The following free-access publications are currently available from the the U.S. National Institutes of Health's National Library of Medicine via its PubMed Central:

Robotic magnetic navigation for ablation of human arrhythmias
Antoine Da Costa, Jean Baptiste Guichard, Cécile Roméyer-Bouchard, Antoine Gerbay, and Karl Isaaz
Medical Devices: Evidence and Research; 2016: 9 331–339

Catheter Ablation to Treat Supraventricular Arrhythmia in Children and Adults With Congenital Heart Disease: What We Know and Where We Are Going
Patricia E. Thomas, and Scott L. Macicek
Ochsner Journal; 2016: 16 290–296

Successful ablation of frequent atrial premature beats from non-coronary aortic cusp with remote magnetic navigation
Ahmed Taha Hussein Abdelwahed, Heikki Makynen, and M.J. Pekka Raatikainen
Indian Pacing and Electrophysiology Journal, July–August 2015: Volume 15, Issue 4, pp. 206-209
Remote Magnetic versus Manual Navigation for Radiofrequency Ablation of Paroxysmal Atrial Fibrillation: Long-Term, Controlled Data in a Large Cohort
Vikas Kataria, Benjamin Berte, Yves Vandekerckhove, Rene Tavernier, and Mattias Duytschaever
BioMed Research International; Volume 2017, Article ID 6323729
Atrial Fibrillation Ablation Using Magnetic Navigation Comparison With Conventional Approach During Long-Term Follow-Up
Tolga AKSU, Serdar BOZYEL, Ebru GOLCUK, Kývanc YALIN, and Tumer Erdem GULER
Journal of Atrial Fibrillation; Oct-Nov 2015: Volume 8, Issue 3, pp. 51- 57
Combined use of TandemHeart percutaneous ventricular assist device and Stereotaxis magnetic navigation during cardiac ablation procedure
Andrew C. Miller, Annicka C. Evans, James Revenaugh, J. Peter Weiss, Bruce B. Reid, and Abdallah G. Kfoury
Heart Rhythm Case Reports; 2016: 2: 14–16