Learning curve in circular multipolar phased radiofrequency ablation of atrial fibrillation

Abstract

(Cardiol J 2015; 22, 3: 260-266)

First clinical experience using a novel high-resolution electroanatomical mapping system for left atrial ablation procedures

“…Although there were no significant differences regarding patient characteristics and the type of ablation procedure between the two cohorts, we observed a significant shortening of mapping duration, and total procedure time, which is in line with previous data [18][19][20]. Shorter total procedure times were mostly related to shorter mapping times with the mini-basket catheter and avoidance of relevant anatomical shifts necessitating remaps, since other procedural parameters did not significantly differ between the two groups.…”

Radiofrequency catheter ablation of frequent premature ventricular contractions using ARRAY multi-electrode balloon catheter

“…epicardial origin) or the occurrence of rare complications [19]. Since it is a single-center study, we cannot compare this result with different groups.…”

“…In our case it was possible to successfully carry out such maneuver in every patient, but in some cases it took up to 30 min. We observed a reduction of total and fluoroscopy times when comparing recent cases with the initial ones (learning curve) [19]. Another limitation of the method is related to the distance between the central axis of the balloon catheter and the focus of the arrhythmia.…”

AF ablation: Single shot multielectrode or multishot single electrode?

“…However, with the small number of patients in this group (65 patients) in two studies, the learning effect from the use of this novel catheter may have impacted on those durations. Such effect on procedural parameters was described in the literature with the early use of circular multi-electrode catheters [9].…”