ABSTRACT

Generalities Different methods of pacing Other methods of pacing Definition of the effective, relative, and functional refractory periods Atrial pacing Sinus node testing Ventricular pacing EPS example

GENERALITIES The purpose of an EP study is to assess the dynamic electrophysiologic properties of the different atrial, AV node, HPS, and ventricular cells and eventually try to induce and analyze cardiac arrhythmias, with concomitant use of drugs if necessary (e.g., isoproterenol, adenosine, calcium, atropine, procainamide in the US, ajmaline in Europe, epinephrine, aminophylline).