Large Pericardial Effusion on POCUS Good example of swinging heart in pre tamponade. Reason for electrical alternans in pericardial effusion. EKG from same patient: https://www.grepmed.com/images/4745 - Brian Kolski,MD @bkolskk #Pericardial #Effusion #swinging #electrical #alternans #POCUS #Echocardiogram #A4C #Clinical #Cardiology #Swinging