A 56-year-old woman with a history of stage II cancer of the left breast presented with progressive shortness of breath and fatigue. Transthoracic echocardiography revealed a large pericardial effusion with the heart freely swinging in an anterior–posterior fashion, shown in a video.
See the NEJM article: "Electrical Alternans with Pericardial Tamponade": [ Ссылка ]
