Fractionated electrograms are used by some as targets for ablation in atrial and ventricular arrhythmias. Fractionation has been demonstrated to result when there is repetitive or asynchronous ...

Cardiac and respiratory movements cause catheter instability. Lateral catheter sliding over target endocardial surface can lead to poor tissue contact and unpredictable lesion formation. We describe a ...

Objective: Determining accurate intracardiac maps of atrial fibrillation (AF) in humans can be difficult, owing primarily to various sources of contamination in electrogram signals. The goal of this ...

An electrogram was recorded from the angioplasty catheter guide wire when coronary blood flow was interrupted in 20 patients undergoing percutaneous transluminal coronary angioplasty. Monophasic ...

Several potential options as to how to annotate the electrogram timing exist, including whether to use unipolar or bipolar signals, taking the maximum amplitude of the electrogram, earliest portion of ...

Introduction His-Purkinje conduction system being a physiological pacing has evolved over the years and has overcome the complications associated with right ventricular pacing to a great extent due to ...