Prolonged depressing effect of premature supraventricular beats. A mechanism causing transient ventricular standstill.
D000368:Aged; D001146:Arrhythmia, Sinus; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006327:Heart Block; D006329:Heart Conduction System; D006801:Humans; D008297:Male; D008875:Middle Aged