Data analysis
CF was recorded by the EnSite mapping system at approx. 10ms intervals
during each episode of RF application and were exported from the mapping
system for further analysis. RF time per lesion and mean CF per lesion
were used to assess procedural efficiency. Stability in CF was evaluated
in terms of CF variability within an individual lesion; standard
deviation was calculated for the mean CF within each lesion (Figure 1).
Inefficient contact lesions were defined as those whereby CF dropped
below the minimum threshold of 5g for at least 10% of the total RF
application time for the lesion 15,21. Analyses were
performed for the overall procedure, as well as by correlating each
lesion to individual PVs on the electroanatomic map.