Right atrial anatomical remodeling affects early outcomes of nonvalvular atrial fibrillation after radiofrequency ablation.
Circ J
; 76(4): 860-7, 2012.
Article
in En
| MEDLINE
| ID: mdl-22293450
ABSTRACT
BACKGROUND:
The impact of the right atrial (RA) anatomical remodeling on outcomes of atrial fibrillation (AF) after radiofrequency ablation (RFA) is unclear. METHODS ANDRESULTS:
Sixty-three patients (50 men, 57±10 years, 23 persistent AF [PeAF]) who underwent RFA for AF were enrolled. Both RA and left atrial (LA) volumes, measured with multidetector computed tomography, as well as echocardiographic parameters were compared between subjects with early (<3 months, n=13) or 1-year (n=19) recurrence after RFA and without recurrence. The RA volume index (RAVI) was larger (98±21 vs. 77±22 ml/m²) and PeAF was more common (62% vs. 30%) in the early recurrence group (P<0.05 for all), whereas the LA volume index (LAVI) was similar between the 2 groups (78±15 vs. 72±19 ml/m², P=0.23). Notably, RAVI was the only independent predictor of early recurrence (for each 10 ml/m² increase, OR 1.650, 95%CI 1.017-2.677, P=0.04). PeAF was the only independent predictor of 1-year recurrence after RFA (OR 4.496, 95%CI 1.110-18.211, P=0.04), whereas RAVI and LAVI were not.CONCLUSIONS:
RA anatomical remodeling might affect the early recurrence of AF after RFA. However, the chronicity of AF, rather than RA and LA anatomical remodeling, is a determinant of 1-year recurrence of AF after RFA.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Atrial Fibrillation
/
Catheter Ablation
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Asia
Language:
En
Journal:
Circ J
Journal subject:
ANGIOLOGIA
/
CARDIOLOGIA
Year:
2012
Type:
Article