Jentzer JC, et al. - Researchers examined if changes on serial transthoracic echocardiography (TTE) can predict long-term mortality in out-of-hospital cardiac arrest (OHCA) subjects. In this work, they observed significant changes in systolic function and hemodynamic parameters on serial Doppler TTE after OHCA. These changes were consistent with reversible post-arrest myocardial dysfunction. In long-term survivors, the magnitude of those changes was greater, highlighting that the degree of recovery from post-arrest myocardial dysfunction may be more important than its initial severity.