Safety Evaluation of an Alternative Chest Compression Landmark for Cardiopulmonary Resuscitation: A Cadaveric Randomized Controlled Trial

OBJECTIVES Out-of-hospital cardiac arrest (OHCA) remains a significant global health challenge. Cardiopulmonary resuscitation (CPR) plays a pivotal role in patient survival; the International Liaison Committee on Resuscitation (ILCOR) recommends compressions on the lower half of the sternum. However, emerging evidence suggests that performing compressions below this point, directly targeting the maximal diameter of the left ventricle, may improve cardiac output and clinical outcomes. This study assessed the safety of the new compression landmark by comparing complications with the standard approach.