Denervation as a Common Mechanism Underlying Different Pulmonary Vein Isolation Strategies for Paroxysmal Atrial Fibrillation: Evidenced by Heart Rate Variability after Ablation
Table 1
Baseline and procedural characteristics of subgroups.
SPVI group
CPVI group
SPVI versus CPVI groups
SPVI-S ()
SPVI-R ()
P value
CPVI-S ()
CPVI-R ()
P value
P value
Sex, M/F
25/18
15/6
NS
56/20
28/7
NS
NS
Age (year)
NS
NS
NS
AF history prior to PVI (month)
NS
NS
NS
LAD (mm)
NS
NS
NS
LVEF (%)
NS
NS
NS
HT (%)
34.9% (15/43)
47.6% (10/21)
NS
38.2% (29/76)
38.2% (13/35)
NS
NS
CHD (%)
4.6% (2/43)
9.5% (2/21)
NS
6.6% (5/76)
8.6% (3/35)
NS
NS
Ablation time (min)
NS
NS
Vagal reflexes
4.6% (2/43)
9.5% (2/21)
NS
14.5% (11/76)
17.1% (6/35)
NS
SPVI: segmental pulmonary vein isolation; CPVI: circumferential pulmonary vein isolation; LAD: left atrial diameter; LVEF: left ventricular ejection fraction; HT: hypertension; CHD: coronary heart disease. NS: not significant.
