossible; 5, very easy), technical incidents, and clinical complications.
Results: We attended 4868 OHCA patients (January 2005 to April 2010) and used the device in 285 patients (6%) (212 males [74%], 73 females [26%]; median age, 56 [43-70] years). Results (medians with 25-75 percentiles) were as follows: time to apply device, 30 seconds (20-60); ease of application and activation, 5 (4-5) and 5 (5-5), respectively; duration of use, 30 (20-41) minutes; return to spontaneous circulation (ROSC), 76 patients (27%); and time to ROSC, 19 (12-32) minutes after placement. Twenty-seven patients (9%) with refractory CA benefited from extracorporeal life support. Overall, 32 patients were alive after 24 hours, 11 at 7 days, and 3 at 1 month. An additional 23 patients (8%) with refractory CA were selected for non-heart-beating kidney procurement. Ten patients were used to harvest kidneys and 15 were transplanted. There were 21 technical incidents (7%) and 19 clinical complications (7%).
Conclusion: The device was easy to use in routine emergency practice and of particular value in facilitating access to extracorporeal life support or non-heart-beating organ procurement. These uses should be itemized in all OHCA studies.
Copyright © 2011. Published by Elsevier Inc.