CONCLUSION
CA of complex atrial arrhythmias performed in patients with HF, either
with preserved or reduced LVEF and guided by an UHD system is associated
with similar rates of AF/AT recurrence, and achieved greater improvement
in both NYHA class and LVEF, compared to non-HF patients. Outcomes of CA
were similar in HF patients with preserved or reduced LVEF. Larger
studies should be conducted to address the potential benefit of this
novel mapping system in complex arrhythmias management in case of HF and
the relative benefit of CA and in the particular population of HFpEF
patients.