Fragments of Holter monitoring a 64-year-old patient with paroxysms supraventricular tachycardia are presented, atrial ectopic activity during is recorded, which does not interrupt the tachycardia, but changes sequence RR intervals. The possibility remote analysis data 3-day patient’s electrocardiogram in 12-channel provided.

1997; 47: 285–9. [17] Cameron A, Schwartz MJ, Kronmal RA et al. Prevalence and significance of atrial fibrillation in coronary artery disease (CASS Registry). Am J Cardiol 1988; 61: 714. [18] Page RL, Wilkinson WE, Clair WK, MaCarthy EA, Pritchett EC. Asymptomatic arrhythmias in patients with symptomatic paroxysmal atrial fibrillation and paroxysmal supraventricular tachycardia. Circulation 199...

OBJECTIVE The purpose of this study was to determine if the atrial response upon cessation of ventricular pacing associated with 1:1 ventriculoatrial conduction during paroxysmal supraventricular tachycardia is a useful diagnostic maneuver in the electrophysiology laboratory. BACKGROUND Despite various maneuvers, it can be difficult to differentiate atrial tachycardia from other forms of paro...

A 28-year-old man underwent an electrophysiologic procedure becau.se of frequent episodes of paroxysmal supraventricular tachycardia. The baseline sinus cycle length. alrial-His (AH) interval, and His-ventricular {HV) intei-vals were 800, 90, and 40 msec, respectively. A narrow-QRS tachycardia having a cycle length of 250 to 280 msec was reproducibly induced by ventricular programmed stitnulati...

A 66-year-old woman with a 24-year history of paroxysmal supraventricular tachycardia underwent an electrophysiologic procedure. The baseline sinus cycle length, atrial-His (AH), and Hisventricular (HV) intervals were 8(X). 70, and 40 msec, respectively. Programmed stimulation with a single atrial extrastimulus did not demonstrate dual AV nodal physiology and did not result in the induction of ...

Evidence of dual atrioventricular nodal pathwats (a sudden jump in H1-H2 at critical A1-A2 coupling intervals) was shown in 41 out of 397 patients studied with atrial extrastimulus techniques. In 27 of these 41, dual pathways were demonstrable during sinus rhythm, or at a cycle length close to sinus rhythm (CL1). In the remaining 14, dual pathways were only demonstrated at a shorter cycle lengt...