Cardiac motion in total electrical alternans.
Gross pendular motion of the heart at half the heart rate was observed during cardiac catheterization and pericardiotomy in a patient with massive pericardial effusion and electrical alternans in the electrocardiogram. These observations support the hypothesis that total electrical alternans in pericardial effusion is a result of alternate change in cardiac position.
D000328:Adult; D006328:Cardiac Catheterization; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D010490:Pericardial Effusion / Q000175:diagnosis / Q000503:physiopathology; D010496:Pericardium / Q000601:surgery