VENTRICULAR PARASYSTOLE WITH SLOW MANIFEST ECTOPIC DISCHARGE

Abstract

A case of ventricular parasystole with very slow manifest ectopic discharge is described. The interectopic intervals in a single recording fluctuated within relatively wide limits. The manifest ectopic discharge also fluctuated from day to day. These phenomena could be explained on the basis of a relatively fast ectopic discharge associated with a high grade, 7:1, 8:1, or 9:1 exit block.