Baseline Characteristics:
A total of 80 patients who underwent CBA for paroxysmal AF were included
in our analysis. Their baseline characteristics (Table 1 ) were
as follows: age 60.7 ± 9.7 years, males 68.8% (n=55), body mass index
(BMI) 31.5 ± 6.9 kg/m2, baseline LVEF 57 ± 8 % and
recurrence of AA 23.8% (n=19). The majority of the study group (82.5%,
n=66) had a typical PV anatomy with four distinct PVs, while atypical
anatomy with an LCPV was seen in 17.5% (n=14) patients. Other atypical
combinations of RMPV with LCPV (n=3) and RMPV with the four distinct PVs
(n=5) were also present. The study population demographics and clinical
data by the presence or absence of the LCPV are shown in Table
2 . Additional touch up with RF ablation was necessary for 14% (n=2)
versus 6% (n=4) of patients in the LCPV versus typical PV anatomy
group, respectively. The baseline characteristics were similar between
the two groups except for the longer duration of total fluoroscopic time
(TFT) for the LCPV group.