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Case Reports
LUCAS 2™ device, compression depth, and the 2010 cardiopulmonary resuscitation guidelines.
- Kovid Trivedi, Vesna Borovnik-Lesjak, and Raúl J Gazmuri.
- Rosalind Franklin University of Medicine and Science and Captain James A. Lovell Federal Health Care Center, North Chicago, IL 60064, USA. kovidtrivedi@gmail.com
- Am J Emerg Med. 2013 Jul 1;31(7):1154.e1-2.
AbstractThe 2010 guidelines for cardiopulmonary resuscitation recommends that the chest be compressed at least 5 cm, with evidence that depths exceeding 5 cm may further aid resuscitation. The current piston-based mechanical device LUCAS 2™ is programmed to deliver a compression depth of 5 cm. We report 2 cases in which the LUCAS 2™ device failed to generate physiological surrogates of blood flow (ie, end-tidal carbon dioxide tension and aortic diastolic blood pressure) at levels indicative of effective chest compressions. A switch to manual compressions allowing greater compression depth yielded higher end-tidal carbon dioxide tension and arterial blood pressure. These cases depict limitations of the LUCAS 2™ device and the importance of guiding chest compression by physiological parameters. Consideration should be given to modifications to the LUCAS 2™, allowing rescuers to increase depth when required to optimize the hemodynamic efficacy of chest compression.
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