Characterization of Aortic Valve Closure Artifact During Outflow Tract Mapping: Correlation With Hemodynamics and Mechanical Valves [Original Articles]

Conclusions— In patients referred for left ventricle outflow tract premature ventricular contraction ablation, an aortic valve closure artifact is observed in up to one third of cases during mapping within the aortic cusps. The timing of this artifact correlates with invasive hemodynamics and mechanical aortic valve artifacts. Recognition of this physiological phenomenon is useful when assigning near-field activation.
Source: Circulation: Arrhythmia and Electrophysiology - Category: Cardiology Authors: Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Electrophysiology Original Articles Source Type: research