Author and year |
DF definition |
Type of Population |
Ablation |
Clinical Correlation |
Areas assessed |
Follow-up |
*Atienza et al 2009 |
DFmax ≥20% of its surroundings |
Paroxysmal (32) and Persistent (18) AF. |
DFmax + CPVI |
Independent predictors of freedom of AF were ablation of DFmax sites and paroxysmal AF. |
PV-PLAW, LA, CS, RA |
9.3 ± 5.4 months |
§Atienza et al 2014 |
DFmax ≥20% of its surroundings |
Paroxysmal (115) and Persistent (117) AF |
CPVI only HFSA only
CPVI + HFSA |
Freedom was seen in 79% of CPVI and 81% of HFSA in paroxysmal AF, and in 65% of CPVI and 69% of CPVI + HFSA in persistent AF patients at 1 year. |
LA, CS, RA |
12 months |
*Kumagai et al 2013 |
DF ≥ 8Hz with RI >0.2 |
Paroxysmal (23) AF, Persistent (9) AF and Longstanding Persistent (18) AF. |
PVI PVI + DF
PVI + DF + CFAE |
AF terminated by ablation at high-DF sites (9.9 ± 0.7 Hz) in 11 of 18 patients. |
LA, RA, CS |
12 months |
**Verma et al 2011 |
Group I: DF ≥ 8Hz with RI >0.2 Group II: DF higher than the mean atrial DF with RI >0.2 |
Persistent (80) AF |
CFAE-based
DF + PVAI Control PVAI |
After 1 year, DF + PVAI resulted in freedom in 17/30 patients (57%) off antiarrhythmic therapy after 1 procedure. |
LA |
12 ± 2 months |