Patient selection
We conducted a single-center, retrospective cohort study comprised of
patients enrolled in an IRB-approved, prospectively populated clinical
database of AF ablation patients. The included study patients were at
least 75 years of age and underwent their index AF ablation using either
RF or CB ablation technique at our center between January 2010 and March
2019. The demographics, clinical history, procedural data,
complications, and outcomes were recorded for each case. Patients were
excluded if they had prior CA of AF, LA thrombus detected on
pre-procedural transesophageal echocardiography (TEE) or computed
tomography (CT) scan, and advanced comorbidities and frailty precluding
CA.