Methods and results
Consecutive 524 adult and pediatric patients referred to our institution
from July 2014 to December 2019 were analyzed. Patients with cardiac
implantable electronic devices (CIEDs) were also included. All
procedures were performed with ICE-guided TSP combined with 3D EAM.
Adverse events following TSP and within 30 days of the procedure were
analyzed. Altogether 949 TSPs (363 double punctures, 76.5%) were
performed in 586 fluoroless ablation procedures: 451 (77%) were
ablation of atrial fibrillation or atypical flutter, 75 (12.8%) of
left-sided accessory pathway, 33 (5.6%) of ventricular tachycardia, and
27 (4.6%) of focal atrial tachycardia. Forty-six (7.8%) procedures
were performed in pediatric population and 36 procedures (6.1%) in
patients with CIED. Only 2 TSPs were unsuccessful (2/949, 0.2%).
Overall procedural complication rate was 1.9% (11/586 procedures).
There was only 1 TSP related pericardial tamponade (2/949, 0.2%). In
CIED patients there was 1 lead dislocation following TSP.