Patient Population:
A retrospective chart analysis was performed for all patients with a
known diagnosis of paroxysmal AF undergoing CBA as a first or repeat
procedure between the dates of January 2015 and April 2018. The study
population was following at the Reliant Medical Group Cardiology Clinic
at Saint Vincent Hospital in Worcester, Massachusetts. Prior to chart
review and data collection, the study protocol was approved by the
institutional review boards at both the Reliant Medical Group and Saint
Vincent Hospital. Patients over the age of 18 with a diagnosis of
paroxysmal AF were selected for review while those with a diagnosis of
persistent or permanent AF were excluded. Based on our initial
screening, 103 patients met the study inclusion criteria. We
subsequently excluded 23 patients who did not undergo cardiac computed
tomography (cCT) imaging prior to the procedure or, due to technical
issues, images could not be retrieved from the radiology archives. The
final analysis included 80 patients who underwent a detailed chart
review for baseline demographics, underlying comorbidities, medication
use and CBA procedural data. In addition, analysis with measurements of
the PV anatomy on cCT was performed for all patients.