New Model Estimates Odds of Events that Trigger Sudden Cardiac Death (image) PLOS Share Print E-Mail Caption 3-D heart cell simulations exhibiting propagating waves of spontaneous calcium release that can trigger rare, deadly arrhythmias. Credit Walker et al. Usage Restrictions CC-BY. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.