Late left ventricular summit premature ventricular contractions elimination with new TactiFlex irrigation technology

Figure 1 TactiFlex™ Sensor Enabled™ Catheter. In the left panel, the flexible porous tip electrode is shown, in the right panel difference in energy delivery between a conventional catheter (on the top) and a flexible porous tip (on the bottom) (Supplementary material).

Figure 2 Electrocardiogram/electrogram signals. A: Left ventricular activation map and electrocardiogram/electrogram signals. Best signals recorded (-27 milliseconds) in mitroaortic continuity, 6 lesions (max 35 W, 60 seconds, medium impedance drop 14.3 ohms) were performed without disappearance of arrhythmias; B: Left ventricular activation map and electrocardiogram/electrogram signals. Best signals (-25 milliseconds) recorded in mitroaortic continuity, 4 lesions (max 35 W, 60 seconds, medium impedance drop 11.4 ohms) were performed without disappearance of arrhythmias (Supplementary material).

Figure 3 Left ventricular/right ventricular activation map and electrocardiogram/electrogram signals. Best signals recorded (-34 milliseconds) in mitroaortic continuity, 5 lesions (max 35 W, 60 seconds, medium impedance drop 10.2 ohms) were performed without disappearance of arrhythmias. An anatomical approach was performed with the other 4 lesions in the posteroseptal right ventricular outflow tract. The arrow indicates catheter direction during mapping (Supplementary material).