CONCLUSION:
In this prospective study evaluating the impact of each RF application
for slow pathway ablation for AVNRT junctional rhythm was required in
all for acute success. Cycle length of JR during RF was not predictive
of success. Unintended JA block during faster JR was associated with
slow pathway block. RF applications as short as 10 seconds resulting in
junctional rhythm may be successful in some patients.
Table 1: Comparison of lesion characteristics between successful and
unsuccessful RF applications lesions with junctional response during
ablation