Association between residual unipolar voltage and arrhythmia recurrence after left atrial posterior wall isolation for persistent atrial fibrillation.
J Cardiovasc Electrophysiol
; 34(8): 1622-1629, 2023 08.
Article
en En
| MEDLINE
| ID: mdl-37393602
ABSTRACT
INTRODUCTION:
Posterior wall isolation (PWI) combined with pulmonary vein isolation (PVI) has proven effective for persistent atrial fibrillation (AF). However, when performing PWI, creating transmural lesions with subendocardial ablation is sometimes difficult. Endocardial unipolar voltage amplitude had a higher sensitivity than bipolar voltage mapping for identifying intramural viable myocardium in the atria. In this study, we aimed to retrospectively investigate the correlation between the residual potential in the posterior wall (PW) following PWI for persistent AF and atrial arrhythmia recurrence using endocardial unipolar voltage.METHODS:
This was a single-center observational study. Patients who underwent PVI and PWI for persistent AF in the first procedure between March 2018 and December 2021 at the Tokyo Metropolitan Hiroo Hospital were included in this study. The patients were divided into two groups based on the presence of residual unipolar PW potentials after PWI with a cutoff of 1.08 mV and the recurrence of atrial arrhythmias was compared.RESULTS:
In total, 109 patients were included in the analysis. Forty-three patients had residual unipolar potentials after PWI and 66 patients had no residual unipolar potentials. The atrial arrhythmia recurrence rate was significantly higher in the group with residual unipolar potential (41.8% vs. 17.9%, p = 0.003). The residual unipolar potential was an independent predictor of recurrence (odds ratio 4.53; confidence interval 1.67-12.3, p = 0.003).CONCLUSION:
Residual unipolar potential after PWI for persistent AF is associated with recurrent atrial arrhythmias.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Venas Pulmonares
/
Fibrilación Atrial
/
Ablación por Catéter
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
J Cardiovasc Electrophysiol
Asunto de la revista:
ANGIOLOGIA
/
CARDIOLOGIA
/
FISIOLOGIA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Japón