Objectives:

The objective of this report is to demonstrate the feasibility and safety of performing RCA of conventional and complex cardiac arrhythmias (CA) without using X-rays in a single center.

Material and methods:

Patients with different CA and with indication of RCA were included. All had an echocardiogram and the antiarrhythmic drugs were suspended 5 half-lives before the procedure. Two three-dimensional mapping systems were used. First a catheter was advanced to draw the path of the access vessels and then the cardiac cavities were reconstructed and the origin of the arrhythmia was located. RCA with conventional parameters were performed.

Results:

We included 14 patients with mean age of 46.4 ± 16.9 years, 7 (50%) women, 2 (14.3%) had heart failure. There were 11 (78.6%) common and 3 (21.4%) complex arrhythmias. In 10 (71.4%) patients, the Carto 3 system was used and in the rest the Ensite system. A mean of 334 ± 335 mapping points were performed, an irrigated catheter was used in 12 (85.7%) patients, 50 ± 82 ablation applications were performed, the duration of the procedure was 100 ± 24 minutes and 13 (92.8%) of the procedures were successful. No X-rays were used and there were no complications.

Conclusions:

It is feasible and safe to perform RCA of conventional or complex CA with a three-dimensional mapping system, without using X-rays and with 92.8% success rate.